TI TLC27L4ACN

TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
D
D
D
D
D
D
D
D
D
1OUT
1IN –
1IN +
VDD
2IN +
2IN –
2OUT
1
14
2
13
3
12
4
11
5
10
6
9
7
8
4OUT
4IN –
4IN +
GND
3IN +
3IN –
3OUT
FK PACKAGE
(TOP VIEW)
1IN –
1OUT
NC
4OUT
4IN –
D
D, J, N, OR PW PACKAGE
(TOP VIEW)
Trimmed Offset Voltage:
TLC27L9 . . . 900 µV Max at 25°C,
VDD = 5 V
Input Offset Voltage Drift . . . Typically
0.1 µV/Month, Including the First 30 Days
Wide Range of Supply Voltages Over
Specified Temperature Range:
0°C to 70°C . . . 3 V to 16 V
– 40°C to 85°C . . . 4 V to 16 V
– 55°C to 125°C . . . 4 V to 16 V
Single-Supply Operation
Common-Mode Input Voltage Range
Extends Below the Negative Rail (C-Suffix,
I-Suffix Types)
Ultra-Low Power . . . Typically 195 µW
at 25°C, VDD = 5 V
Output Voltage Range includes Negative
Rail
High Input Impedance . . . 1012 Ω Typ
ESD-Protection Circuitry
Small-Outline Package Option Also
Available in Tape and Reel
Designed-In Latch-Up Immunity
1IN +
NC
VDD
NC
2IN +
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
4IN +
NC
GND
NC
3IN +
2IN –
2OUT
NC
3OUT
3IN –
D
description
NC – No internal connection
The TLC27L4 and TLC27L9 quad operational
amplifiers combine a wide range of input offset
voltage grades with low offset voltage drift, high
input impedance, extremely low power, and high
gain.
The extremely high input impedance, low bias
currents, and low-power consumption make
these cost-effective devices ideal for high-gain,
low- frequency, low-power applications. Four
offset voltage grades are available (C-suffix and
I-suffix types), ranging from the low-cost TLC27L4
(10 mV) to the high-precision TLC27L9 (900 µV).
These advantages, in combination with good
common-mode rejection and supply voltage
rejection, make these devices a good choice for
new state-of-the-art designs as well as for
upgrading existing designs.
40
35
Percentage of Units – %
These devices use Texas instruments silicon-gate
LinCMOS technology, which provides offset
voltage stability far exceeding the stability
available with conventional metal-gate processes.
DISTRIBUTION OF TLC27L9
INPUT OFFSET VOLTAGE
30
299 Units Tested From 2 Wafer Lots
VDD = 5 V
TA = 25°C
N Package
25
20
15
10
5
0
– 1200
– 600
0
600
1200
VIO – Input Offset Voltage – µV
LinCMOS is a trademark of Texas Instruments Incorporated.
Copyright  1994, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
description (continued)
In general, many features associated with bipolar technology are available on LinCMOS operational
amplifiers, without the power penalties of bipolar technology. General applications such as transducer
interfacing, analog calculations, amplifier blocks, active filters, and signal buffering are easily designed with the
TLC27L4 and TLC27L9. The devices also exhibit low voltage single-supply operation and ultra-low power
consumption, making them ideally suited for remote and inaccessible battery-powered applications. The
common-mode input voltage range includes the negative rail.
A wide range of packaging options is available, including small-outline and chip-carrier versions for high-density
system applications.
The device inputs and outputs are designed to withstand –100-mA surge currents without sustaining latch-up.
The TLC27L4 and TLC27L9 incorporate internal ESD-protection circuits that prevent functional failures at
voltages up to 2000 V as tested under MIL-STD-883C, Method 3015.2; however, care should be exercised in
handling these devices, as exposure to ESD may result in the degradation of the device parametric
performance.
The C-suffix devices are characterized for operation from 0°C to 70°C. The I-suffix devices are characterized
for operation from – 40°C to 85°C. The M-suffix devices are characterized for operation from – 55°C to 125°C.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
0°C to 70°C
– 40°C to 85°C
– 55°C to 125°C
VIOmax
AT 25°C
SMALL
OUTLINE
(D)
900 µV
TSSOP
(PW)
CHIP
FORM
(Y)
TLC27L9CN
—
—
—
TLC27L4BCN
—
—
—
TLC27L4ACN
—
—
—
—
TLC27L4CN
TLC27L4CPW
TLC27L4Y
CHIP
CARRIER
(FK)
CERAMIC
DIP
(J)
TLC27L9CD
—
—
2 mV
TLC27L4BCD
—
5 mV
TLC27L4ACD
—
10 mV
TLC27L4CD
900 µV
PLASTIC
DIP
(N)
TLC27L9ID
—
—
TLC27L9IN
—
—
2 mV
TLC27L4BID
—
—
TLC27L4BIN
—
—
5 mV
TLC27L4AID
—
—
TLC27L4AIN
—
—
10 mV
TLC27L4ID
—
—
TLC27L4IN
—
—
900 µV
TLC27L9MD
TLC27L9MFK
TLC27L9MJ
TLC27L9MN
—
—
10 mV
TLC27L4MD
TLC27L4MFK
TLC27L4MJ
TLC27L4MN
—
—
The D package is available taped and reeled. Add R suffix to the device type (e.g., TLC27L9CDR).
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
equivalent schematic (each amplifier)
VDD
P3
P4
R6
R1
R2
IN –
N5
P5
P1
P6
P2
IN +
R5
C1
OUT
N3
N1
R3
N2
D1
N4
R4
D2
N6
N7
R7
GND
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TLC27L4Y chip information
These chips, when properly assembled, display characteristics similar to the TLC27L4C. Thermal compression
or ultrasonic bonding may be used on the doped-aluminum bonding pads. Chips may be mounted with
conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
(14)
(13)
(12) (11)
(10)
(9)
(8)
VDD
(4)
(3)
+
1IN +
1IN –
(1)
1OUT
(2)
–
+
(7)
2OUT
–
(10)
68
+
3IN +
(6)
2IN +
2IN –
(8)
3OUT
(9)
–
3IN –
4OUT
(5)
+
(14)
–
(12)
(13)
4IN +
4IN –
(11)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
GND
108
CHIP THICKNESS: 15 TYPICAL
BONDING PADS: 4 × 4 MINIMUM
TJmax = 150°C
TOLERANCES ARE ± 10%.
ALL DIMENSIONS ARE IN MILS.
PIN (11) IS INTERNALLY CONNECTED
TO BACKSIDE OF CHIP.
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
absolute maximum ratings over operating free-air temperature (unless otherwise noted)†
Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± VDD
Input voltage range, VI (any input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to VDD
Input current, II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 5 mA
Output current, IO (each output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 30 mA
Total current into VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 mA
Total current out of GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 mA
Duration of short-circuit current at (or below) 25°C (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlimited
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature, TA: C suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
I suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 85°C
M suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Case temperature for 60 seconds: FK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D, N, or PW package . . . . . . . . . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J package . . . . . . . . . . . . . . . . . . . . . 300°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, except differential voltages, are with respect to network ground.
2. Differential voltages are at IN+ with respect to IN –.
3. The output may be shorted to either supply. Temperature and /or supply voltages must be limited to ensure that the maximum
dissipation rating is not exceeded (see application section).
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
TA = 125°C
POWER RATING
D
950 mW
7.6 mW/°C
608 mW
494 mW
—
FK
1375 mW
11.0 mW/°C
880 mW
715 mW
275 mW
J
1375 mW
11.0 mW/°C
880 mW
715 mW
275 mW
N
1575 mW
12.6 mW/°C
1008 mW
819 mW
—
PW
700 mW
5.6 mW/°C
448 mW
—
—
recommended operating conditions
C SUFFIX
Supply voltage, VDD
Common mode input voltage,
Common-mode
voltage VIC
VDD = 5 V
VDD = 10 V
Operating free-air temperature, TA
POST OFFICE BOX 655303
I SUFFIX
M SUFFIX
MIN
MAX
MIN
MAX
MIN
MAX
3
16
4
16
4
16
– 0.2
3.5
– 0.2
3.5
0
3.5
– 0.2
8.5
– 0.2
8.5
0
8.5
0
70
– 40
85
– 55
125
• DALLAS, TEXAS 75265
UNIT
V
V
°C
5
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA†
TLC27L4C
TLC27L4AC
TLC27L4BC
TLC27L9C
MIN
VIO
TLC27L4C
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
TLC27L4AC
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
TLC27L4BC
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
Input offset voltage
TLC27L9C
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
αVIO
Average temperature coefficient of input
offset voltage
IIO
Input offset current (see Note 4)
VO = 2
2.5
5V
V,
VIC = 2
2.5
5V
IIB
Input bias current (see Note 4)
5V
VO = 2
2.5
V,
5V
VIC = 2
2.5
VICR
VOH
VOL
AVD
CMRR
kSVR
25°C
High-level output voltage
Low-level output voltage
Large-signal
L
i
l differential
diff
ti l voltage
lt
am
lification
amplification
Common-mode rejection ratio
VID = 100 mV,
RL = 1 MΩ
VID = –100 mV,
IOL = 0
VO = 2.5 V to 2 V,
RL = 1 MΩ
VIC = VICRmin
Supply-voltage
S
l
lt
rejection
j ti ratio
ti
(∆VDD /∆VIO)
VDD = 5 V to 10 V,
Supply current (four amplifiers)
VO = 2.5
2 5 V,
V
No load
VO = 1.4 V
TYP
MAX
1.1
10
Full range
12
25°C
0.9
5
240
2000
3000
25°C
200
Full range
900
1.1
25°C
0.1
70°C
7
25°C
0.6
70°C
40
25°C
– 0.2
to
4
Full range
– 0.2
to
3.5
µV/°C
300
600
– 0.3
to
4.2
25°C
3.2
4.1
0°C
3
4.1
70°C
3
4.2
V
25°C
0
50
0°C
0
50
70°C
0
50
25°C
50
520
0°C
50
680
70°C
50
380
25°C
65
94
0°C
60
95
70°C
60
95
25°C
70
97
0°C
60
97
70°C
60
98
dB
dB
68
84
70°C
31
† Full range is 0°C to 70°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
56
• DALLAS, TEXAS 75265
mV
V/mV
48
POST OFFICE BOX 655303
pA
V
40
6
pA
V
0°C
VIC = 2
2.5
5V
V,
µV
1500
25°C to
70°C
25°C
IDD
mV
6.5
25°C
Common mode input voltage
g range
g
(see Note 5)
UNIT
µA
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA†
TLC27L4C
TLC27L4AC
TLC27L4BC
TLC27L9C
MIN
VIO
TLC27L4C
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
TLC27L4AC
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
TLC27L4BC
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
Input offset voltage
TLC27L9C
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
αVIO
Average temperature coefficient of
input offset voltage
IIO
Input offset current (see Note 4)
VO = 5 V,
V
VIC = 5 V
IIB
Input bias current (see Note 4)
V
VO = 5 V,
VIC = 5 V
VICR
VOH
VOL
AVD
CMRR
kSVR
25°C
High-level output voltage
Low-level output voltage
Large-signal
L
i
l differential
diff
ti l voltage
lt
amplification
am
lification
Common-mode rejection ratio
S
l
lt
j ti ratio
ti
Supply-voltage
rejection
(∆VDD /∆VIO)
VID = –100 mV,
VO = 1 V to 6 V,
RL = 1 MΩ
IOL = 0
RL = 1 MΩ
VIC = VICRmin
VDD = 5 V to 10 V,
VO = 1.4 V
MAX
1.1
10
12
25°C
0.9
5
25°C
260
2000
3000
25°C
210
1200
µV/°C
1
25°C
0.1
70°C
7
25°C
0.7
70°C
50
25°C
– 0.2
to
9
Full range
– 0.2
to
8.5
300
600
– 0.3
to
9.2
25°C
8
8.9
0°C
7.8
8.9
70°C
7.8
8.9
V
25°C
0
50
0°C
0
50
70°C
0
50
25°C
50
870
0°C
50
1020
70°C
50
660
25°C
65
97
0°C
60
97
70°C
60
97
25°C
70
97
0°C
60
97
70°C
60
98
dB
dB
92
132
70°C
44
† Full range is 0°C to 70°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
80
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
mV
V/mV
72
VIC = 5 V,
V
pA
V
57
VO = 5 V,
V
No load
pA
V
0°C
Supply current (four amplifiers)
µV
1900
Full range
25°C
IDD
mV
6.5
25°C to
70°C
VID = 100 mV,
TYP
Full range
Common-mode input voltage
g range
g
(see Note 5)
UNIT
µA
7
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA†
TLC27L4I
TLC27L4AI
TLC27L4BI
TLC27L9I
MIN
VIO
TLC27L4I
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
TLC27L4AI
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
TLC27L4BI
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
Input offset voltage
VO = 1.4 V,,
RS = 50 Ω,
TLC27L9I
VIC = 0,,
RL = 1 MΩ
αVIO
Average temperature coefficient of input
offset voltage
IIO
Input offset current (see Note 4)
VO = 2
2.5
5V
V,
VIC = 2
2.5
5V
IIB
Input bias current (see Note 4)
5V
VO = 2
2.5
V,
5V
VIC = 2
2.5
VICR
VOH
VOL
AVD
CMRR
kSVR
25°C
High-level output voltage
Low-level output voltage
Large-signal
L
i
l differential
diff
ti l voltage
lt
am
lification
amplification
Common-mode rejection ratio
VID = 100 mV,
RL = 1 MΩ
VID = –100 mV,
IOL = 0
VO = 0.25 V to 2 V,
RL = 1 MΩ
VIC = VICRmin
Supply-voltage
S
l
lt
rejection
j ti ratio
ti
(∆VDD /∆VIO)
VDD = 5 V to 10 V,
Supply current (four amplifiers)
VO = 2.5
25V
V,
No load
VO = 1.4 V
TYP
MAX
1.1
10
Full range
13
25°C
0.9
5
240
2000
3500
25°C
200
Full range
900
1.1
25°C
0.1
85°C
24
25°C
0.6
85°C
200
25°C
– 0.2
to
4
Full range
– 0.2
to
3.5
µV/°C
1000
2000
– 0.3
to
4.2
25°C
3.2
4.1
– 40°C
3
4.1
85°C
3
4.2
V
25°C
0
50
– 40°C
0
50
85°C
0
50
25°C
50
480
– 40°C
50
900
85°C
50
330
25°C
65
94
– 40°C
60
95
85°C
60
95
25°C
70
97
– 40°C
60
97
85°C
60
98
dB
dB
68
108
85°C
29
† Full range is – 40°C to 85°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
52
• DALLAS, TEXAS 75265
mV
V/mV
62
POST OFFICE BOX 655303
pA
V
39
8
pA
V
25°C
VIC = 2
2.5
5V
V,
µV
2000
25°C to
85°C
– 40°C
IDD
mV
7
25°C
Common-mode input voltage
g range
g
(see Note 5)
UNIT
µA
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA†
TLC27L4I
TLC27L4AI
TLC27L4BI
TLC27L9I
MIN
VIO
TLC27L4I
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
TLC27L4AI
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
TLC27L4BI
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
Input offset voltage
VO = 1.4 V,,
RS = 50 Ω,
TLC27L9I
VIC = 0,,
RL = 1 MΩ
αVIO
Average temperature coefficient of input
offset voltage
IIO
Input offset current (see Note 4)
VO = 5 V,
V
VIC = 5 V
IIB
Input bias current (see Note 4)
V
VO = 5 V,
5V
VIC =
=.5
VICR
VOH
VOL
AVD
CMRR
kSVR
25°C
High-level output voltage
Low-level output voltage
Large-signal
L
i
l differential
diff
ti l voltage
lt
amplification
am
lification
Common-mode rejection ratio
S
l
lt
j ti ratio
ti
Supply-voltage
rejection
(∆VDD/∆VIO)
VID = 100 mV,
VID = –100 mV,
VO = 1 V to 6 V,
RL = 1 MΩ
IOL = 0
RL = 1 MΩ
VIC = VICRmin
VDD = 5 V to 10 V,
VO = 1.4 V
TYP
MAX
1.1
10
Full range
13
25°C
0.9
5
260
2000
3500
25°C
210
1200
25°C to
85°C
1
25°C
0.1
85°C
26
25°C
0.7
85°C
220
25°C
– 0.2
to
9
Full range
– 0.2
to
8.5
µV/°C
1000
2000
– 0.3
to
9.2
25°C
8
8.9
– 40°C
7.8
8.9
85°C
7.8
8.9
V
25°C
0
50
– 40°C
0
50
85°C
0
50
25°C
50
800
– 40°C
50
1550
85°C
50
585
25°C
65
97
– 40°C
60
97
85°C
60
98
25°C
70
97
– 40°C
60
97
85°C
60
98
dB
dB
92
172
85°C
40
† Full range is – 40°C to 85°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
72
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
mV
V/mV
98
VIC = 5 V,
V
pA
V
57
V
VO = 5 V,
No load
pA
V
– 40°C
Supply current (four amplifiers)
µV
2900
Full range
25°C
IDD
mV
7
25°C
Common-mode input voltage
g range
g
(see Note 5)
UNIT
µA
9
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA†
TLC27L4M
TLC27L9M
MIN
VIO
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
TLC27L9M
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
Input offset voltage
αVIO
Average temperature coefficient of input
offset voltage
IIO
Input offset current (see Note 4)
IIB
VICR
VOH
VOL
AVD
CMRR
kSVR
25°C
TLC27L4M
Input bias current (see Note 4)
5V
VO = 2
2.5
V,
5V
VIC = 2
2.5
VO = 2
2.5
5V
V,
VIC = 2
2.5
5V
High-level output voltage
Low-level output voltage
Large-signal
L
i
l differential
diff
ti l voltage
lt
am
lification
amplification
Common-mode rejection ratio
VID = 100 mV,
RL = 1 MΩ
VID = –100 mV,
IOL = 0
VO = 0.25 V to 2 V,
RL = 1 MΩ
VIC = VICRmin
Supply-voltage
S
l
lt
rejection
j ti ratio
ti
(∆VDD /∆VIO)
VDD = 5 V to 10 V,
Supply current (four amplifiers)
2 5 V,
V
VO = 2.5
No load
VO = 1.4 V
MAX
1.1
10
12
25°C
200
900
3750
25°C to
125°C
1.4
25°C
0.1
125°C
1.4
25°C
0.6
125°C
9
25°C
– 0.2
to
4
Full range
– 0.2
to
3.5
Common-mode input voltage
g range
g
(see Note 5)
UNIT
TYP
pA
15
35
– 0.3
to
4.2
V
25°C
3.2
4.1
– 55°C
3
4.1
125°C
3
4.2
V
25°C
0
50
– 55°C
0
50
125°C
0
50
25°C
50
480
– 55°C
25
950
125°C
25
200
25°C
65
94
– 55°C
60
95
125°C
60
85
25°C
70
97
– 55°C
60
97
125°C
60
98
dB
dB
68
120
125°C
27
† Full range is – 55°C to 125°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
48
• DALLAS, TEXAS 75265
mV
V/mV
69
POST OFFICE BOX 655303
nA
V
39
10
nA
pA
25°C
2 5 V,
V
VIC = 2.5
µV
µV/°C
– 55°C
IDD
mV
µA
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA†
TLC27L4M
TLC27L9M
MIN
VIO
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
TLC27L9M
VO = 1.4 V,,
RS = 50 Ω,
VIC = 0,,
RL = 1 MΩ
Full range
Input offset voltage
αVIO
Average temperature coefficient of
input offset voltage
IIO
Input offset current (see Note 4)
IIB
VICR
VOH
VOL
AVD
CMRR
kSVR
IDD
25°C
TLC27L4M
Input bias current (see Note 4)
V
VO = 5 V,
VO = 5 V,
V
VIC = 5 V
VIC = 5 V
Low-level output voltage
Large-signal
L
i
l differential
diff
ti l voltage
lt
am
lification
amplification
Common-mode rejection ratio
VID = 100 mV,
VID = –100 mV,
VO = 1 V to 6 V,
RL = 1 MΩ
IOL = 0
RL = 1 MΩ
VIC = VICRmin
Supply-voltage
S
l
lt
rejection
j ti ratio
ti
(∆VDD /∆VIO)
VDD = 5 V to 10 V,
Supply current (four amplifiers)
VO = 5 V,
V
No load
VO = 1.4 V
V
VIC = 5 V,
MAX
1.1
10
12
25°C
210
1200
4300
mV
µV
25°C to
125°C
1.4
µV/°C
25°C
0.1
pA
125°C
1.8
25°C
0.7
125°C
10
25°C
0
to
9
Full range
0
to
8.5
Common-mode input voltage
g range
g
(see Note 5)
High-level output voltage
UNIT
TYP
15
nA
pA
35
– 0.3
to
9.2
nA
V
V
25°C
8
8.9
– 55°C
7.8
8.8
125°C
7.8
9
V
25°C
0
50
– 55°C
0
50
125°C
0
50
25°C
50
800
– 55°C
25
1750
125°C
25
380
25°C
65
97
– 55°C
60
97
125°C
60
91
25°C
70
97
– 55°C
60
97
125°C
60
98
mV
V/mV
dB
dB
25°C
57
92
– 55°C
111
192
125°C
35
60
µA
† Full range is – 55°C to 125°C.
NOTES: 4. The typical values of input bias current and Input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
11
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
electrical characteristics at specified free-air temperature, VDD = 5 V, TA = 25°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
VO = 1.4 V,
RS = 50 Ω,
VIO
Input offset voltage
αVIO
Average temperature coefficient of input offset voltage
IIO
IIB
Input offset current (see Note 4)
TA = 25°C to 70°C
VO = 2.5 V,
Input bias current (see Note 4)
VO = 2.5 V,
VICR
Common-mode input voltage range (see Note 5)
VOH
VOL
High-level output voltage
AVD
CMRR
Large-signal differential voltage amplification
kSVR
Supply-voltage rejection ratio (∆VDD /∆VIO)
IDD
Supply current (four amplifiers)
VID = 100 mV,
VID = –100 mV,
Low-level output voltage
Common-mode rejection ratio
VO = 0.25 V to 2 V,
VIC = VICRmin
VDD = 5 V to 10 V,
VO = 2.5 V,
No load
TLC27L4Y
MIN
VIC = 0,
RL = 1 MΩ
TYP
MAX
1.1
10
UNIT
mV
1.1
µV/°C
0.1
pA
0.6
pA
– 0.2
to
4
– 0.3
to
4.2
V
RL = 1 MΩ
3.2
4.1
V
IOL = 0
RL = 1 MΩ
50
520
V/mV
65
94
dB
70
97
dB
VIC = 2.5 V
VIC = 2.5 V
VO = 1.4 V
VIC = 2.5 V,
0
40
50
68
mV
µA
electrical characteristics at specified free-air temperature, VDD = 10 V, TA = 25°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
VO = 1.4 V,
RS = 50 Ω,
VIO
Input offset voltage
αVIO
Average temperature coefficient of input offset voltage
IIO
IIB
Input offset current (see Note 4)
TA = 25°C to 70°C
VO = 5 V,
Input bias current (see Note 4)
VO = 5 V,
VICR
Common-mode input voltage range (see Note 5)
VOH
VOL
High-level output voltage
AVD
CMRR
Large-signal differential voltage amplification
kSVR
Supply-voltage rejection ratio (∆VDD /∆VIO)
IDD
Supply current (four amplifiers)
VID = 100 mV,
VID = –100 mV,
Low-level output voltage
Common-mode rejection ratio
VO = 1 V to 6 V,
VIC = VICRmin
VDD = 5 V to 10 V,
VO = 5 V,
No load
TLC27L4Y
MIN
VIC = 0,
RL = 1 MΩ
TYP
MAX
1.1
10
0.1
pA
0.7
pA
– 0.2
to
9
– 0.3
to
9.2
V
RL = 1 MΩ
8
8.9
V
IOL = 0
RL = 1 MΩ
50
870
V/mV
65
97
dB
70
97
dB
VO = 1.4 V
VIC = 5 V,
0
57
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
12
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
mV
µV/°C
1
VIC = 5 V
VIC = 5 V
UNIT
50
92
mV
µA
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
operating characteristics at specified free-air temperature, VDD = 5 V
PARAMETER
TEST CONDITIONS
TLC27L4C
TLC27L4AC
TLC27L4BC
TLC27L9C
TA
MIN
VIPP = 1 V
SR
Slew rate at unity gain
RL = 1 MΩ,
CL = 20 pF
pF,
See Figure 1
VIPP = 2.5 V
Vn
BOM
B1
φm
Equivalent input noise voltage
f = 1 kHZ,
See Figure 2
RS = 20 Ω,
Maximum output-swing bandwidth
VO = VOH,
RL = 1 MΩ,
MΩ
CL = 20 pF,
F
See Figure 1
VI = 10 mV,
V
See Figure 3
CL = 20 pF,
F
Unity-gain bandwidth
Phase margin
VI = 10 mV
mV,
CL = 20 pF,
F,
f = B1,
See Figure 3
TYP
25°C
0.03
0°C
0.04
70°C
0.03
25°C
0.03
0°C
0.03
70°C
0.02
25°C
70
25°C
5
0°C
6
70°C
4.5
25°C
85
0°C
100
70°C
65
25°C
34°
0°C
36°
70°C
30°
UNIT
MAX
V/µs
nV/√Hz
kHz
kHz
operating characteristics at specified free-air temperature, VDD = 10 V
PARAMETER
TEST CONDITIONS
TLC27L4C
TLC27L4AC
TLC27L4BC
TLC27L9C
TA
MIN
VIPP = 1 V
SR
Slew rate at unity gain
RL = 1 MΩ,
CL = 20 pF
pF,
See Figure 1
VIPP = 5.5 V
Vn
Equivalent input noise voltage
f = 1 kHz,
See Figure 2
RS = 20 Ω,
BOM
Maximum output-swing bandwidth
VO = VOH,
RL = 1 MΩ,
MΩ
CL = 20 pF,
F
See Figure 1
VI = 10 mV,
V
See Figure 3
F
CL = 20 pF,
B1
φm
Unity-gain bandwidth
Phase margin
VI = 10 mV
mV,
CL = 20 pF,
F,
POST OFFICE BOX 655303
f = B1,
See Figure 3
• DALLAS, TEXAS 75265
TYP
25°C
0.05
0°C
0.05
70°C
0.04
25°C
0.04
0°C
0.05
70°C
0.04
25°C
70
25°C
1
0°C
1.3
70°C
0.9
25°C
110
0°C
125
70°C
90
25°C
38°
0°C
40°
70°C
34°
UNIT
MAX
V/µs
nV/√Hz
kHz
kHz
13
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
operating characteristics at specified free-air temperature, VDD = 5 V
PARAMETER
TEST CONDITIONS
TLC27L4I
TLC27L4AI
TLC27L4BI
TLC27L9I
TA
MIN
VIPP = 1 V
SR
Slew rate at unity gain
RL = 1 MΩ,
CL = 20 pF
pF,
See Figure 1
VIPP = 2.5 V
Vn
BOM
B1
φm
Equivalent input noise voltage
f = 1 HZ,
See Figure 2
RS = 20 Ω,
Maximum output-swing bandwidth
VO = VOH,
RL = 1 MΩ,
MΩ
CL = 20 pF,
F
See Figure 1
VI = 10 mV,
V
See Figure 3
CL = 20 pF,
F
Unity-gain bandwidth
Phase margin
VI = 10 mV
mV,
CL = 20 pF,
F,
f = B1,
See Figure 3
TYP
25°C
0.03
– 40°C
0.04
85°C
0.03
25°C
0.03
– 40°C
0.04
85°C
0.02
25°C
70
25°C
5
– 40°C
7
85°C
4
25°C
85
– 40°C
130
85°C
55
25°C
34°
– 40°C
38°
85°C
28°
UNIT
MAX
V/µs
nV/√Hz
kHz
kHz
operating characteristics at specified free-air temperature, VDD = 10 V
PARAMETER
TEST CONDITIONS
TLC27L4I
TLC27L4AI
TLC27L4BI
TLC27L9I
TA
MIN
VIPP = 1 V
SR
Slew rate at unity gain
RL = 1 MΩ,
CL = 20 pF
pF,
See Figure 1
VIPP = 2.5 V
Vn
Equivalent input noise voltage
f = 1 HZ,
See Figure 2
RS = 20 Ω,
BOM
Maximum output-swing bandwidth
VO = VOH,
RL = 1 MΩ,
MΩ
CL = 20 pF,
F
See Figure 1
VI = 10 mV,
V
See Figure 3
F
CL = 20 pF,
B1
φm
14
Unity-gain bandwidth
Phase margin
VI = 10 mV
mV,
CL = 20 pF,
F,
POST OFFICE BOX 655303
f = B1,
See Figure 3
• DALLAS, TEXAS 75265
TYP
25°C
0.05
– 40°C
0.06
85°C
0.03
25°C
0.04
– 40°C
0.05
85°C
0.03
25°C
70
25°C
1
– 40°C
1.4
85°C
0.8
25°C
110
– 40°C
155
85°C
80
25°C
38°
– 40°C
42°
85°C
32°
UNIT
MAX
V/µs
nV/√Hz
kHz
kHz
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
operating characteristics at specified free-air temperature, VDD = 5 V
PARAMETER
TEST CONDITIONS
TLC27L4M
TLC27L9M
TA
MIN
VIPP = 1 V
SR
Slew rate at unity gain
RL = 1 MΩ,
CL = 20 pF
pF,
See Figure 1
VIPP = 2.5 V
Vn
Equivalent input noise voltage
f = 1 kHz,
See Figure 2
RS = 20 Ω,
BOM
Maximum output-swing bandwidth
VO = VOH,
RL = 1 MΩ,
MΩ
CL = 20 pF,
F
See Figure 1
V
VI = 10 mV,
See Figure 3
F
CL = 20 pF,
B1
φm
Unity-gain bandwidth
Phase margin
VI = 10 mV
mV,
CL = 20 pF,
F,
f = B1,
See Figure 3
TYP
25°C
0.03
– 55°C
0.04
125°C
0.02
25°C
0.03
– 55°C
0.04
125°C
0.02
25°C
70
25°C
5
– 55°C
8
125°C
3
25°C
85
– 55°C
140
125°C
45
25°C
34°
– 55°C
39°
125°C
25°
UNIT
MAX
V/µs
nV/√Hz
kHz
kHz
operating characteristics at specified free-air temperature, VDD = 10 V
PARAMETER
TEST CONDITIONS
TLC27L4M
TLC27L9M
TA
MIN
VIPP = 1 V
SR
Slew rate at unity gain
RL = 1 MΩ,
CL = 20 pF
pF,
See Figure 1
VIPP = 5.5 V
Vn
Equivalent input noise voltage
f = 1 kHz,
See Figure 2
BOM
Maximum output-swing bandwidth
VO = VOH,
RL = 1 MΩ,
MΩ
B1
φm
Unity-gain bandwidth
Phase margin
V
VI = 10 mV,
See Figure 3
VI = 10 mV
mV,
CL = 20 PF,
POST OFFICE BOX 655303
RS = 20 Ω,
CL = 20 pF,
F
See Figure 1
CL = 20 pF,
F
f = B1,
See Figure 3
• DALLAS, TEXAS 75265
TYP
25°C
0.05
– 55°C
0.06
125°C
0.03
25°C
0.04
– 55°C
0.06
125°C
0.03
25°C
70
25°C
1
– 55°C
1.5
125°C
0.7
25°C
110
– 55°C
165
125°C
70
25°C
38°
– 55°C
43°
125°C
29°
UNIT
MAX
V/µs
nV/√Hz
kHz
kHz
15
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
operating characteristics, VDD = 5 V, TA = 25°C
PARAMETER
SR
TEST CONDITIONS
Slew rate at unity gain
TLC27L4Y
MIN
TYP
RL = 1 MΩ,
CL = 20 pF,
pF
See Figure 1
VIPP = 1 V
0.03
VIPP = 2.5 V
0.03
Vn
Equivalent input noise voltage
f = 1 kHz,
See Figure 2
RS = 20 Ω,
BOM
Maximum output-swing bandwidth
VO = VOH,
RL = 1 MΩ,
CL = 20 pF,
See Figure 1
B1
Unity-gain bandwidth
VI = 10 mV,
See Figure 3
CL = 20 pF,
φm
Phase margin
VI = 10 mV,
CL = 20 pF,
f = B1,
See Figure 3
MAX
UNIT
V/µs
70
nV/√Hz
5
kHz
85
kHz
34°
operating characteristics, VDD = 10 V, TA = 25°C
PARAMETER
SR
TEST CONDITIONS
Slew rate at unity gain
VIPP = 1 V
0.05
VIPP = 5.5 V
0.04
Equivalent input noise voltage
f = 1 kHz,
See Figure 2
RS = 20 Ω,
BOM
Maximum output-swing bandwidth
VO = VOH,
RL = 1 MΩ,
CL = 20 pF,
See Figure 1
B1
Unity-gain bandwidth
VI = 10 mV,
See Figure 3
CL = 20 pF,
φm
Phase margin
VI = 10 mV,
CL = 20 pF,
f = B1,
See Figure 3
POST OFFICE BOX 655303
TYP
RL = 1 MΩ,
CL = 20 pF,
pF
See Figure 1
Vn
16
TLC27L4Y
MIN
• DALLAS, TEXAS 75265
MAX
UNIT
V/µs
70
nV/√Hz
1
kHz
110
kHz
38°
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
PARAMETER MEASUREMENT INFORMATION
single-supply versus split-supply test circuits
Because the TLC27L4 and TLC27L9 are optimized for single-supply operation, circuit configurations used for
the various tests often present some inconvenience since the input signal, in many cases, must be offset from
ground. This inconvenience can be avoided by testing the device with split supplies and the output load tied to
the negative rail. A comparison of single-supply versus split-supply test circuits is shown below. The use of either
circuit gives the same result.
VDD
VDD +
–
–
VO
VO
+
CL
+
VI
VI
RL
CL
RL
VDD –
(b) SPLIT SUPPLY
(a) SINGLE SUPPLY
Figure 1. Unity-Gain Amplifier
2 kΩ
VDD
VDD +
–
–
20 Ω
2 kΩ
1/2 VDD
VO
VO
+
+
20 Ω
20 Ω
20 Ω
VDD –
(a) SINGLE SUPPLY
(b) SPLIT SUPPLY
Figure 2. Noise-Test Circuit
10 kΩ
10 kΩ
VDD
VI
100 Ω
VO
–
VO
+
+
1/2 VDD
VDD +
–
VI
100 Ω
CL
CL
VDD –
(a) SINGLE SUPPLY
(b) SPLIT SUPPLY
Figure 3. Gain-of-100 Inverting Amplifier
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
17
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
PARAMETER MEASUREMENT INFORMATION
input bias current
Because of the high input impedance of the TLC27L4 and TLC27L9 operational amplifiers, attempts to measure
the input bias current can result in erroneous readings. The bias current at normal room ambient temperature
is typically less than 1 pA, a value that is easily exceeded by leakages on the test socket. Two suggestions are
offered to avoid erroneous measurements:
1. Isolate the device from other potential leakage sources. Use a grounded shield around and between the
device inputs (see Figure 4). Leakages that would otherwise flow to the inputs are shunted away.
2. Compensate for the leakage of the test socket by actually performing an input bias current test (using
a picoammeter) with no device in the test socket. The actual input bias current can then be calculated
by subtracting the open-socket leakage readings from the readings obtained with a device in the test
socket.
One word of caution: many automatic testers as well as some bench-top operational amplifier testers use the
servo-loop technique with a resistor in series with the device input to measure the input bias current (the voltage
drop across the series resistor is measured and the bias current is calculated). This method requires that a
device be inserted into the test socket to obtain a correct reading; therefore, an open-socket reading is not
feasible using this method.
7
1
V = VIC
8
14
Figure 4. Isolation Metal Around Device Inputs (J and N packages)
low-level output voltage
To obtain low-supply-voltage operation, some compromise was necessary in the input stage. This compromise
results in the device low-level output being dependent on both the common-mode input voltage level as well
as the differential input voltage level. When attempting to correlate low-level output readings with those quoted
in the electrical specifications, these two conditions should be observed. If conditions other than these are to
be used, please refer to Figures 14 through 19 in the Typical Characteristics of this data sheet.
input offset voltage temperature coefficient
Erroneous readings often result from attempts to measure temperature coefficient of input offset voltage. This
parameter is actually a calculation using input offset voltage measurements obtained at two different
temperatures. When one (or both) of the temperatures is below freezing, moisture can collect on both the device
and the test socket. This moisture results in leakage and contact resistance, which can cause erroneous input
offset voltage readings. The isolation techniques previously mentioned have no effect on the leakage since the
moisture also covers the isolation metal itself, thereby rendering it useless. It is suggested that these
measurements be performed at temperatures above freezing to minimize error.
18
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
PARAMETER MEASUREMENT INFORMATION
full-power response
Full-power response, the frequency above which the operational amplifier slew rate limits the output voltage
swing, is often specified two ways: full-linear response and full-peak response. The full-linear response is
generally measured by monitoring the distortion level of the output while increasing the frequency of a sinusoidal
input signal until the maximum frequency is found above which the output contains significant distortion. The
full-peak response is defined as the maximum output frequency, without regard to distortion, above which full
peak-to-peak output swing cannot be maintained.
Because there is no industry-wide accepted value for significant distortion, the full-peak response is specified
in this data sheet and is measured using the circuit of Figure 1. The initial setup involves the use of a sinusoidal
input to determine the maximum peak-to-peak output of the device (the amplitude of the sinusoidal wave is
increased until clipping occurs). The sinusoidal wave is then replaced with a square wave of the same
amplitude. The frequency is then increased until the maximum peak-to-peak output can no longer be maintained
(Figure 5). A square wave is used to allow a more accurate determination of the point at which the maximum
peak-to-peak output is reached.
(a) f = 100 Hz
(b) BOM > f > 100 Hz
(c) f = BOM
(d) f > BOM
Figure 5. Full-Power-Response Output Signal
test time
Inadequate test time is a frequent problem, especially when testing CMOS devices in a high-volume,
short-test-time environment. Internal capacitances are inherently higher in CMOS than in bipolar and BiFET
devices and require longer test times than their bipolar and BiFET counterparts. The problem becomes more
pronounced with reduced supply levels and lower temperatures.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
19
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
VIO
αVIO
Input offset voltage
Distribution
Temperature coefficient
Distribution
High-level
g
output voltage
g
vs High-level
output current
g
vs Supply voltage
g
vs Free-air temperature
10,, 11
12
13
VOL
Low level output voltage
Low-level
vs Common-mode
Common mode input
in ut voltage
vs Differential input voltage
g
vs Free-air temperature
vs Low-level output current
14, 15
16
17
18, 19
AVD
Differential voltage
g amplification
vs Supply
y voltage
g
vs Free-air temperature
vs Frequency
20
21
32, 33
Input bias and input offset current
vs Free-air temperature
22
Common-mode input voltage
vs Supply voltage
23
IDD
Supply current
vs Supply
y voltage
g
vs Free-air temperature
24
25
SR
Slew rate
vs Supply
y voltage
g
vs Free-air temperature
26
27
Normalized slew rate
vs Free-air temperature
28
Maximum peak-to-peak output voltage
vs Frequency
29
B1
Unity gain bandwidth
Unity-gain
vs Free-air temperature
vs Supply voltage
30
31
φm
Phase margin
g
vs Supply
y voltage
g
vs Free-air temperature
vs Capacitive loads
34
35
36
Equivalent input noise voltage
vs Frequency
37
Phase shift
vs Frequency
32, 33
VOH
IIB / IIO
VIC
VO(PP)
Vn
φ
20
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
6, 7
8, 9
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
DISTRIBUTION OF TLC27L4
INPUT OFFSET VOLTAGE
DISTRIBUTION OF TLC27L4
INPUT OFFSET VOLTAGE
70
70
905 Amplifiers Tested From 6 Wafer Lots
VDD = 5 V
TA = 25°C
N Package
905 Amplifiers Tested From 6 Wafer Lots
VDD = 10 V
TA = 25°C
N Package
60
Percentage of Units – %
Percentage of Units – %
60
50
40
30
20
50
40
30
20
10
10
0
0
–5
–4
–3 –2 –1
0
1
2
3
VIO – Input Offset Voltage – mV
4
–5
5
–4
–3 –2 –1 0
1
2
3
VIO – Input Offset Voltage – mV
Figure 6
DISTRIBUTION OF TLC27L4 AND TLC27L9
INPUT OFFSET VOLTAGE
TEMPERATURE COEFFICIENT
70
70
40
356 Amplifiers Tested From 8 Wafer Lots
VDD = 5 V
TA = 25°C to 125°C
N Package
Outliers:
(1) 19.2 µV/°C
(1) 12.1 µV/°C
60
Percentage of Units – %
Percentage of Units – %
50
5
Figure 7
DISTRIBUTION OF TLC27L4 AND TLC27L9
INPUT OFFSET VOLTAGE
TEMPERATURE COEFFICIENT
60
4
30
20
50
40
356 Amplifiers Tested From 6 Wafer Lots
VDD = 10 V
TA = 25°C to 125°C
N Package
Outliers:
(1) 18.7 µV/°C
(1) 11.6 µV/°C
30
20
10
10
0
2
4
6
8
– 10 – 8 – 6 – 4 – 2 0
αVIO – Temperature Coefficient – µV/°C
10
0
– 10 – 8 – 6 – 4 – 2
0
2
4
6
8
αVIO – Temperature Coefficient – µV/°C
10
Figure 9
Figure 8
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
21
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS†
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
16
VID = 100 mV
TA = 25°C
VOH – High-Level Output Voltage – V
VOH – High-Level Output Voltage – V
5
4
VDD = 5 V
3
VDD = 4 V
VDD = 3 V
2
1
0
0
–2
–4
–6
–8
IOH – High-Level Output Current – mA
VID = 100 mV
TA = 25°C
14
VDD = 16 V
12
10
8
VDD = 10 V
6
4
2
0
– 10
0
– 5 – 10 – 15
– 20 – 25
– 30 – 35
IOH – High-Level Output Current – mA
Figure 11
Figure 10
HIGH-LEVEL OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
HIGH-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
VDD – 1.6
VID = 100 mV
RL = 1 MΩ
TA = 25°C
14
VOH – High-Level Output Voltage – V
VOH – High-Level Output Voltage – V
16
12
10
8
6
4
2
0
0
2
4
6
8
10
12
VDD – Supply Voltage – V
14
16
IOH = – 5 mA
VID = 100 mV
VDD – 1.7
VDD = 5 V
VDD – 1.8
VDD – 1.9
VDD – 2
VDD = 10 V
VDD – 2.1
VDD – 2.2
VDD – 2.3
VDD – 2.4
– 75
Figure 12
– 50
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
Figure 13
† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
22
– 40
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
125
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS†
LOW-LEVEL OUTPUT VOLTAGE
vs
COMMON-MODE INPUT VOLTAGE
LOW-LEVEL OUTPUT VOLTAGE
vs
COMMON-MODE INPUT VOLTAGE
500
VDD = 5 V
IOL = 5 mA
TA = 25°C
650
600
VOL – Low-Level Output Voltage – mV
VOL – Low-Level Output Voltage – mV
700
550
VID = – 100 mV
500
450
400
VID = – 1 V
350
300
450
1
2
3
0.5
1.5
2.5
3.5
VIC – Common-Mode Input Voltage – V
TA = 25°C
400
VID = – 100 mV
VID = – 1 V
350
VID = – 2.5 V
300
250
0
VDD = 10 V
IOL = 5 mA
4
0
2
1
9
10
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
125
3
5
6
7
8
Figure 15
Figure 14
LOW-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
LOW-LEVEL OUTPUT VOLTAGE
vs
DIFFERENTIAL INPUT VOLTAGE
900
800
IOL = 5 mA
VIC = | VID/2 |
TA = 25°C
700
VOL – Low-Level Output Voltage – mV
VOL – Low-Level Output Voltage – mV
4
VIC – Common-Mode Input Voltage – V
600
500
VDD = 5 V
400
300
VDD = 10 V
200
100
0
0
–2
–4
–6
–8
VID – Differential Input Voltage – V
– 10
800
700
IOL = 5 mA
VID = – 1 V
VIC = 0.5 V
VDD = 5 V
600
500
400
VDD = 10 V
300
200
100
0
– 75
– 50
Figure 17
Figure 16
† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
23
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS†
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
3
1
VOL – Low-Level Output Voltage – V
0.9
0.8
VOL – Low-Level Output Voltage – V
VID = – 1 V
VIC = 0.5 V
TA = 25°C
VDD = 5 V
0.7
VDD = 4 V
0.6
VDD = 3 V
0.5
0.4
0.3
0.2
0.1
VID = – 1 V
VIC = 0.5 V
TA = 25°C
2.5
2
VDD = 10 V
1.5
1
0.5
0
0
0
1
2
3
4
5
6
7
IOL – Low-Level Output Current – mA
0
8
5
10
15
20
25
IOL – Low-Level Output Current – mA
LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
vs
FREE-AIR TEMPERATURE
LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
vs
SUPPLY VOLTAGE
2000
2000
TA = – 55°C
1400
TA = 0°C
1200
TA = 25°C
1000
TA = 70°C
800
TA = 85°C
600
400
TA = 125°C
200
ÁÁ
ÁÁ
ÁÁ
0
2
4
6
8
10
12
VDD – Supply Voltage – V
14
AVD
AVD – Large-Signal Differential
Voltage Amplification – V/mV
AVD
AVD – Large-Signal Differential
Voltage Amplification – V/mV
TA = – 40°C
1600
0
RL = 1 MΩ
1800
RL = 1 MΩ
1800
16
1600
1400
VDD = 10 V
1200
1000
800
600
VDD = 5 V
400
200
0
– 75
– 50
Figure 20
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
Figure 21
† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
24
30
Figure 19
Figure 18
ÁÁ
ÁÁ
VDD = 16 V
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
125
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS†
10000
COMMON-MODE
INPUT VOLTAGE POSITIVE LIMIT
vs
SUPPLY VOLTAGE
VDD = 10 V
VIC = 5 V
See Note A
16
TA = 25°C
VIC – Common-Mode Input Voltage – V
I IB and I IO – Input Bias and Offset Currents – pA
INPUT BIAS CURRENT AND INPUT OFFSET CURRENT
vs
FREE-AIR TEMPERATURE
1000
IIB
100
IIO
10
1
0.1
25
45
65
85
105
125
TA – Free-Air Temperature – °C
NOTE A: The typical values of input bias current and input offset
current below 5 pA were determined mathematically.
14
12
10
8
6
4
2
0
0
2
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
140
120
TA = – 55°C
VO = VDD/2
No Load
100
I DD – Supply Current – µ A
I DD – Supply Current – µ A
160
TA = – 40°C
120
100
80
16
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
ÌÌÌÌ
ÌÌÌÌ
ÌÌÌÌ
ÌÌÌÌ
ÌÌÌÌ
ÌÌÌÌ
ÌÌÌÌ
ÌÌÌÌ
VO = VDD/2
No Load
14
Figure 23
Figure 22
180
4
6
8
10
12
VDD – Supply Voltage – V
TA = 0°C
TA = 25°C
TA = 70°C
TA = 125°C
60
40
80
VDD = 10 V
60
40
VDD = 5 V
20
20
0
0
2
4
6
8
10
12
VDD – Supply Voltage – V
14
16
0
– 75
– 50
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
125
Figure 25
Figure 24
† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
25
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS†
SLEW RATE
vs
FREE-AIR TEMPERATURE
SLEW RATE
vs
SUPPLY VOLTAGE
0.07
0.07
AV = 1
VIPP = 1 V
RL = 1 mΩ
CL = 20 pF
TA = 25°C
See Figure 1
0.05
0.06
SR – Slew Rate – V/ µs
SR – Slew Rate – V/ µs
0.06
0.04
0.03
0.02
0.05
VDD = 10 V
VIPP = 1 V
0.04
0.03
0.02
VDD = 5 V
VIPP = 1 V
VDD = 5 V
VIPP = 2.5 V
0.01
0.01
0.00
– 75
0.00
0
2
4
6
8
10
12
VDD – Supply Voltage – V
14
16
– 50
1.4
Normalized Slew Rate
1.2
1.1
VDD = 5 V
AV = 1
VIPP = 1 V
RL = 1 MΩ
CL = 20 pF
1
0.9
0.8
0.7
0.6
0.5
– 75
– 50
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
125
10
9
8
VDD = 10 V
7
TA = 125°C
TA = 25°C
TA = – 55°C
6
5
VDD = 5 V
4
3
2
RL = 1 MΩ
See Figure 1
1
0
0.1
1
10
f – Frequency – kHz
Figure 29
Figure 28
† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
26
125
MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE
vs
FREQUENCY
VO(PP) – Maximum Peak-to-Peak Output Voltage – V
NORMALIZED SLEW RATE
vs
FREE-AIR TEMPERATURE
VDD = 10 V
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
Figure 27
Figure 26
1.3
RL = 1 MΩ
CL = 20 pF
AV = 1
See Figure 1
VDD = 10 V
VIPP = 5.5 V
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
100
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS†
UNITY-GAIN BANDWIDTH
vs
SUPPLY VOLTAGE
UNITY-GAIN BANDWIDTH
vs
FREE-AIR TEMPERATURE
140
VDD = 5 V
VI = 10 mV
CL = 20 pF
See Figure 3
130
B1 – Unity-Gain Bandwidth – kHz
B1 – Unity-Gain Bandwidth – kHz
150
110
90
70
50
130
VI = 10 mV
CL = 20 pF
120
TA = 25°C
See Figure 3
110
100
90
80
70
60
30
– 75
50
– 50
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
0
125
2
4
6
8
10
12
VDD – Supply Voltage – V
Figure 30
14
16
Figure 31
LARGE-SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT
vs
FREQUENCY
107
VDD = 5 V
RL = 1 MΩ
TA = 25°C
ÁÁ
ÁÁ
ÁÁ
105
0°
104
30°
AVD
103
60°
102
90°
Phase Shift
AVD
A
VD – Large-Signal Differential
Voltage Amplification
106
Phase Shift
101
120°
1
150°
0.1
1
10
100
1k
10 k
f – Frequency – Hz
100 k
180°
1M
Figure 32
† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
27
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS†
LARGE-SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT
vs
FREQUENCY
10 7
VDD = 10 V
RL = 1 MΩ
TA = 25°C
Á
Á
Á
10 5
0°
10 4
30°
AVD
10 3
60°
10 2
90°
Phase Shift
AVD
A
VD – Large-Signal Differential
Voltage Amplification
10 6
Phase Shift
10 1
120°
1
150°
0.1
1
10
100
1k
10 k
f – Frequency – Hz
100 k
180°
1M
Figure 33
PHASE MARGIN
vs
FREE-AIR TEMPERATURE
PHASE MARGIN
vs
SUPPLY VOLTAGE
40°
42°
VI = 10 mV
CL = 20 pF
36°
TA = 25°C
See Figure 3
φ m – Phase Margin
φ m – Phase Margin
40°
VDD = 5 mV
VI = 10 mV
CL = 20 pF
See Figure 3
38°
38°
36°
34°
34°
32°
30°
28°
26°
24°
32°
22°
30°
0
2
4
6
8
10
12
VDD – Supply Voltage – V
14
16
20°
– 75
– 50
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
Figure 35
Figure 34
† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
28
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
125
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
PHASE MARGIN
vs
CAPACITIVE LOAD
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
37°
35°
φ m – Phase Margin
Vn – Equivalent Input Noise Voltage – nV/ Hz
200
VDD = 5 mV
VI = 10 mV
TA = 25°C
See Figure 3
33°
31°
29°
27°
25°
0
20
40
60
80
CL – Capacitive Load – pF
100
VDD = 5 V
RS = 20 Ω
TA = 25°C
See Figure 2
175
150
125
100
75
50
25
0
1
10
100
f – Frequency – Hz
1000
Figure 37
Figure 36
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
29
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
APPLICATION INFORMATION
single-supply operation
While the TLC27L4 and TLC27L9 perform well using dual power supplies (also called balanced or split
supplies), the design is optimized for single-supply operation. This design includes an input common-mode
voltage range that encompasses ground as well as an output voltage range that pulls down to ground. The
supply voltage range extends down to 3 V (C-suffix types), thus allowing operation with supply levels commonly
available for TTL and HCMOS; however, for maximum dynamic range, 16-V single-supply operation is
recommended.
Many single-supply applications require that a voltage be applied to one input to establish a reference level that
is above ground. A resistive voltage divider is usually sufficient to establish this reference level (see Figure 38).
The low input bias current of the TLC27L4 and TLC27L9 permits the use of very large resistive values to
implement the voltage divider, thus minimizing power consumption.
The TLC27L4 and TLC27L9 work well in conjunction with digital logic; however, when powering both linear
devices and digital logic from the same power supply, the following precautions are recommended:
1. Power the linear devices from separate bypassed supply lines (see Figure 39); otherwise, the linear
device supply rails can fluctuate due to voltage drops caused by high switching currents in the digital
logic.
2. Use proper bypass techniques to reduce the probability of noise-induced errors. Single capacitive
decoupling is often adequate; however, high-frequency applications may require RC decoupling.
VDD
R4
R1
R2
VI
VREF = VDD
–
+
VREF
R3
VO
C
0.01 µF
R3
R1 + R3
R4 + V
VO = (VREF – VI )
REF
R2
Figure 38. Inverting Amplifier With Voltage Reference
30
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
APPLICATION INFORMATION
single-supply operation (continued)
–
Output
Logic
Logic
Logic
Power
Supply
+
(a) COMMON SUPPLY RAILS
–
+
Output
Logic
Logic
Logic
Power
Supply
(b) SEPARATE BYPASSED SUPPLY RAILS (preferred)
Figure 39. Common Versus Separate Supply Rails
input characteristics
The TLC27L4 and TLC27L9 are specified with a minimum and a maximum input voltage that, if exceeded at
either input, could cause the device to malfunction. Exceeding this specified range is a common problem,
especially in single-supply operation. Note that the lower range limit includes the negative rail, while the upper
range limit is specified at VDD – 1 V at TA = 25°C and at VDD – 1.5 V at all other temperatures.
The use of the polysilicon-gate process and the careful input circuit design gives the TLC27L4 and TLC27L9
very good input offset voltage drift characteristics relative to conventional metal-gate processes. Offset voltage
drift in CMOS devices is highly influenced by threshold voltage shifts caused by polarization of the phosphorus
dopant implanted in the oxide. Placing the phosphorus dopant in a conductor (such as a polysilicon gate)
alleviates the polarization problem, thus reducing threshold voltage shifts by more than an order of magnitude.
The offset voltage drift with time has been calculated to be typically 0.1 µV/month, including the first month of
operation.
Because of the extremely high input impedance and resulting low bias current requirements, the TLC27L4 and
TLC27L9 are well suited for low-level signal processing; however, leakage currents on printed circuit boards
and sockets can easily exceed bias current requirements and cause a degradation in device performance. It
is good practice to include guard rings around inputs (similar to those of Figure 4 in the Parameter Measurement
Information section). These guards should be driven from a low-impedance source at the same voltage level
as the common-mode input (see Figure 40).
The inputs of any unused amplifiers should be tied to ground to avoid possible oscillation.
noise performance
The noise specifications in operational amplifier circuits are greatly dependent on the current in the first-stage
differential amplifier. The low input bias current requirements of the TLC27L4 and TLC27L9 result in a very low
noise current, which is insignificant in most applications. This feature makes the devices especially favorable
over bipolar devices when using values of circuit impedance greater than 50 kΩ, since bipolar devices exhibit
greater noise currents.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
31
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
APPLICATION INFORMATION
noise performance (continued)
–
–
VO
VI
+
+
(a) NONINVERTING AMPLIFIER
VO
+
–
VI
VI
VO
(c) UNITY-GAIN AMPLIFIER
(b) INVERTING AMPLIFIER
Figure 40. Guard-Ring Schemes
output characteristics
The output stage of the TLC27L4 and TLC27L9 is designed to sink and source relatively high amounts of current
(see typical characteristics). If the output is subjected to a short-circuit condition, this high current capability can
cause device damage under certain conditions. Output current capability increases with supply voltage.
All operating characteristics of the TLC27L4 and TLC27L9 were measured using a 20-pF load. The devices
drive higher capacitive loads; however, as output load capacitance increases, the resulting response pole
occurs at lower frequencies, thereby causing ringing, peaking, or even oscillation (see Figure 41). In many
cases, adding a small amount of resistance in series with the load capacitance alleviates the problem.
(b) CL = 260 pF, RL = NO LOAD
(a) CL = 20 pF, RL = NO LOAD
2.5 V
–
VO
+
VI
CL
– 2.5 V
(c) CL = 310 pF, RL = NO LOAD
(d) TEST CIRCUIT
Figure 41. Effect of Capacitive Loads and Test Circuit
32
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TA = 25°C
f = 1 kHz
VIPP = 1 V
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
APPLICATION INFORMATION
output characteristics (continued)
Although the TLC27L4 and TLC27L9 possess excellent high-level output voltage and current capability,
methods for boosting this capability are available, if needed. The simplest method involves the use of a pullup
resistor (Rb) connected from the output to the positive supply rail (see Figure 42). There are two disadvantages
to the use of this circuit. First, the NMOS pulldown transistor N4 (see equivalent schematic) must sink a
comparatively large amount of current. In this circuit, N4 behaves like a linear resistor with an on-resistance
between approximately 60 Ω and 180 Ω, depending on how hard the operational amplifier input is driven. With
very low values of RP, a voltage offset from 0 V at the output occurs. Second, pullup resistor RP acts as a drain
load to N4 and the gain of the operational amplifier is reduced at output voltage levels where N5 is not supplying
the output current.
C
VDD
RP
VO
–
IF
R2
R1
IL
RL
VDD – VO
IF + IL + IP
IP = Pullup current
required by the
operational amplifier
(typically 500 µA)
Rp =
Figure 42. Resistive Pullup to Increase VOH
+
IP
+
–
VI
VO
Figure 43. Compensation for
Input Capacitance
feedback
Operational amplifier circuits nearly always employ feedback, and since feedback is the first prerequisite for
oscillation, some caution is appropriate. Most oscillation problems result from driving capacitive loads
(discussed previously) and ignoring stray input capacitance. A small-value capacitor connected in parallel with
the feedback resistor is an effective remedy (see Figure 43). The value of this capacitor is optimized empirically.
electrostatic discharge protection
The TLC27L4 and TLC27L9 incorporate an internal electrostatic discharge (ESD) protection circuit that
prevents functional failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015.2. Care
should be exercised, however, when handling these devices, as exposure to ESD may result in the degradation
of the device parametric performance. The protection circuit also causes the input bias currents to be
temperature dependent and have the characteristics of a reverse-biased diode.
latch-up
Because CMOS devices are susceptible to latch-up due to their inherent parasitic thyristors, the TLC27L4 and
TLC27L9 inputs and outputs were designed to withstand – 100-mA surge currents without sustaining latch-up;
however, techniques should be used to reduce the chance of latch-up whenever possible. Internal protection
diodes should not, by design, be forward biased. Applied input and output voltage should not exceed the supply
voltage by more than 300 mV. Care should be exercised when using capacitive coupling on pulse generators.
Supply transients should be shunted by the use of decoupling capacitors (0.1 µF typical) located across the
supply rails as close to the device as possible.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
33
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
APPLICATION INFORMATION
latch-up (continued)
The current path established if latch-up occurs is usually between the positive supply rail and ground and can
be triggered by surges on the supply lines and/or voltages on either the output or inputs that exceed the supply
voltage. Once latch-up occurs, the current flow is limited only by the impedance of the power supply and the
forward resistance of the parasitic thyristor and usually results in the destruction of the device. The chance of
latch-up occurring increases with increasing temperature and supply voltages.
1/4
TLC27L4
+
VO1
500 kΩ
–
5V
500 kΩ
–
VO2
+
0.1 µF
1/4
TLC27L4
500 kΩ
500 kΩ
Figure 44. Multivibrator
100 kΩ
VDD
100 kΩ
Set
+
VO
100 kΩ
–
Reset
1/4
TLC27L4
33 kΩ
NOTE: VDD = 5 V to 16 V
Figure 45. Set /Reset Flip-Flop
34
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
APPLICATION INFORMATION
VDD
VI
+
1/4
TLC27L9
VO
–
90 kΩ
VDD
C
S1
SELECT
AV
S1
10
S2
100
A
C
S2
A
X1
TLC4066 1
B
1
X2
2
9 kΩ
Analog
Switch
2
B
1 kΩ
NOTE: VDD = 5 V to 12 V
Figure 46. Amplifier With Digital Gain Selection
10 kΩ
VDD
20 kΩ
–
VI
VO
1/4
TLC27L4
100 kΩ
+
NOTE: VDD = 5 V to 16 V
Figure 47. Full-Wave Rectifier
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
35
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
APPLICATION INFORMATION
0.016 µF
5V
VI
10 kΩ
10 kΩ
+
VO
0.016 µF
–
1/4
TLC27L4
NOTE: Normalized to FC = 1 kHz and RL = 10 kΩ
Figure 48. Two-Pole Low-Pass Butterworth Filter
R2
100 kΩ
VIA
VDD
R1
10 kΩ
+
VO
–
VIB
R1
10 kΩ
1/4
TLC27L9
R2
100 kΩ
ǒ
Ǔ
NOTE: VDD = 5 V to 16 V
R2 V
V
V
IA
O
R1 IB
+
*
Figure 49. Difference Amplifier
36
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright  1998, Texas Instruments Incorporated