ETC LT1058SW

LT1057/LT1058
Dual and Quad, JFET Input
Precision High Speed Op Amps
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FEATURES
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DESCRIPTIO
The LT ®1057 is a matched JFET input dual op amp in the
industry standard 8-pin configuration, featuring a
combination of outstanding high speed and precision
specifications. It replaces all the popular bipolar and JFET
input dual op amps. In particular, the LT1057 upgrades the
performance of systems using the LF412A and OP-215
JFET input duals.
14V/µs Slew Rate: 10V/µs Min
5MHz Gain-Bandwidth Product
Fast Settling Time: 1.3µs to 0.02%
150µV Offset Voltage (LT1057): 450µV Max
180µV Offset Voltage (LT1058): 600µV Max
2µV/°C VOS Drift: 7µV/°C Max
50pA Bias Current at 70°C
Low Voltage Noise:
13nV/√Hz at 1kHz
26nV/√Hz at 10Hz
The LT1058 is the lowest offset quad JFET input
operational amplifier in the standard 14-pin configuration.
It offers significant accuracy improvement over presently
available JFET input quad operational amplifiers. The
LT1058 can replace four single precision JFET input op
amps, while saving board space, power dissipation and
cost.
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APPLICATIO S
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Precision, High Speed Instrumentation
Fast, Precision Sample-and-Hold
Logarithmic Amplifiers
D/A Output Amplifiers
Photodiode Amplifiers
Voltage-to-Frequency Converters
Frequency-to-Voltage Converters
Both the LT1057 and LT1058 are available in the plastic
PDIP package and the surface mount SO package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
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TYPICAL APPLICATIO
Current Output, High Speed, High Input Impedance
Instrumentation Amplifier
Distribution of Offset Voltage
(All Packages, LT1057 and LT1058)
25
+
1/4
LT1058
2
1
–
4.7k
9.1k
5
–
1/4
LT1058
V1
12
1/4
LT1058
14
4.7k
7.5k
+
7
+
RX
IOUT
+
500Ω*
–
IOUT = 2(V1 – V2)
RX
7.5k
6
13
VS = ±15V
TA = 25°C
20
7.5k
8
1/4
LT1058
–
PERCENT OF UNITS
V2
3
LT1057: 610 OP AMPS
LT1058: 520 OP AMPS
1130 OP AMPS
TESTED
15
10
10
5
9
0
–1.0
6.8k
1k**
–0.6
0.6
–0.2 0 0.2
INPUT OFFSET VOLTAGE (mV)
1.0
LT1057/1058 • TA02
*GAIN ADJUST
**COMMON MODE REJECTION ADJUST
BANDWIDTH ≈ 2MHz
LT1057/1058 • TA01
10578fa
1
LT1057/LT1058
W W
W
AXI U
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ABSOLUTE
RATI GS
(Note 1)
Supply Voltage ...................................................... ± 20V
Differential Input Voltage ....................................... ± 40V
Input Voltage ......................................................... ± 20V
Output Short-Circuit Duration .......................... Indefinite
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
Operating Temperature Range
LT1057AM/LT1057M/
LT1058AM/LT1058M (OBSOLETE)...– 55°C to 125°C
LT1057AC/LT1057C/LT1057S
LT1058AC/LT1058C/LT1058S ................ 0°C to 70°C
LT1057I ...................................... –40°C ≤ TA ≤ 85°C
U
U
W
PACKAGE/ORDER I FOR ATIO
TOP VIEW
16 NC
OUT A 1
NC 2
15 NC
– IN A 2
OUT A 3
14 V+
+IN A 3
– IN A 4
–
A
+
+IN A 5
B
V– 6
–
+
NC 7
13 OUT B
V+ 4
12 – IN B
+IN B 5
11 +IN B
– IN B 6
10 NC
OUT B 7
NC 8
9
–
A
+
+
–B
D
C
–
+
–
+
NC 1
SW PACKAGE
16-LEAD PLASTIC (WIDE) SO
16 OUT D
+IN A 1
8
–IN A
15 – IN D
V– 2
7
OUT A
14 +IN D
+IN B 3
6
V+
13 V–
–IN B 4
5
OUT B
12 +IN C
9
NC
LT1057SW
LT1057ISW
LT1058SW
LT1058ISW
ORDER PART
NUMBER
8
7 OUTPUT B
OUTPUT A 1
A
ORDER PART
NUMBER
1057
1057I
TOP VIEW
V+
TJMAX =150°C, θJA =90°C/W
ORDER PART
NUMBER
S8 PART MARKING
Please note that the LT1057S8/LT1057IS8 standard surface mount pinout differs from that of the LT1057 standard CERDIP/PDIP packages.
SW PACKAGE
16-LEAD PLASTIC (WIDE) SO
TJMAX = 150°C, θJA = 90°C/W
LT1057S8
LT1057IS8
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 200°C/W
11 –IN C
10 OUT C
NC 8
NC
ORDER PART
NUMBER
TOP VIEW
TOP VIEW
–IN A 2
–
LT1057AMH
LT1057MH
LT1057ACH
LT1057CH
B
+ +
–
6 –IN B
5 +IN B
+IN A 3
4
V – (CASE)
H PACKAGE 8-LEAD METAL CAN
OBSOLETE PACKAGE
Consider the N8 or S8 Package for Alternate Source
TOP VIEW
1
–IN A
2
+IN A
3
V+
4
+IN B
5
–IN B
6
OUTPUT B
7
14 OUTPUT D
–
A
+
– 13 –IN D
D
+ 12 +IN D
11 V–
+
–B
C
–
+
OUTPUT A
ORDER PART
NUMBER
ORDER PART
NUMBER
LT1058ACN
LT1058CN
LT1057ACN8
LT1057CN8
–IN C
8
OUTPUT C
N14 PACKAGE
14-LEAD PDIP
TJMAX = 110°C, θJA = 130°C/W
J14 PACKAGE 14-LEAD CERDIP
TJMAX = 150°C, θJA = 100°C/W
OUTPUT 1
–IN A 2
+IN A 3
10 +IN C
9
TOP VIEW
LT1058AMJ
LT1058MJ
LT1058ACJ
LT1058CJ
LT1057ACJ8
LT1057CJ8
LT1057AMJ8
LT1057MJ8
OBSOLETE PACKAGES
Consider the N8, S8 or N14 Package for Alternate Source
V– 4
–
A
+
B
–
+
8
V+
7
OUTPUT B
6
– IN B
5
+ IN B
N8 PACKAGE
8-LEAD PDIP
TJMAX = 100°C, θJA = 130°C/W
J8 PACKAGE 8-LEAD CERDIP
TJMAX = 150°C, θJA = 100°C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
10578fa
2
LT1057/LT1058
ELECTRICAL CHARACTERISTICS
VS = ± 15V, TA = 25°C, VCM = 0V unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
VOS
Input Offset Voltage
LT1057
LT1057 (S8 Package)
LT1058
LT1057AM/LT1058AM
LT1057AC/LT1058AC
MIN
TYP
MAX
LT1057M/LT1058M
LT1057C/LT1058C
MIN
TYP
MAX
150
450
180
600
200
220
250
800
1200
1000
µV
µV
µV
UNITS
lOS
Input Offset Current
Fully Warmed Up
3
40
4
50
pA
lB
Input Bias Current
Fully Warmed Up
±5
± 50
±7
± 75
pA
Input Resistance
Differential
Common Mode VCM = – 11V to 8V
Common Mode VCM = 8V to 11V
1012
1012
1011
1012
1012
1011
Ω
Ω
Ω
4
4
pF
Input Capacitance
en
Input Noise Voltage
0.1Hz to 10Hz,
en
Input Noise Voltage Density
fO = 10Hz
fO = 1kHz (Note 3)
26
13
22
1.5
4
in
Input Noise Current Density
fO = 10Hz, 1kHz (Note 4)
AVOL
Large-Signal Voltage Gain
VO = ±10V, RL = 2k
VO = ±10V, RL = 1k
LT1057
LT1058
Input Voltage Range
2.0
2.4
2.1
2.5
µVP-P
µVP-P
28
14
24
nV/√Hz
nV/√Hz
1.8
6
fA/√Hz
150
120
350
250
100
80
300
220
±10.5
14.3
– 11.5
±10.5
14.3
– 11.5
Common Mode Rejection Ratio
PSRR
Power Supply Rejection Ratio
VS = ±10V to ±18V
88
103
86
102
dB
VOUT
Output Voltage Swing
RL = 2k
±12
±13
±12
±13
V
SR
Slew Rate
10
14
8
13
V/µs
GBW
Gain-Bandwidth Product
3.5
5
3
5
MHz
IS
Supply Current Per Amplifier
f = 1MHz (Note 6)
86
84
1.6
DC to 5kHz, VIN = ±10V
100
98
V
V
CMRR
Channel Separation
LT1057
LT1058
V/mV
V/mV
82
80
2.5
98
96
1.7
132
2.8
130
dB
dB
mA
dB
(LT1057/LT1058 SW Package Only), VS = ± 15V, TA = 25°C, VCM = 0V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
VOS
Input Offset Voltage
LT1057
LT1058
lOS
Input Offset Current
lB
Input Bias Current
Input Resistance –Differential
–Common-Mode
MIN
TYP
MAX
UNITS
0.3
0.35
2
2.5
mV
Fully Warmed Up
5
50
pA
Fully Warmed Up
±10
±100
pA
0.4
0.4
0.05
TΩ
VCM = – 11V to 8V
VCM = 8V to 11V
4
pF
Input Capacitance
en
Input Noise Voltage
0.1Hz to 10Hz
en
Input Noise Voltage Density
fO = 10Hz
fO = 1kHz
LT1057
LT1058
2.1
2.5
26
13
µVP-P
nV/√Hz
10578fa
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LT1057/LT1058
ELECTRICAL CHARACTERISTICS
(LT1057/LT1058 SW Package Only), VS = ± 15V, TA = 25°C, VCM = 0V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
in
Input Noise Current Density
fO = 10Hz, 1kHz
AVOL
Large-Signal Voltage Gain
VO = ±10V
MIN
RL = 2k
RL = 1k
Input Voltage Range
MAX
UNITS
1.8
fA/√Hz
100
50
300
220
V/mV
±10.5
14.3
– 11.5
V
82
80
98
98
dB
CMRR
Common-Mode Rejection Ratio
VCM = ±15V
PSRR
Power Supply Rejection Ratio
VS = ±10V to ±18V
86
102
dB
VOUT
Output Voltage Swing
RL = 2k
±12
±13
V
SR
Slew Rate
8
13
V/µs
GBW
Gain-Bandwidth Product
3
5
MHz
IS
Supply Current Per Amplifier
Channel Seperation
LT1057
LT1058
TYP
f = 1MHz (Note 6)
1.7
DC to 5kHz, VIN =±10V
2.8
mA
130
dB
The ● denotes the specifications which apply over the temperature range of 0°C ≤ TA ≤ 70°C or -40°C ≤ TA ≤ 85°C (LT1057IS8),
otherwise specifications are TA = 25°C. VS = ±15V, VCM = 0V, unless noted.
MAX
MAX
UNITS
330
500
400
400
1400
2300
1900
1800
µV
µV
µV
µV
2.3
4
4
4.5
3
5
12
16
16
16
15
22
µV/°C
µV/°C
µV/°C
µV/°C
µV/°C
µV/°C
PARAMETER
CONDITIONS
VOS
Input Offset Voltage
LT1057
LT1057IS8
LT1057S8
LT1058
●
●
●
●
250
800
300
1200
LT1057 H/J8 Package
N8 Package
LT1057S8 (Note 5)
LT1057IS8 (Note 5)
LT1058 J Package (Note 5)
N Package (Note 5)
●
●
●
●
●
●
1.8
3
7
10
2.5
4
10
15
Warmed Up, TA = 70°C
LT1057IS8
18
150
20
35
250
600
pA
●
Warmed Up, TA = 70°C
LT1057IS8
± 50
± 250
± 60
± 100
± 350
± 900
pA
●
IOS
IB
lnput Offset Current
Input Bias Current
MIN
LT1057C
LT1058C
TYP
SYMBOL
Average Temperature
Coefficient of Input
(Offset Voltage)
MIN
LT1057AC
LT1058AC
TYP
AVOL
Large-Signal Voltage Gain
VO = ± 10V, RL = 2k
●
70
220
50
200
V/mV
CMRR
Common Mode Rejection Ratio
VCM = ± 10.4V
●
85
98
80
96
dB
PSRR
VOUT
Power Supply Rejection Ratio
Output Voltage Swing
VS = ± 10V to ± 18V
RL = 2k
●
87
±12
102
±12.8
84
±12
100
±12.8
dB
V
IS
Supply Current Per Amplifier
●
2.8
●
TA = 70°C
1.4
3.2
1.5
mA
mA
10578fa
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LT1057/LT1058
ELECTRICAL CHARACTERISTICS (LT1057/LT1058 SW Package Only.) The ● denotes specifications which
apply over the temperature range of VS = ± 15V, VCM = 0V, 0°C ≤ TA ≤ 70°C (LT1057SW, LT1058SW) or –40°C ≤ TA ≤ 85°C
(LT1057ISW, LT1058ISW), unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
VOS
Input Offset Voltage
LT1057
LT1058S
LT1058IS
MIN
Average Temperature Coefficient of
Input Offset Voltage
TYP
MAX
UNITS
●
●
●
0.5
0.6
0.7
2.5
3.0
4.0
mV
●
5
µV/°C
lOS
Input Offset Current
Warmed Up, TA = 70°C
Warmed Up, TA = 85°C
20
35
250
400
pA
lB
Input Bias Current
Warmed Up, TA = 70°C
Warmed Up, TA = 85°C
± 60
± 100
± 400
± 700
pA
AVOL
Large Signal Volage Gain
VO = ± 10V, RL = 2k
LT1057
LT1058
●
●
50
40
200
200
mV
CMRR
Common-Mode Rejection Ratio
VCM = ± 10.5V
LT1057
LT1058
●
●
80
78
96
96
dB
PSRR
Power Supply Rejection Ratio
VS = ± 10V to ± 18V
LT1057
LT1058
●
●
Output Voltage Swing
RL = 2k
100
100
± 12.8
dB
VOUT
84
82
± 12
●
V
The ● denotes specifications which apply over the temperature range of – 55°C ≤ TA ≤ 125°C, VS = ±15V, VCM = 0V,
unless otherwise noted.
MAX
MAX
UNITS
µV
µV
PARAMETER
CONDITIONS
VOS
lnput Offset Voltage
LT1057
LT1058
●
●
300
380
1100
1600
400
550
2000
2500
Average Temperature Coefficient
of Input Offset Voltage
LT1057
LT1058 (Note 5)
●
●
2.0
2.5
7
10
2.5
3
12
15
µV/°C
µV/°C
IOS
lnput Offset Current
Warmed Up, TA = 125°C
0.15
2
0.2
3
nA
IB
Input Bias Current
Warmed Up, TA = 125°C
± 0.6
± 4.5
± 0.7
±6
nA
AVOL
Large-Signal Voltage Gain
VO = ± 10V, RL = 2k
●
40
120
30
110
V/mV
CMRR
Common Mode Rejection Ratio
VCM = ± 10.4V
●
84
97
80
95
dB
PSRR
Power Supply Rejection Ratio
VS = ± 10V to ± 17V
●
86
100
83
98
dB
VOUT
Output Voltage Swing
RL = 2k
●
± 12
± 12.7
± 12
± 12.6
V
IS
Supply Current Per Amplifier
TA = 125°C
1.25
1.9
MIN
LT1057M
LT1058M
TYP
SYMBOL
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Typical parameters are defined as the 60% yield of distributions of
individual amplifiers; (i.e., out of 100 LT1058s or, 100 LT1057s, typically
240 op amps, or 120 for the LT1057, will be better than the indicated
specification).
Note 3: This parameter is tested on a sample basis only.
MIN
LT1057AM
LT1058AM
TYP
1.3
2.2
mA
Note 4: Current noise is calculated from the formula:
in = (2qlb)1/2
where q = 1.6 • 10– 19 coulomb. The noise of source resistors up
to1G swamps the contribution of current noise.
Note 5: This parameter is not 100% tested.
Note 6: Gain-bandwidth product is not tested. It is guaranteed by
design and by inference from the slew rate measurement.
10578fa
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LT1057/LT1058
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current Over
the Common-Mode Range
BIAS CURRENT
30
OFFSET CURRENT
10
25
75
100
50
AMBIENT TEMPERATURE (°C)
0
INPUT BIAS CURRENT, TA = 125°C (nA)
125
140
1.2
120
1.0
100
TA = 125°C
0.8
60
0.4
40
20
0.2
TA = 25°C
0
0
–5
–10
10
5
COMMON MODE INPUT VOLTAGE (V)
Distribution of Offset Voltage Drift
with Temperature
(Plastic N Package)
120
LT1057J: 130 OP AMPS
LT1058J: 136 OP AMPS
368 OP AMPS
100
100
80
NUMBER OF UNITS
96
70
60
40
32
80
70
60
60
40
16
2
4 5
22
20
4
1 UNIT EACH AT
–19, –16, –13
14, 16µV/°C
31
27
11
9
4
2 1
0
3
6
–12 –9 –6 –3
9
0
12
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
5
LT1057 N, LT1058 J PACKAGE
LT1057 H PACKAGE
20
0
1
3
4
2
TIME AFTER POWER ON (MINUTES)
5
Long-Term Drift of
Representative Units
VS = ±15V
TA = 25°C
30
20
10
0
–10
–20
–30
–40
–50
0
1
3
2
TIME (MONTHS)
4
5
LT1057/1058 • TPC06
LT1057/1058 • TPC05
Voltage Noise vs Frequency
0.1Hz to 10Hz Noise
Voltage Gain vs Temperature
1000
VS = ±15V
TA = 25°C
VS = ±15V
TA = 25°C
RL = 2k
50
30
20
VOLTAGE GAIN (V/mV)
NOISE VOLTAGE (1µV/DIV)
RMS VOLTAGE NOISE DENSITY (nV/√Hz)
40
LT1057/1058 • TPC03
3
1000
70
LT1058 N PACKAGE
LT1057 J PACKAGE
0
3
6
9
–12 –9 – 6 – 3
0
12
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
LT1057/1058 • TPC04
60
40
44
24
20
65
80
50
LT1057N: 180 OP AMPS
LT1058N: 176 OP AMPS
356 OP AMPS
VS = ±15V
VS = ± 15V
TA = 25°C
0
15
Distribution of Offset Voltage Drift
with Temperature
(H and J Package)
112 LT1057H: 102 OP AMPS
0
–20
– 0.2
–15
LT1057/1058 • TPC02
VS = ±15V
80
0.6
LT1057/1058 • TPC01
120
NUMBER OF UNITS
TA = 70°C
100
OFFSET VOLTAGE CHANGE (µV)
INPUT BIAS AND OFFSET CURRENT (pA)
100
VS = ±15V
1.4
INPUT BIAS CURRENT, TA = 25°C TO 70°C (pA)
VS = ±15V
VCM = 0V
WARMED UP
300
3
Warm-Up Drift
160
1.6
1000
CHANGE IN OFFSET VOLTAGE (µV)
Input Bias and Offset Currents
vs Temperature
VS = ±15V
V0 = ±10V
300
RL = 1k
100
30
1/f CORNER = 28Hz
10
3
10
30
100 300 1000 3000 10000
FREQUENCY (Hz)
LT1057/1058 • TPC07
0
2
6
4
TIME (SECONDS)
8
10
LT1057/1058 • TPC08
10
–75
25
–25
75
TEMPERATURE (°C)
125
LT1057/1058 • TPC09
10578fa
6
LT1057/LT1058
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Slew Rate, Gain-Bandwidth
Product vs Temperature
30
Undistorted Output Swing vs
Frequency
10
VS = ±15V
SLEW RATE (V/µs)
5V/DIV
AV = +1
CL = 100pF
SLEW FALL
20
6
GBW
4
SLEW RISE
10
2
0.5µs/DIV
0
–50 –25
50
25
75
0
TEMPERATURE (°C)
100
GAIN BANDWIDTH PRODUCT (MHz)
8
30
PEAK-TO-PEAK OUTPUT SWING (V)
Large-Signal Response
VS = ±15V
TA = 25°C
24
18
12
6
0
100k
125
1M
FREQUENCY (Hz)
LT1057/1058 • TPC11
LT1057/1058 • TPC10
Small-Signal Response
Gain, Phase Shift vs Frequency
140
Capacitive Load Handling
80
100
60
140
GAIN
PHASE
20
160
VS = ±15V
0 TA = 25°C
CL = 10pF
–20
1
10 100
0.2µs/DIV
60
OVERSHOOT (%)
GAIN (dB)
20mV/DIV
80
PHASE SHIFT (DEGREES)
120
PHASE MARGIN = 58°
40
AV = +1
CL = 100pF
VS = ±15V
TA = 25°C
70
120
100
50
AV = –1
40
AV = +1
30
20
AV = 10
10
0
180
1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
10
100
1000
CAPACITIVE LOAD (pF)
Settling Time
Channel Separation vs Frequency
FROM LEFT TO RIGHT:
SETTLING TIME TO 10mV, 5mV, 2mV,
1mV, 0.5mV
0
0.5mV
–5
10mV
VS = ±15V
TA = 25°C
0
1
2
140
SETTLING TIME (µs)
LT1057/1058 • TPC14
LIMITED BY
THERMAL
INTERACTION
AT DC = 132dB
120
RS = 10Ω
RS = 1k
LIMITED BY
PIN-TO-PIN
CAPACITANCE
100
VS = ±15V
TA = 25°C
VIN = 20VP-P TO 5kHz
RL = 2k
80
60
3
100
OUTPUT IMPEDANCE (Ω)
0.5mV
CHANNEL SEPARATION (dB)
OUTPUT VOLTAGE SWING FROM 0V (V)
10mV
–10
Output Impedance vs Frequency
160
5
1
10
100
1k
10k
FREQUENCY (Hz)
10000
LT1057/1058 • TPC13
LT1057/1058 • TPC12
10
10M
VS = ±15V
TA = 25°C
AV = 100
10
AV = 10
1
AV = 1
100k
1M
LT1057/1058 • TPC15
0.1
1k
10k
100k
FREQUENCY (Hz)
10M
LT1057/1058 • TPC16
10578fa
7
LT1057/LT1058
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Common Mode Rejection Ratio
vs Frequency
15
VS = ±15V
TA = 25°C
80
CMRR (dB)
120
VS = ±10V TO ±17V FOR PSRR
VS = ±15V, VCM = ±10.5V FOR CMRR
14
COMMON MODE RANGE (V)
100
Common Mode and Power Supply
Rejections vs Temperature
60
40
20
13
12
CMRR, PSRR (dB)
120
Common Mode Range
vs Temperature
11
±10
–11
–12
110
PSRR
CMRR
100
–13
–14
0
10
100
1M
1k
10k 100k
FREQUENCY (Hz)
VS = ±15V
–15
50
–50
0
TEMPERATURE (°C)
10M
LT1057/1058 • TPC17
LT1057/1058 • TPC19
Supply Current
vs Temperature
140
Short-Circuit Current vs Time
(One Output Shorted to Ground)
50
3
120
100
POSITIVE
SUPPLY
80
NEGATIVE
SUPPLY
60
40
20
0
10
100
100k
10k
1k
FREQUENCY (Hz)
1M
10M
40
SHORT-CIRCUIT CURRENT (mA)
SUPPLY CURRENT PER AMPLIFIER (mA)
TA = 25°C
2
VS = ±15V
VS = ±10V
1
VS = ±15V
TA = –55°C
30
20
TA = 25°C
10
TA = 125°C
0
TA = 125°C
–10
TA = 25°C
–20
–30
TA = –55°C
–40
0
–50 –25
125
25
75
TEMPERATURE (°C)
–25
LT1057/1058 • TPC18
Power Supply Rejection Ratio
vs Frequency
POWER SUPPLY REJECTION RATIO (dB)
90
100
–50
50
25
75
0
TEMPERATURE (°C)
LT1057/1058 • TPC20
100
2
1
0
3
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
125
LT1057/1058 • TPC22
LT1057/1058 • TPC21
U
W
U U
APPLICATIO S I FOR ATIO
The LT1057 may be inserted directly in LF353, LF412,
LF442, TL072, TL082 and OP-215 sockets. The LT1058
plugs into LF347, LF444, TL074 and TL084 sockets. Of
course, all standard dual and quad bipolar op amps can
also be replaced by these devices.
with RS and RF in the kilohm range, this pole can create
excess phase shift and even oscillation. A small capacitor
(CF) in parallel with RF eliminates this problem. With
RS(CS + CIN) = RFCF, the effect of the feedback pole is
completely removed.
CF
High Speed Operation
When the feedback around the op amp is resistive (RF) a
pole will be created with RF, the source resistance and
capacitance (RS, CS), and the amplifier input capacitance
(CIN ≈ 4pF). In low closed loop gain configurations and
RF
–
CIN
RS
CS
OUTPUT
+
LT1057/LT1058 • AI01
10578fa
8
LT1057/LT1058
U
W
U U
APPLICATIO S I FOR ATIO
Settling time is measured in a test circuit which can
be found in the LT1055/LT1056 data sheet and in
Application Note 10.
Achieving Picoampere/Microvolt Performance
In order to realize the picoampere/microvolt level accuracy
of the LT1057/LT1058, proper care must be exercised. For
example, leakage currents in circuitry external to the op
amp can significantly degrade performance. High quality
insulation should be used (e.g., TeflonTM, Kel-F); cleaning
of all insulating surfaces to remove fluxes and other
residues will probably be required. Surface coating may be
necessary to provide a moisture barrier in high humidity
environments.
Board leakage can be minimized by encircling the input
circuitry with a guard ring operated at a potential close to
that of the inputs; in inverting configurations, the guard
ring should be tied to ground, in noninverting connections, to the inverting input. Guarding both sides of the
printed circuit board is required. Bulk leakage reduction
depends on the guard ring width.
The LT1057/LT1058 have the lowest offset voltage of
any dual and quad JFET input op amps available today.
However, the offset voltage and its drift with time and
temperature are still not as good as on the best bipolar
amplifiers (because the transconductance of FETs is
considerably lower than that of bipolar transistors).
Conversely, this lower transconductance is the main cause
of the significantly faster speed performance of FET input
op amps.
Offset voltage also changes somewhat with temperature
cycling. The AM grades show a typical 40µV hysteresis
(50µV on the M grades) when cycled over the – 55°C to
125°C temperature range. Temperature cycling from 0°C
to 70°C has a negligible (less than 20µV) hysteresis effect.
The offset voltage and drift performance are also affected
by packaging. In the plastic N package, the molding
compound is in direct contact with the chip, exerting
pressure on the surface. While NPN input transistors are
largely unaffected by this pressure, JFET device drift is
degraded. Consequently for best drift performance, as
shown in the Typical Performance Characteristics distribution plots, the J or H packages are recommended.
In applications where speed and picoampere bias currents
are not necessary, Linear Technology offers the bipolar
input, pin compatible LT1013 and LT1014 dual and quad
op amps. These devices have significantly better DC
specifications than any JFET input device.
Phase Reversal Protection
Most industry standard JFET input single, dual and quad
op amps (e.g., LF156, LF351, LF353, LF411, LF412,
OP-15, OP-16, OP-215, TL084) exhibit phase reversal at
the output when the negative common mode limit at the
input is exceeded (i.e., below – 12V with ± 15V supplies).
The photos below show a ± 16V sine wave input (A), the
response of an LF412A in the unity gain follower mode (B),
and the response of the LT1057/LT1058 (C).
The phase reversal of photo (B) can cause lock-up in servo
systems. The LT1057/LT1058 does not phase-reverse
due to a unique phase reversal protection circuit.
Teflon is a trademark of DuPont.
(A) ± 16V Sine Wave Input
(B) LF412A Output
(C) LT1057/LT1058 Output
All Photos 5V/Div Vertical Scale, 50µs/Div Horizontal Scale
10578fa
9
LT1057/LT1058
U
TYPICAL APPLICATIO S
Low Noise, Wideband, Gain = 100 Amplifier with High Input Impedance
4.3k
470Ω
–
2.4k
1/4
LT1058
7.5k
500Ω
+
4.3k
2.4k
–
470Ω
1/4
LT1058
–
OUTPUT
+
1/4
LT1058
+
INPUT
4.3k
470Ω
2.4k
–3dB BANDWIDTH = 350kHZ
GAIN-BANDWIDTH PRODUCT = 35MHz
WIDEBAND NOISE = 13nV/√Hz = 7.5nV/√Hz REFERRED TO INPUT
√3
RMS NOISE DC TO FULL BANDWIDTH = 7µV
–
1/4
LT1058
+
LT1057/1058 • A01
Wideband, High Input Impedance, Gain = 1000 Amplifier
1k
4.7k
1k
–
–
1/4
LT1058
INPUT
4.7k
1/4
LT1058
+
1/4
LT1058
+
+
1/4
LT1058
+
–
OUTPUT
–
4.7k
4.7k
1k
1k
100Ω
–3dB BANDWIDTH = 400kHz
GAIN-BANDWIDTH PRODUCT = 400MHz
WIDEBAND NOISE = 13nV/√Hz REFERRED TO INPUT
LT1057/1058 • A02
Low Distortion, Crystal Stabilized Oscillator
130Ω
CRYSTAL
20kHz
NT CUT
COMMON MODE
SUPPRESSION
–
1/2
LT1057
100k
–
0.01µF
100Ω
15pF
+
#327
LAMP
1VRMS OUT
20kHz
0.005%
DISTORTION
OSCILLATOR
1/2
LT1057
+
LT1057/1058 • A03
10578fa
10
LT1057/LT1058
U
TYPICAL APPLICATIO S
Fast, Precision Bridge Amplifier
330pF
–
10k
1/2
LT1057
+
10k
1k
330pF
–
RLOAD
1/2
LT1057
LT1010
LT1010
+
INPUT
SLEW RATE = 14V/µs
OUTPUT CURRENT TO LOAD = 150mA
LOAD CAPACITANCE: UP TO 1µF
LT1057/1058 • A04
Analog Divider
80.6k*
20k
1µF
LTC1043
7
–5V
6
LT1004
1.2V
12
5V
LTC1043
1k
8
+
B INPUT
5
1µF
–
1/2
LT1057
OUTPUT = A
B
+
2
–5V
0.001
POLYSTYRENE
11
13
1µF
75k*
14
16
–
A INPUT
1/2
LT1057
+
30pF
22k
330k
2N2907
1µF
* 1% FILM
–5V
LT1057/1058 • A05
10578fa
11
LT1057/LT1058
U
TYPICAL APPLICATIO S
Bipolar Input (AC) V/F Converter
LTC1043
1k
–5V
6
LT1004
2.5V
2
5
0.1µF
16
18
1M*
15
3
1M*
0.01
POLYSTYRENE
1/4
LT1058
1µF
INPUT
±1V
+
–
2N3906
+
5V
36.5k*
–
10k
DATA
OUTPUT
0kHz TO 1kHz
1/4
LT1058
–
1M*
1/4
LT1058
1M*
10k
+
22k
150pF
10k
–5V
0.1µF
–
1/4
LT1058
*1% FILM
MATCH 1M RESISTORS TO 0.05%
SIGN
BIT
+
LT1057/1058 • A06
12-Bit A/D Converter
10k
0.001µF
–
CLOCK
1/4
LT1058
14
–
100k*
2
1/4
LT1058
+
1
10k
4
3
74C74
5
10k
2k
5V
0.01µF
EIN
+
FLIP-FLOP
15V
INTEGRATOR
BOUT
6
10k
7
– 5V
+
180pF
6.8k
1/4
LT1058
68pF
10k
–
15V
10k
2N3906
–15V
4
10k
OUTPUT
GATE
16
LTC1043
CURRENT
SWITCH
15
820Ω
18
17
LEVEL
SHIFT
–15V
3
1k
+
–15V
AOUT
1/4
LT1058
2N4393
–
A
DATA OUTPUT = OUT
BOUT
*VISHAY S-102 RESISTOR
OUT
LT1021 IN
10V
NC
GND
95k*
10k
–15V
LT1057/1058 • A07
10578fa
12
LT1057/LT1058
U
TYPICAL APPLICATIO S
Instrumentation Amplifier with Shield Driver
3
2
+
10k
1k
1
1/4
LT1058
–
RF
9.1k
GUARD
RG
1k
+
+
1/4
LT1058
8
INPUT
–
–
15V
5
10
9
1/4
LT1058
6
RG
1k
4
+
–
7
OUTPUT
11
–15V
GUARD
13
12
RF
9.1k
–
1/4
LT1058
GAIN = 10(1+RF/RG) ≈ 100
IB = 5pA
RIN = 1012Ω
BW = 350kHz
10k
14
1k
+
LT1057/1058 • A08
100dB Range Logarithmic Photodiode Amplifier
6 Q4
4
10
5
2k
11
1M
Q5
1M
FULL-SCALE
750k* TRIM
12
50k
DARK
TRIM
50k*
500pF
–
IP
1/2
LT1057
0.01µF
+
–
1/2
LT1057
0.033µF
EOUT
+
LT1021-10V
10k*
–
15V
IN
OUT
1
3k
2
LM301A
10k*
3
Q2
+
2k
33Ω
15
14
Q1
7
Q3
13
9
15V
= HP-5082-4204 PIN PHOTODIODE.
Q1–Q5 = CA3096.
CONNECT SUBSTRATE OF CA3096
ARRAY TO Q4’s EMITTER.
*1% RESISTOR
100dB RANGE LOGARITHMIC PHOTODIODE AMPLIFIER
8
LIGHT (900µM)
RESPONSE DATA
DIODE CURRENT
CIRCUIT OUTPUT
1MW
100µW
10µW
1µW
100nW
10nW
350µA
35µA
3.5µA
350nA
35nA
3.5nA
10.0V
7.85V
5.70V
3.55V
1.40V
–0.75V
LT1057/1058 • A09
10578fa
13
LT1057/LT1058
U
PACKAGE DESCRIPTIO
H Package
8-Lead TO-5 Metal Can (.200 Inch PCD)
(Reference LTC DWG # 05-08-1320)
.335 – .370
(8.509 – 9.398)
DIA
.305 – .335
(7.747 – 8.509)
.027 – .045
(0.686 – 1.143)
PIN 1
45°TYP
.040
(1.016)
MAX
.028 – .034
(0.711 – 0.864)
.200
(5.080)
TYP
.050
(1.270)
MAX
SEATING
PLANE
.165 – .185
(4.191 – 4.699)
GAUGE
PLANE
.010 – .045*
(0.254 – 1.143)
.110 – .160
(2.794 – 4.064)
INSULATING
STANDOFF
REFERENCE
PLANE
.500 – .750
(12.700 – 19.050)
.016 – .021**
(0.406 – 0.533)
*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND THE SEATING PLANE
.016 – .024
**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
(0.406 – 0.610) H8(TO-5) 0.200 PCD 0801
J8 Package
8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.300 BSC
(7.62 BSC)
.008 – .018
(0.203 – 0.457)
.200
(5.080)
MAX
CORNER LEADS OPTION
(4 PLCS)
0° – 15°
.015 – .060
(0.381 – 1.524)
.023 – .045
(0.584 – 1.143)
HALF LEAD
OPTION
.045 – .068
(1.143 – 1.650)
FULL LEAD
OPTION
NOTE: LEAD DIMENSIONS APPLY TO SOLDER
DIP/PLATE OR TIN PLATE LEADS
.405
(10.287)
MAX
.005
(0.127)
MIN
8
.014 – .026
(0.360 – 0.660)
5
.025
(0.635)
RAD TYP
.220 – .310
(5.588 – 7.874)
1
.045 – .065
(1.143 – 1.651)
6
7
2
3
4
.125
3.175
MIN
.100
(2.54)
BSC
J8 0801
J Package
14-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.200
(5.080)
MAX
.300 BSC
(7.62 BSC)
.015 – .060
(0.381 – 1.524)
.008 – .018
(0.203 – 0.457)
NOTE: LEAD DIMENSIONS APPLY
TO SOLDER DIP/PLATE OR TIN
PLATE LEADS
.005
(0.127)
MIN
.785
(19.939)
MAX
14
13
12
11
10
9
8
0° – 15°
.045 – .065
(1.143 – 1.651)
.014 – .026
(0.360 – 0.660)
.100
(2.54)
BSC
.025
(0.635)
.125 RAD TYP
(3.175)
MIN
.220 – .310
(5.588 – 7.874)
1
2
3
4
5
6
7
J14 0801
OBSOLETE PACKAGES
10578fa
14
LT1057/LT1058
U
PACKAGE DESCRIPTIO
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.400*
(10.160)
MAX
8
7
6
5
1
2
3
4
.255 ± .015*
(6.477 ± 0.381)
.300 – .325
(7.620 – 8.255)
.065
(1.651)
TYP
.008 – .015
(0.203 – 0.381)
(
+.035
.325 –.015
+0.889
8.255
–0.381
.130 ± .005
(3.302 ± 0.127)
.045 – .065
(1.143 – 1.651)
.120
(3.048) .020
MIN
(0.508)
MIN
.018 ± .003
.100
(2.54)
BSC
)
(0.457 ± 0.076)
N8 1002
NOTE:
1. DIMENSIONS ARE
INCHES
MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
N Package
14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.770*
(19.558)
MAX
14
13
12
11
10
9
8
1
2
3
4
5
6
7
.255 ± .015*
(6.477 ± 0.381)
.300 – .325
(7.620 – 8.255)
.045 – .065
(1.143 – 1.651)
.130 ± .005
(3.302 ± 0.127)
.020
(0.508)
MIN
.065
(1.651)
TYP
.008 – .015
(0.203 – 0.381)
+.035
.325 –.015
(
+0.889
8.255
–0.381
NOTE:
1. DIMENSIONS ARE
)
.120
(3.048)
MIN
.005
(0.125) .100
MIN (2.54)
BSC
.018 ± .003
(0.457 ± 0.076)
INCHES
MILLIMETERS
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
N14 1002
10578fa
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
15
LT1057/LT1058
U
PACKAGE DESCRIPTIO
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.189 – .197
(4.801 – 5.004)
NOTE 3
.045 ±.005
.050 BSC
7
8
5
6
N
N
.245
MIN
.160 ±.005
1
.030 ±.005
TYP
.150 – .157
(3.810 – 3.988)
NOTE 3
.228 – .244
(5.791 – 6.197)
2
3
N/2
N/2
RECOMMENDED SOLDER PAD LAYOUT
1
.010 – .020
× 45°
(0.254 – 0.508)
3
2
4
.053 – .069
(1.346 – 1.752)
.008 – .010
(0.203 – 0.254)
.004 – .010
(0.101 – 0.254)
0°– 8° TYP
.016 – .050
(0.406 – 1.270)
.050
(1.270)
BSC
.014 – .019
(0.355 – 0.483)
TYP
NOTE:
1. DIMENSIONS IN
INCHES
(MILLIMETERS)
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
SO8 0502
SW Package
16-Lead Plastic Small Outline (Wide .300 Inch)
(Reference LTC DWG # 05-08-1620)
.050 BSC .045 ±.005
.030 ±.005
TYP
.398 – .413
(10.109 – 10.490)
NOTE 4
16
N
15
14
13
12
11 10
9
N
.325 ±.005
.420
MIN
.394 – .419
(10.007 – 10.643)
NOTE 3
1
2
3
N/2
N/2
RECOMMENDED SOLDER PAD LAYOUT
1
.005
(0.127)
RAD MIN
.009 – .013
(0.229 – 0.330)
.291 – .299
(7.391 – 7.595)
NOTE 4
.010 – .029 × 45°
(0.254 – 0.737)
2
3
4
5
6
.093 – .104
(2.362 – 2.642)
8
.037 – .045
(0.940 – 1.143)
0° – 8° TYP
.050
(1.270)
BSC
NOTE 3
.016 – .050
(0.406 – 1.270)
NOTE:
1. DIMENSIONS IN
Linear Technology Corporation
.004 – .012
(0.102 – 0.305)
.014 – .019
(0.356 – 0.482)
TYP
INCHES
(MILLIMETERS)
2. DRAWING NOT TO SCALE
3. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
16
7
S16 (WIDE) 0502
10578fa
LW/TP 1102 1K REV A • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 1989