TI TLC251ACD

TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
D
D
D
D
D
Wide Range of Supply Voltages
1.4 V to 16 V
True Single-Supply Operation
Common-Mode Input Voltage Range
Includes the Negative Rail
Low Noise . . . 30 nV/√Hz Typ at 1 kHz
(High Bias)
ESD Protection Exceeds 2000 V Per
MIL-STD-833C, Method 3015.1
D OR P PACKAGE
(TOP VIEW)
OFFSET N1
IN –
IN +
VDD – /GND
1
8
2
7
3
6
4
5
BIAS SELECT
VDD
OUT
OFFSET N2
symbol
description
BIAS SELECT
The TLC251C, TLC251AC, and TLC251BC are
low-cost, low-power programmable operational
+
IN +
amplifiers designed to operate with single or dual
OUT
IN –
supplies. Unlike traditional metal-gate CMOS
–
operational amplifiers, these devices utilize Texas
Instruments silicon-gate LinCMOS process,
OFFSET N1
giving them stable input offset voltages without
OFFSET N2
sacrificing the advantages of metal-gate CMOS.
This series of parts is available in selected grades of input offset voltage and can be nulled with one external
potentiometer. Because the input common-mode range extends to the negative rail and the power consumption
is extremely low, this family is ideally suited for battery-powered or energy-conserving applications. A
bias-select pin can be used to program one of three ac performance and power-dissipation levels to suit the
application. The series features operation down to a 1.4-V supply and is stable at unity gain.
These devices have internal electrostatic-discharge (ESD) protection circuits that prevent catastrophic failures
at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015.1. However, care should be exercised
in handling these devices as exposure to ESD may result in a degradation of the device parametric
performance.
Because of the extremely high input impedance and low input bias and offset currents, applications for the
TLC251C series include many areas that have previously been limited to BIFET and NFET product types. Any
circuit using high-impedance elements and requiring small offset errors is a good candidate for cost-effective
use of these devices. Many features associated with bipolar technology are available with LinCMOS
operational amplifiers without the power penalties of traditional bipolar devices. Remote and inaccessible
equipment applications are possible using the low-voltage and low-power capabilities of the TLC251C series.
In addition, by driving the bias-select input with a logic signal from a microprocessor, these operational amplifiers
can have software-controlled performance and power consumption. The TLC251C series is well suited to solve
the difficult problems associated with single battery and solar cell-powered applications.
The TLC251C series is characterized for operation from 0°C to 70°C.
AVAILABLE OPTIONS
TA
VIOmax
AT 25°C
0°C to 70°C
10 mV
5 mV
2 mV
PACKAGED DEVICES
SMALL OUTLINE
(D)
TLC251CD
TLC251ACD
TLC251BCD
PLASTIC DIP
(P)
TLC251CP
TLC251ACP
TLC251BCP
CHIP FORM
(Y)
TLC251Y
—
—
The D package is available taped and reeled. Add the suffix R to the device type (e.g., TLC251CDR). Chips are
tested at 25°C.
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
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
schematic
VDD
7
Current
Control
IN +
IN –
3
ESDProtective
Network
2
ESDProtective
Network
ESDProtective
Network
8 BIAS
SELECT
6
OFFSET
N1
1
OFFSET
N2
5
VDD – /GND
2
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
OUT
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
TLC251Y chip information
These chips, properly assembled, display characteristics similar to the TLC251C. 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
(2)
VDD
(1)
(8)
(7)
BIAS SELECT
IN +
(8)
(3)
(2)
IN –
OFFSET N1
OFFSET N2
48
(7)
+
(6)
OUT
–
(1)
(5)
(4)
VDD – /GND
CHIP THICKNESS: 15 TYPICAL
BONDING PADS: 4 × 4 MINIMUM
TJMAX = 150°C
(3)
(4)
(5)
(6)
TOLERANCES ARE ± 10%.
ALL DIMENSIONS ARE IN MILS.
55
PIN (4) IS INTERNALLY CONNECTED
TO BACKSIDE OF CHIP.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V
Input voltage range, VI (any input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 18 V
Duration of short circuit at (or below) 25°C free-air temperature (see Note 3) . . . . . . . . . . . . . . . . . . unlimited
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°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 VDD – /GND.
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 the maximum dissipation
rating is not exceeded.
DISSIPATION RATING TABLE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
D
725 mW
5.8 mW/°C
464 mW
P
1000 mW
8.0 mW/°C
640 mW
PACKAGE
recommended operating conditions
MIN
Supply voltage, VDD
Common mode input voltage,
Common-mode
voltage VIC
VDD = 1.4 V
VDD = 5 V
VDD = 10 V
VDD = 16 V
Operating free-air temperature, TA
1.4
16
0
0.2
– 0.2
4
– 0.2
9
– 0.2
14
0
70
UNIT
V
V
°C
See Application
Information
Bias-select voltage
4
MAX
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
HIGH-BIAS MODE
electrical characteristics at specified free-air temperature
TLC251C, TLC251AC, TLC251BC
TEST
CONDITIONS
PARAMETER
TA†
VDD = 5 V
TYP
MAX
MIN
25°C
TLC251C
VIO
Input offset voltage
TLC251AC
VO = 1
1.4
4V
V,
VIC = 0 V,,
RS = 50 Ω,
RL = 10 kΩ
TLC251BC
αVIO
Average temperature coefficient of
input offset voltage
IIO
Input offset current (see Note 4)
IIB
Input bias current (see Note 4)
VICR
VOH
VOL
AVD
CMRR
Full range
Low-level output voltage
L
i
l differential
diff
ti l voltage
lt
Large-signal
am
lification
amplification
Common-mode rejection ratio
0.9
Full range
25°C
0.34
1.8
VO = VDD/2,,
VIC = VDD/2
25°C
0.1
70°C
7
VO = VDD/2,,
VIC = VDD/2
25°C
0.6
70°C
40
25°C
– 0.2
to
4
Full range
– 0.2
to
3.5
kΩ
RL = 10 kΩ,
See Note 6
VIC = VICRmin
0.9
10
5
6.5
2
0.39
3
µV/°C
0.1
300
7
300
0.7
600
50
– 0.2
to
9
600
– 0.3
to
9.2
pA
pA
V
– 0.2
to
8.5
V
25°C
3.2
3.8
8
8.5
0°C
3
3.8
7.8
8.5
70°C
3
3.8
7.8
8.4
V
25°C
0
50
0
50
0°C
0
50
0
50
0
50
0
50
70°C
mV
2
2
– 0.3
to
4.2
UNIT
12
5
3
25°C to
70°C
VID = – 100 mV,
V
IOL = 0
1.1
6.5
Full range
VID = 100 mV,
V
RL = 10 kΩ
10
12
25°C
Common-mode input voltage
g
range (see Note 5)
High-level output voltage
1.1
VDD = 10 V
TYP
MAX
MIN
25°C
5
23
10
36
0°C
4
27
7.5
42
70°C
4
20
7.5
32
25°C
65
80
65
85
0°C
60
84
60
88
70°C
60
85
60
88
25°C
65
95
65
95
0°C
60
94
60
94
70°C
60
96
60
mV
V/mV
dB
kSVR
Supply-voltage
S
l
lt
rejection
j ti ratio
ti
(∆VDD/∆VIO)
VDD = 5 V tto 10 V
V,
VO = 1
1.4
4V
II(SEL)
Input current (BIAS SELECT)
VI(SEL) = 0
25°C
– 1.4
675
1600
950
2000
Supply current
VO = VDD/2,
VIC = VDD/2,
N lload
d
No
25°C
IDD
0°C
775
1800
1125
2200
70°C
575
1300
750
1700
dB
96
µA
– 1.9
µA
† 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.
6. At VDD = 5 V, VO = 0.25 V to 2 V; at VDD = 10 V, VO = 1 V to 6 V.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
HIGH-BIAS MODE
operating characteristics, VDD = 5 V
PARAMETER
TEST CONDITIONS
TA
TLC251C, TLC251AC,
TLC251BC
MIN
VI(PP)
( )=1V
SR
Slew rate at unity gain
RL = 10 kΩ
kΩ,
CL = 20 pF
VI(PP)
( ) = 2.5 V
Vn
BOM
B1
φm
Equivalent input noise voltage
Maximum output-swing bandwidth
Unity-gain bandwidth
Phase margin
f = 1 kHz,
VO = VOH,
VI = 10 mV,
VI = 10 mV,
RS = 20 Ω
CL = 20 pF,
RL = 10 kΩ
CL = 20 pF
f = B1,
CL = 20 pF
TYP
25°C
3.6
0°C
4
70°C
3
25°C
2.9
0°C
3.1
70°C
2.5
25°C
25
25°C
320
0°C
340
70°C
260
25°C
1.7
0°C
2
70°C
1.3
25°C
46°
0°C
47°
70°C
44°
UNIT
MAX
V/µs
nV/√Hz
kHz
MHz
operating characteristics, VDD = 10 V
PARAMETER
TEST CONDITIONS
TA
TLC251C, TLC251AC,
TLC251BC
MIN
VI(PP)
( )=1V
SR
Slew rate at unity gain
RL = 10 kΩ
kΩ,
CL = 20 pF
VI(PP)
( ) = 5.5 V
Vn
BOM
B1
φm
6
Equivalent input noise voltage
Maximum output-swing bandwidth
Unity-gain bandwidth
Phase margin
f = 1 kHz,
VO = VOH,
VI = 10 mV,
VI = 10 mV,
RS = 20 Ω
CL = 20 pF,
RL = 10 kΩ
CL = 20 pF
f = B1,
POST OFFICE BOX 655303
CL = 20 pF
• DALLAS, TEXAS 75265
TYP
25°C
5.3
0°C
5.9
70°C
4.3
25°C
4.6
0°C
5.1
70°C
3.8
25°C
25
25°C
200
0°C
220
70°C
140
25°C
2.2
0°C
2.5
70°C
1.8
25°C
49°
0°C
50°
70°C
46°
UNIT
MAX
V/µs
nV/√Hz
kHz
MHz
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
MEDIUM-BIAS MODE
electrical characteristics at specified free-air temperature
TLC251C, TLC251AC, TLC251BC
TEST
CONDITIONS
PARAMETER
TA†
VDD = 5 V
TYP
MAX
MIN
25°C
TLC251C
VIO
Input offset voltage
TLC251AC
VO = 1
1.4
4V
V,
VIC = 0 V,,
RS = 50 Ω,
RL = 10 kΩ
TLC251BC
αVIO
Average temperature coefficient of
input offset voltage
IIO
Input offset current (see Note 4)
IIB
Input bias current (see Note 4)
VICR
VOH
VOL
AVD
CMRR
Full range
Low-level output voltage
L
i
l differential
diff
ti l voltage
lt
Large-signal
am
lification
amplification
Common-mode rejection ratio
0.9
Full range
25°C
0.34
1.7
VO = VDD/2,,
VIC = VDD/2
25°C
0.1
70°C
7
VO = VDD/2,,
VIC = VDD/2
25°C
0.6
70°C
40
25°C
– 0.2
to
4
Full range
– 0.2
to
3.5
kΩ
RL = 10 kΩ,
See Note 6
VIC = VICRmin
0.9
10
5
6.5
2
0.39
3
µV/°C
0.1
300
7
300
0.7
600
50
– 0.2
to
9
600
– 0.3
to
9.2
pA
pA
V
– 0.2
to
8.5
V
25°C
3.2
3.9
8
8.7
0°C
3
3.9
7.8
8.7
70°C
3
4
7.8
8.7
V
25°C
0
50
0
50
0°C
0
50
0
50
0
50
0
50
70°C
mV
2
2.1
– 0.3
to
4.2
UNIT
12
5
3
25°C to
70°C
VID = – 100 mV,
V
IOL = 0
1.1
6.5
Full range
VID = 100 mV,
V
RL = 10 kΩ
10
12
25°C
Common-mode input voltage
g
range (see Note 5)
High-level output voltage
1.1
VDD = 10 V
TYP
MAX
MIN
25°C
25
170
25
275
0°C
15
200
15
320
70°C
15
140
15
230
25°C
65
91
65
94
0°C
60
91
60
94
70°C
60
92
60
94
25°C
70
93
70
93
0°C
60
92
60
92
70°C
60
94
60
mV
V/mV
dB
kSVR
Supply-voltage
S
l
lt
rejection
j ti ratio
ti
(∆VDD/∆VIO)
VDD = 5 V tto 10 V
V,
VO = 1
1.4
4V
II(SEL)
Input current (BIAS SELECT)
VI(SEL) = VDD/2
25°C
– 130
105
280
143
300
Supply current
VO = VDD/2,
VIC = VDD/2,
N lload
d
No
25°C
IDD
0°C
125
320
173
400
70°C
85
220
110
280
dB
94
– 160
nA
µA
† 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.
6. At VDD = 5 V, VO = 0.25 V to 2 V; at VDD = 10 V, VO = 1 V to 6 V.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
MEDIUM-BIAS MODE
operating characteristics, VDD = 5 V
PARAMETER
TEST CONDITIONS
TA
TLC251C, TLC251AC,
TLC251BC
MIN
VI(PP)
( )=1V
SR
Slew rate at unity gain
RL = 100 kΩ
kΩ,
CL = 20 pF
VI(PP)
( ) = 2.5 V
Vn
BOM
B1
φm
Equivalent input noise voltage
Maximum output-swing bandwidth
Unity-gain bandwidth
Phase margin
RS = 20 Ω
f = 1 kHz,
VO = VOH,
CL = 20 pF,
VI = 10 mV,
RL = 100 kΩ
CL = 20 pF
VI = 10 mV,
f = B1,
CL = 20 pF
TYP
25°C
0.43
0°C
0.46
70°C
0.36
25°C
0.40
0°C
0.43
70°C
0.34
25°C
32
25°C
55
0°C
60
70°C
50
25°C
525
0°C
600
70°C
400
25°C
40°
0°C
41°
70°C
39°
UNIT
MAX
V/µs
nV/√Hz
kHz
kHz
operating characteristics, VDD = 10 V
PARAMETER
TEST CONDITIONS
TA
TLC251C, TLC251AC,
TLC251BC
MIN
VI(PP)
( )=1V
SR
Slew rate at unity gain
RL = 100 kΩ
kΩ,
CL = 20 pF
VI(PP)
( ) = 5.5 V
Vn
BOM
B1
φm
8
Equivalent input noise voltage
Maximum output-swing bandwidth
Unity-gain bandwidth
Phase margin
f = 1 kHz,
VO = VOH,
VI = 10 mV,
VI = 10 mV,
RS = 20 Ω
CL = 20 pF,
RL = 100 kΩ
CL = 20 pF
f = B1,
POST OFFICE BOX 655303
CL = 20 pF
• DALLAS, TEXAS 75265
TYP
25°C
0.62
0°C
0.67
70°C
0.51
25°C
0.56
0°C
0.61
70°C
0.46
25°C
32
25°C
35
0°C
40
70°C
30
25°C
635
0°C
710
70°C
510
25°C
43°
0°C
44°
70°C
42°
UNIT
MAX
V/µs
nV/√Hz
kHz
kHz
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
LOW-BIAS MODE
electrical characteristics at specified free-air temperature
TLC251C, TLC251AC, TLC251BC
TEST
CONDITIONS
PARAMETER
TA†
VDD = 5 V
TYP
MAX
MIN
25°C
TLC251C
VIO
Input offset voltage
TLC251AC
VO = 1
1.4
4V
V,
VIC = 0 V,,
RS = 50 Ω,
RL = 10 MΩ
TLC251BC
αVIO
Average temperature coefficient of
input offset voltage
IIO
Input offset current (see Note 4)
IIB
Input bias current (see Note 4)
VICR
VOH
VOL
AVD
CMRR
Full range
Low-level output voltage
L
i
l differential
diff
ti l voltage
lt
Large-signal
am
lification
amplification
Common-mode rejection ratio
0.9
Full range
25°C
0.24
1.1
VO = VDD/2,,
VIC = VDD/2
25°C
0.1
70°C
7
VO = VDD/2,,
VIC = VDD/2
25°C
0.6
70°C
40
25°C
– 0.2
to
4
Full range
– 0.2
to
3.5
MΩ
RL = 1 MΩ,
See Note 6
VIC = VICRmin
0.9
10
5
6.5
2
0.26
3
µV/°C
0.1
300
7
300
0.7
600
50
– 0.2
to
9
600
– 0.3
to
9.2
pA
pA
V
– 0.2
to
8.5
V
25°C
3.2
4.1
8
8.9
0°C
3
4.1
7.8
8.9
70°C
3
4.2
7.8
8.9
V
25°C
0
50
0
50
0°C
0
50
0
50
0
50
0
50
70°C
mV
2
1
– 0.3
to
4.2
UNIT
12
5
3
25°C to
70°C
VID = – 100 mV,
V
IOL = 0
1.1
6.5
Full range
VID = 100 mV,
V
RL = 1 MΩ
10
12
25°C
Common-mode input voltage
g
range (see Note 5)
High-level output voltage
1.1
VDD = 10 V
TYP
MAX
MIN
25°C
50
520
50
870
0°C
50
700
50
1030
70°C
50
380
50
660
25°C
65
94
65
97
0°C
60
95
60
97
70°C
60
95
60
97
25°C
70
97
70
97
0°C
60
97
60
97
70°C
60
98
60
98
mV
V/mV
dB
kSVR
Supply-voltage
S
l
lt
rejection
j ti ratio
ti
(∆VDD/∆VIO)
VDD = 5 V tto 10 V
V,
VO = 1
1.4
4V
II(SEL)
Input current (BIAS SELECT)
VI(SEL) = VDD
25°C
65
10
17
14
23
Supply current
VO = VDD/2,
VIC = VDD/2,
N lload
d
No
25°C
IDD
0°C
12
21
18
33
70°C
8
14
11
20
dB
95
nA
µA
† 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.
6. At VDD = 5 V, VO = 0.25 V to 2 V; at VDD = 10 V, VO = 1 V to 6 V.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
9
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
LOW-BIAS MODE
operating characteristics, VDD = 5 V
PARAMETER
TEST CONDITIONS
TA
TLC251C, TLC251AC,
TLC251BC
MIN
VI(PP)
( )=1V
SR
Slew rate at unity gain
RL = 1 MΩ,
MΩ
CL = 20 pF
VI(PP)
( ) = 2.5 V
Vn
BOM
B1
φm
Equivalent input noise voltage
Maximum output-swing bandwidth
Unity-gain bandwidth
Phase margin
f = 1 kHz,
VO = VOH,
VI = 10 mV,
VI = 10 mV,
RS = 20 Ω
CL = 20 pF,
RL = 1 MΩ
CL = 20 pF
f = B1,
CL = 20 pF
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
68
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, VDD = 10 V
PARAMETER
TEST CONDITIONS
TA
TLC251C, TLC251AC,
TLC251BC
MIN
VI(PP)
( )=1V
SR
Slew rate at unity gain
RL = 1 MΩ,
MΩ
CL = 20 pF
VI(PP)
( ) = 5.5 V
Vn
BOM
B1
φm
10
Equivalent input noise voltage
Maximum output-swing bandwidth
Unity-gain bandwidth
Phase margin
f = 1 kHz,
VO = VOH,
VI = 10 mV,
VI = 10 mV,
RS = 20 Ω
CL = 20 pF,
RL = 1 MΩ
CL = 20 pF
f = B1,
POST OFFICE BOX 655303
CL = 20 pF
• 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
68
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
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
electrical characteristics at specified free-air temperature, VDD = 1.4 V
TEST CONDITIONS†
PARAMETER
TA‡
BIAS
TLC251C, TLC251AC,
TLC251BC
MIN
25°C
TLC251C
VIO
Input offset
voltage
TLC251AC
Full range
2V
VO = 0
0.2
V,
25°C
RS = 50 Ω
Full range
25°C
TLC251BC
Full range
αVIO
Average temperature
coefficient of input offset
voltage
IIO
Input offset current
VO = 0
0.2
2V
IIB
Input bias current
VO = 0
0.2
2V
VICR
Common-mode input
voltage range
VOM
Peak output voltage
swing§
VID = 100 mV
AVD
Large-signal
differential
g
g
voltage amplification
mV
VO = 100 to 300 mV,
RS = 50 Ω
25°C
CMRR
Common-mode rejection
ratio
RS = 50 Ω,
VIC = VICRmin
VO = 0.2 V,
25°C
IDD
Supply current
2V
VO = 0
0.2
V,
No load
25°C
25°C to 70°C
25°C
Full range
25°C
Full range
TYP
10
Any
12
5
Any
6.5
mV
2
Any
3
Any
µV/°C
1
1
Any
300
1
Any
600
25°C
Any
0
to
0.2
25°C
Any
450
700
Low
20
10
60
pA
pA
V
High
Any
UNIT
MAX
mV
77
dB
Low
5
17
High
150
190
µA
† All characteristics are measured under open-loop conditions with zero common-mode input voltage unless otherwise specified. Unless otherwise
noted, an output load resistor is connected from the output to ground and has the following values: for low bias, RL = 1 MΩ, for medium bias,
RL = 100 kΩ, and for high bias, RL = 10 kΩ.
‡ Full range is 0°C to 70°C.
§ The output swings to the potential of VDD – /GND.
operating characteristics, VDD = 1.4 V, TA = 25°C
PARAMETER
TEST CONDITIONS
BIAS
TLC251C, TLC251AC,
TLC251BC
MIN
B1
Unity gain bandwidth
Unity-gain
CL = 100 pF
SR
Slew rate at unity gain
See Figure 1
Overshoot factor
See Figure 1
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TYP
Low
12
High
12
Low
0.001
High
0.1
Low
35%
High
30%
UNIT
MAX
kHz
V/µs
11
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
electrical characteristics, VDD = 5 V, TA = 25°C
TLC251Y
PARAMETER
TEST CONDITIONS
HIGH-BIAS
MODE
MIN
VO = 1.4 V,
VIC = 0 V,
RS = 50 Ω,
VIO
Input offset voltage
αVIO
Average temperature
coefficient of input
offset voltage
IIO
Input offset current
(see Note 4)
IIB
Input bias current
(see Note 4)
VICR
Common-mode input
voltage range
(see Note 5)
VOH
High-level output
voltage
VID = 100 mV,
RL†
VOL
Low-level output
voltage
VID = – 100 mV,
IOL = 0
AVD
Large-signal
differential voltage
amplification
VO = 0.25 V,
RL†
CMRR
Common-mode
rejection ratio
kSVR
MEDIUM-BIAS
MODE
TYP
MAX
1.1
10
MIN
LOW-BIAS
MODE
TYP
MAX
1.1
10
MIN
UNIT
TYP
MAX
1.1
10
mV
RL†
1.8
1.7
1.1
µV/°C
VO = VDD/2,
VIC = VDD/2
0.1
0.1
0.1
pA
VO = VDD/2,
VIC = VDD/2
0.6
0.6
0.6
pA
– 0.2
to
4
– 0.3
to
4.2
– 0.2
to
4
– 0.3
to
4.2
– 0.2
to
4
– 0.3
to
4.2
V
3.2
3.8
3.2
3.9
3.2
4.1
V
0
50
0
50
0
50
mV
5
23
25
170
50
480
V/mV
VIC = VICRmin
65
80
65
91
65
94
dB
Supply-voltage
rejection ratio
(∆VDD /∆VIO)
VDD = 5 V to 10 V,
VO = 1.4 V
65
95
70
93
70
97
dB
II(SEL)
Input current
(BIAS SELECT)
VI(SEL) = VDD/2
0.065
µA
IDD
Supply current
VO = VDD/2,
VIC = VDD/2,
No load
– 1.4
675
– 0.13
1600
105
280
10
† For high-bias mode, RL = 10 kΩ; for medium-bias mode, RL = 100 kΩ; and for low-bias mode, RL = 1 MΩ.
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
17
µA
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
operating characteristics, VDD = 5 V, TA = 25°C
TLC251Y
PARAMETER
HIGH-BIAS
MODE
TEST CONDITIONS
MIN
TYP
MEDIUM-BIAS
MODE
MAX
MIN
TYP
LOW-BIAS
MODE
MAX
MIN
TYP
UNIT
MAX
SR
Slew rate at
unity gain
RL†,
CL = 20 pF
VI(PP) = 1 V
VI(PP) = 2.5 V
3.6
0.43
0.03
2.9
0.40
0.03
Vn
Equivalent input
noise voltage
f = 1 kHz,
RS = 20 Ω
25
32
68
nV/√Hz
BOM
Maximum output
swing bandwidth
VO = VOH,
RL = 10 kΩ
CL = 20 pF,
320
55
4.5
kHz
B1
Unity-gain
bandwidth
VI = 10 mV,
CL = 20 pF
1700
525
65
kHz
φm
Phase margin
f = B1,
CL = 20 pF
VI = 10 mV,
46°
40°
34°
V/µs
† For high-bias mode, RL = 10 kΩ; for medium-bias mode, RL = 100 kΩ; and for low-bias mode, RL = 1 MΩ.
PARAMETER MEASUREMENT INFORMATION
IN –
–
IN +
+
–
Output
Output
Input
+
BIAS
Low
Medium
High
N1
CL = 100 pF
RL
N2
RL
1 MΩ
100 kΩ
10 kΩ
25 kΩ
GND
Figure 1. Unity-Gain Amplifier
Figure 2. Input Offset Voltage Null Circuit
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
IDD
Supply current
AVD
Large-signal differential voltage amplification
Phase shift
vs Bias-select voltage
vs Supply voltage
vs Free-air temperature
3
4
5
Low bias
vs Frequency
6
Medium bias
vs Frequency
7
High bias
vs Frequency
8
Low bias
vs Frequency
6
Medium bias
vs Frequency
7
High bias
vs Frequency
8
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
13
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
SUPPLY CURRENT
vs
BIAS-SELECT VOLTAGE
10000
10000
VO = VIC = 0.2 VDD
No Load
TA = 25°C
1000
I DD – Supply Current – µ A
I DD – Supply Current – µ A
VO = VIC = 0.2 VDD
No Load
TA = 25°C
VDD = 16 V
100
VDD = 4 V
VDD = 1.4 V
10
1
0.1
1000
Medium-Bias Versions
100
Low-Bias Versions
10
0
10
1
100
0
2
4
6
8
Figure 4
Figure 3
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
10000
VDD = 10 V
VIC = 0 V
VO = 2 V
No Load
High-Bias Versions
I DD – Supply Current – µ A
10
1000
Medium-Bias Versions
100
Low-Bias Versions
10
0
0
12
14
VDD – Supply Voltage – V
VB – Bias-Select Voltage – V
10
20
30
40
50
60
TA – Free-Air Temperature – °C
Figure 5
14
High-Bias Versions
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
70
80
16
18
20
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
LOW-BIAS LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
AND PHASE SHIFT
vs
FREQUENCY
VDD = 10 V
RL = 1 MΩ
TA = 25°C
106
105
0°
30°
AVD (left scale)
104
60°
103
90°
Phase Shift
(right scale)
102
120°
101
150°
1
180°
Phase Shift
A VD – Differential Voltage Amplification
107
0.1
0.1
1
10
100
1k
10 k
100 k
Frequency – Hz
Figure 6
MEDIUM-BIAS LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
AND PHASE SHIFT
vs
FREQUENCY
VDD = 10 V
RL = 100 kΩ
TA = 25°C
106
105
0°
30°
AVD (left scale)
104
60°
103
90°
Phase Shift
(right scale)
102
120°
101
150°
1
180°
Phase Shift
A VD – Differential Voltage Amplification
107
0.1
1
10
100
1k
10 k
100 k
1M
Frequency – Hz
Figure 7
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
15
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
HIGH-BIAS LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
AND PHASE SHIFT
vs
FREQUENCY
VDD = 10 V
RL = 10 kΩ
TA = 25°C
106
105
0°
30°
104
60°
Phase Shift (right scale)
103
90°
102
120°
Phase Shift
A VD – Differential Voltage Amplification
107
AVD (left scale)
101
150°
1
180°
0.1
10
100
1k
10 k
100 k
1M
10 M
Frequency – Hz
Figure 8
APPLICATION INFORMATION
latch-up avoidance
Junction-isolated CMOS circuits have an inherent parasitic PNPN structure that can function as an SCR. Under
certain conditions, this SCR may be triggered into a low-impedance state, resulting in excessive supply current.
To avoid such conditions, no voltage greater than 0.3 V beyond the supply rails should be applied to any pin.
In general, the operational amplifier supplies should be applied simultaneously with, or before, application of
any input signals.
16
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
TLC251, TLC251A, TLC251B, TLC251Y
LinCMOS PROGRAMMABLE
LOW-POWER OPERATIONAL AMPLIFIERS
SLOS001E – JULY 1983 – REVISED AUGUST 1994
APPLICATION INFORMATION
using BIAS SELECT
The TLC251 has a terminal called BIAS SELECT that allows the selection of one of three IDD conditions (10,
150, and 1000 µA typical). This allows the user to trade-off power and ac performance. As shown in the typical
supply current (IDD) versus supply voltage (VDD) curves (Figure 4), the IDD varies only slightly from 4 V to 16
V. Below 4 V, the IDD varies more significantly. Note that the IDD values in the medium- and low-bias modes at
VDD = 1.4 V are typically 2 µA, and in the high mode are typically 12 µA. The following table shows the
recommended BIAS SELECT connections at VDD = 10 V.
BIAS MODE
AC PERFORMANCE
BIAS SELECT
CONNECTION†
TYPICAL IDD‡
Low
Medium
High
Low
Medium
High
VDD
0.8 V to 9.2 V
Ground pin
10 µA
150 µA
1000 µA
† Bias selection may also be controlled by external circuitry to conserve power, etc.
For information regarding BIAS SELECT, see Figure 3 in the typical
characteristics curves.
‡ For IDD characteristics at voltages other than 10 V, see Figure 4 in the typical
characteristics curves.
output stage considerations
The amplifier’s output stage consists of a source-follower-connected pullup transistor and an open-drain
pulldown transistor. The high-level output voltage (VOH) is virtually independent of the IDD selection and
increases with higher values of VDD and reduced output loading. The low-level output voltage (VOL) decreases
with reduced output current and higher input common-mode voltage. With no load, VOL is essentially equal to
the potential of VDD – /GND.
input offset nulling
The TLC251C series offers external offset null control. Nulling may be achieved by adjusting a 25-kΩ
potentiometer connected between the offset null terminals with the wiper connected to the device VDD – /GND
pin as shown in Figure 2. The amount of nulling range varies with the bias selection. At an IDD setting of
1000 µA (high bias), the nulling range allows the maximum offset specified to be trimmed to zero. In low or
medium bias or when the amplifier is used below 4 V, total nulling may not be possible for all units.
supply configurations
Even though the TLC251C series is characterized for single-supply operation, it can be used effectively in a
split-supply configuration when the input common-mode voltage (VICR), output swing (VOL and VOH), and
supply voltage limits are not exceeded.
circuit layout precautions
The user is cautioned that whenever extremely high circuit impedances are used, care must be exercised in
layout, construction, board cleanliness, and supply filtering to avoid hum and noise pickup, as well as excessive
dc leakages.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
17
IMPORTANT NOTICE
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Copyright  1998, Texas Instruments Incorporated