LT1057/LT1058
1
10578fd
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Dual and Quad, JFET Input
Precision High Speed Op Amps
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.
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.
Both the LT1057 and LT1058 are available in the plastic
PDIP package and the surface mount SO package.
Current Output, High Speed, High Input Impedance
Instrumentation Amplifier
n 14V/µs Slew Rate: 10V/µs Min
n 5MHz Gain-Bandwidth Product
n Fast Settling Time: 1.3µs to 0.02%
n 150µV Offset Voltage (LT1057): 450µV Max
n 180µV Offset Voltage (LT1058): 600µV Max
n 2µV/°C VOS Drift: 7µV/°C Max
n 50pA Bias Current at 70°C
n Low Voltage Noise:
13nV/√Hz at 1kHz
26nV/√Hz at 10Hz
n Precision, High Speed Instrumentation
n Fast, Precision Sample-and-Hold
n Logarithmic Amplifiers
n D/A Output Amplifiers
n Photodiode Amplifiers
n Voltage-to-Frequency Converters
n Frequency-to-Voltage Converters
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Distribution of Offset Voltage
(All Packages, LT1057 and LT1058)
–
+
–
+
–
+
–
+
6.8k7.5k
RX
7.5k
1/4
LT1058
1/4
LT1058
1/4
LT1058
1/4
LT1058
1
3
2
V2
IOUT
IOUT = 2(V1 – V2)
RX
V1
*GAIN ADJUST
**COMMON MODE REJECTION ADJUST
BANDWIDTH ≈ 2MHz
6
5
7
10
14
13
12
9
8
4.7k
500Ω*
1k**
4.7k 7.5k
9.1k
10578 TA01
INPUT OFFSET VOLTAGE (mV)
–1.0
PERCENT OF UNITS
15
20
25
0.6
10578 TA01b
10
5
0–0.6 –0.2 0 0.2 1.0
VS = ±15V
TA = 25°C
LT1057: 610 OP AMPS
LT1058: 520 OP AMPS
1130 OP AMPS
TESTED
LT1057/LT1058
2
10578fd
ABSOLUTE MAXIMUM RATINGS
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
(Note 1)
PACKAGE/ORDER INFORMATION
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/LT1058I ........................... –40°C ≤ TA ≤ 85°C
TOP VIEW
H PACKAGE
8-LEAD METAL CAN
OUTPUT B
V+
OUTPUT A
–IN A –IN B
+IN B
+IN A
V– (CASE)
8
7
6
5
3
2
1
4
A
+
–
+
–
B
TOP VIEW
TJMAX = 125°C, θJA = 130°C/W
LT1057AMH
LT1057MH
LT1057ACH
LT1057CH
ORDER PART
NUMBER
LT1057ACN8
LT1057CN8
LT1058ACN
LT1058CN
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUTPUT A
–IN A
+IN A
V+
+IN B
–IN B
OUTPUT B
OUTPUT D
–IN D
+IN D
V–
+IN C
–IN C
OUTPUT C
+
–A
+
–
D
AD
+
–
+
–
BC
1057
1057I
S8 PART MARKING
LT1057S8
LT1057IS8
ORDER PART
NUMBER
ORDER PART
NUMBER
ORDER PART
NUMBER
TOP VIEW
N8 PACKAGE
8-LEAD PDIP
1
2
3
4
8
7
6
5
OUTPUT
–IN A
+IN A
V–
V+
OUTPUT B
– IN B
+ IN B
+
–A
+
–
B
TJMAX = 125°C, θJA = 130°C/W
N14 PACKAGE
14-LEAD PDIP
1
2
3
4
8
7
6
5
TOP VIEW
+IN A
V–
+IN B
–IN B
–IN A
OUT A
V+
OUT B
S8 PACKAGE
8-LEAD PLASTIC SO
Please note that the LT1057S8/LT1057IS8 standard surface mount pin-
out differs from that of the LT1057 standard CERDIP/PDIP packages.
TJMAX = 150°C, θJA = 200°C/W
LT1058AMJ
LT1058MJ
LT1058ACJ
LT1058CJ
J14 PACKAGE 14-LEAD CERDIP
TJMAX = 150°C, θJA = 100°C/W
J8 PACKAGE 8-LEAD CERDIP
TJMAX = 150°C, θJA = 100°C/W
LT1057ACJ8
LT1057CJ8
LT1057AMJ8
LT1057MJ8
1
2
3
4
5
6
7
8
TOP VIEW
SW PACKAGE
16-LEAD PLASTIC (WIDE) SO
16
15
14
13
12
11
10
9
NC
NC
OUT A
–IN A
+IN A
V–
NC
NC
NC
NC
V+
OUT B
–IN B
+IN B
NC
NC
LT1058SW
LT1058ISW
ORDER PART
NUMBER
ORDER PART
NUMBER
1
2
3
4
5
6
7
8
TOP VIEW
SW PACKAGE
16-LEAD PLASTIC (WIDE) SO
16
15
14
13
12
11
10
9
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
NC
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
NC
LT1057SW
LT1057ISW
TJMAX = 150°C, θJA = 90°C/W TJMAX =150°C, θJA =90°C/W
+
–A
+
–
D
AD
+
–
+
–
BC
+
–A
+
–
B
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LT1057/LT1058
3
10578fd
ELECTRICAL CHARACTERISTICS
VS = ±15V, TA = 25°C, VCM = 0V unless otherwise noted. (Note 2)
SYMBOL PARAMETER CONDITIONS
LT1057AM/LT1058AM
LT1057AC/LT1058AC
LT1057M/LT1058M
LT1057C/LT1058C
UNITSMIN TYP MAX MIN TYP MAX
VOS Input Offset Voltage LT1057
LT1057 (S8 Package)
LT1058
150
180
450
600
200
220
250
800
1200
1000
μV
μV
μV
lOS Input Offset Current Fully Warmed Up 3 40 4 50 pA
lBInput 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
Input Capacitance 4 4 pF
enInput Noise Voltage 0.1Hz to 10Hz LT1057
LT1058
2.0
2.4
2.1
2.5
µVP-P
µVP-P
enInput Noise Voltage Density fO = 10Hz
fO = 1kHz (Note 3)
26
13
22
28
14
24
nV/√Hz
nV/√Hz
inInput Noise Current Density fO = 10Hz, 1kHz (Note 4) 1.5 4 1.8 6 fA/√Hz
AVOL Large-Signal Voltage Gain VO = ±10V, RL = 2k
VO = ±10V, RL = 1k
150
120
350
250
100
80
300
220
V/mV
V/mV
Input Voltage Range ±10.5 14.3
–11.5
±10.5 14.3
–11.5
V
V
CMRR Common Mode Rejection Ratio , LT1057
LT1058
86
84
100
98
82
80
98
96
dB
dB
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 f = 1MHz (Note 6) 3.5 5 3 5 MHz
ISSupply Current Per Amplifier 1.6 2.5 1.7 2.8 mA
Channel Separation DC to 5kHz, VIN = ±10V 132 130 dB
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOS Input Offset Voltage LT1057
LT1058
0.3
0.35
2
2.5
mV
lOS Input Offset Current Fully Warmed Up 5 50 pA
lBInput Bias Current Fully Warmed Up ±10 ±100 pA
Input Resistance –Differential
–Common Mode
VCM = –11V to 8V
VCM = 8V to 11V
0.4
0.4
0.05
TΩ
Input Capacitance 4 pF
enInput Noise Voltage 0.1Hz to 10Hz LT1057
LT1058
2.1
2.5
µVP-P
enInput Noise Voltage Density fO = 10Hz
fO = 1kHz
26
13
nV/√Hz
(LT1057/LT1058 SW Package Only), VS = ±15V, TA = 25°C, VCM = 0V unless otherwise noted.
LT1057/LT1058
4
10578fd
ELECTRICAL CHARACTERISTICS
(LT1057/LT1058 SW Package Only), VS = ±15V, TA = 25°C, VCM = 0V
unless otherwise noted.
The l 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.
SYMBOL PARAMETER CONDITIONS
LT1057AC
LT1058AC
LT1057C
LT1058C
UNITSMIN TYP MAX MIN TYP MAX
VOS Input Offset Voltage LT1057
LT1057IS8
LT1057S8
LT1058
l
l
l
l
250
300
800
1200
330
500
400
400
1400
2300
1900
1800
μV
μV
μV
μV
Average Temperature
Coefficient of Input
(Offset Voltage)
LT1057 H/J8 Package
N8 Package
LT1057S8 (Note 5)
LT1057IS8 (Note 5)
LT1058 J Package (Note 5)
N Package (Note 5)
l
l
l
l
l
l
1.8
3
2.5
4
7
10
10
15
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
IOS lnput Offset Current Warmed Up, TA = 70°C
LT1057IS8
l
18 150 20
35
250
600
pA
IBInput Bias Current Warmed Up, TA = 70°C
LT1057IS8
l
±50 ±250 ±60
±100
±350
±900
pA
AVOL Large-Signal Voltage Gain VO = ±10V, RL = 2k l70 220 50 200 V/mV
CMRR Common Mode Rejection Ratio VCM = ±10.4V l85 98 80 96 dB
PSRR Power Supply Rejection Ratio VS = ±10V to ±18V l87 102 84 100 dB
VOUT Output Voltage Swing RL = 2k l±12 ±12.8 ±12 ±12.8 V
ISSupply Current Per Amplifier
TA = 70°C
l
14
2.8
1.5
3.2 mA
mA
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
inInput Noise Current Density fO = 10Hz, 1kHz 1.8 fA/√Hz
AVOL Large-Signal Voltage Gain VO = ±10V RL = 2k
RL = 1k
100
50
300
220
V/mV
Input Voltage Range ±10.5 14.3
–11.5
V
CMRR Common Mode Rejection Ratio VCM = ±15V LT1057
LT1058
82
80
98
98
dB
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 f = 1MHz (Note 6) 3 5 MHz
ISSupply Current Per Amplifier 1.7 2.8 mA
Channel Separation DC to 5kHz, VIN = ±10V 130 dB
LT1057/LT1058
5
10578fd
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
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.
The l denotes the specifications which apply over the temperature range of –55°C ≤ TA ≤ 125°C, VS = ±15V, VCM = 0V,
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
LT1057AM
LT1058AM
LT1057M
LT1058M
UNITSMIN TYP MAX MIN TYP MAX
VOS Input Offset Voltage LT1057
LT1058
l
l
300
380
1100
1600
400
550
2000
2500
μV
μV
Average Temperature Coefficient
of Input Offset Voltage
LT1057
LT1058 (Note 5)
l
l
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
IBInput Bias Current Warmed Up, TA = 125°C ±0.6 ±4.5 ±0.7 ±6 nA
AVOL Large-Signal Voltage Gain VO = ±10V, RL = 2k l40 120 30 110 V/mV
CMRR Common Mode Rejection Ratio VCM = ±10.4V l84 97 80 95 dB
PSRR Power Supply Rejection Ratio VS = ±10V to ±17V l86 100 83 98 dB
VOUT Output Voltage Swing RL = 2k l±12 ±12.7 ±12 ±12.6 V
ISSupply Current Per Amplifier TA = 125°C 1.25 1.9 1.3 2.2 mA
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOS Input Offset Voltage LT1057
LT1058S
LT1058IS
l
l
l
0.5
0.6
0.7
2.5
3.0
4.0
mV
Average Temperature Coefficient of
Input Offset Voltage
l5 µV/°C
lOS Input Offset Current Warmed Up, TA = 70°C
Warmed Up, TA = 85°C
20
35
250
400
pA
lBInput Bias Current Warmed Up, TA = 70°C
Warmed Up, TA = 85°C
±60
±100
±400
±700
pA
AVOL Large-Signal Voltage Gain VO = ±10V, RL = 2k LT1057
LT1058
l
l
50
40
200
200
mV
CMRR Common Mode Rejection Ratio VCM = ±10.5V LT1057
LT1058
l
l
80
78
96
96
dB
PSRR Power Supply Rejection Ratio VS = ±10V to ±18V LT1057
LT1058
l
l
84
82
100
100
dB
VOUT Output Voltage Swing RL = 2k l±12 ±12.8 V
(LT1057/LT1058 SW Package Only). The l 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.
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 to 1G
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.
LT1057/LT1058
6
10578fd
TYPICAL PERFORMANCE CHARACTERISTICS
Input Bias and Offset Currents
vs Temperature
Input Bias Current Over
the Common-Mode Range
Warm-Up Drift
Distribution of Offset Voltage Drift
with Temperature
(H and J Package)
Distribution of Offset Voltage
Drift with Temperature
(Plastic N Package)
Long-Term Drift of
Representative Units
Voltage Noise vs Frequency
0.1Hz to 10Hz Noise
Voltage Gain vs Temperature
AMBIENT TEMPERATURE (°C)
0
INPUT BIAS AND OFFSET CURRENT (pA)
100
300
1000
100
10578 G01
30
10
325 50 75 125
VS = ±15V
VCM = 0V
WARMED UP
BIAS CURRENT
OFFSET CURRENT
COMMON MODE INPUT VOLTAGE (V)
–15
–0.2
INPUT BIAS CURRENT, TA = 125°C (nA)
INPUT BIAS CURRENT, TA = 25°C TO 70°C (pA)
0
0.4
0.6
0.8
5
1.6
10578 G02
0.2
–5
–10 10
0 15
1.0
1.2
1.4
–20
0
40
60
80
160
20
100
120
140
VS = ±15V
TA = 125°C
TA = 25°C
TA = 70°C
TIME AFTER POWER ON (MINUTES)
0
CHANGE IN OFFSET VOLTAGE (µV)
60
80
100
4
10578 G03
40
20
01235
VS = ± 15V
TA = 25°C
LT1058 N PACKAGE
LT1057 N, LT1058 J PACKAGE
LT1057 H PACKAGE
LT1057 J PACKAGE
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
–12
0
NUMBER OF UNITS
20
40
60
80
–6 0 612
10578 G04
100
120
–9 –3 39
1
2
4
32
70
96
112
5
2
VS = ±15V LT1057H: 102 OP AMPS
LT1057J: 130 OP AMPS
LT1058J: 136 OP AMPS
368 OP AMPS
24
16
4
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
–12
0
NUMBER OF UNITS
20
40
60
80
–6 0 612
10578 G05
100
120
–9 –3 39
3
11
31
65
70
22
4
VS = ±15V LT1057N: 180 OP AMPS
LT1058N: 176 OP AMPS
356 OP AMPS
27
9
60
44
5
1 UNIT EACH AT
–19, –16, –13
14, 16µV/°C
TIME (MONTHS)
0
OFFSET VOLTAGE CHANGE (µV)
10
30
50
4
10578 G06
–10
–30
0
20
40
–20
–40
–50 1235
VS = ±15V
TA = 25°C
FREQUENCY (Hz)
3 10 30 100 300 1000 3000 10000
10
RMS VOLTAGE NOISE DENSITY (nV/√Hz)
30
20
1000
70
50
10578 G07
1/f CORNER = 28Hz
VS = ±15V
TA = 25°C
TIME (SECONDS)
0
NOISE VOLTAGE (1µV/DIV)
8
10578 G08
24610
VS = ±15V
TA = 25°C
TEMPERATURE (°C)
–25
10
100
30
1000
300
25 75
10578 G09
VOLTAGE GAIN (V/mV)
–75 125
VS = ±15V
V0 = ±10V
RL = 2k
RL = 1k
LT1057/LT1058
7
10578fd
TYPICAL PERFORMANCE CHARACTERISTICS
Large-Signal Response
Slew Rate, Gain-Bandwidth
Product vs Temperature
Undistorted Output Swing vs
Frequency
Small-Signal Response
Gain, Phase Shift vs Frequency
Capacitive Load Handling
Settling Time
Channel Separation vs Frequency
Output Impedance vs Frequency
0.5µs/DIV
5V/DIV
10578 G10
AV = +1
CL = 100pF
TEMPERATURE (°C)
–50
SLEW RATE (V/µs)
GAIN BANDWIDTH PRODUCT (MHz)
20
30
25 75
10578 G11
10
6
10
2
4
8
–25 0 50 100 125
0
VS = ±15V
SLEW FALL
GBW
SLEW RISE
FREQUENCY (Hz)
100k
0
PEAK-TO-PEAK OUTPUT SWING (V)
6
24
1M 10M
10578 G12
30
12
18
VS = ±15V
TA = 25°C
0.2µs/DIV
20mV/DIV
10578 G13
AV = +1
CL = 100pF
FREQUENCY (Hz)
1
GAIN (dB)
60
100
100M
10578 G14
20
–20 100 10k 1M
10 1k 100k 10M
140
140
120
160
180
100
40
80
0
120
PHASE MARGIN = 58°
VS = ±15V
TA = 25°C
CL = 10pF
GAIN PHASE
PHASE SHIFT (DEGREES)
CAPACITIVE LOAD (pF)
10
40
OVERSHOOT (%)
60
80
100 1000 10000
10578 G15
20
30
50
70
10
0
VS = ±15V
TA = 25°C
AV = +1
AV = –1
AV = 10
SETTLING TIME (µs)
0
OUTPUT VOLTAGE SWING FROM 0V (V)
0
10578 G16
–5
–10 1 2
5
10mV
10mV
0.5mV
0.5mV
10
3
FROM LEFT TO RIGHT:
SETTLING TIME TO 10mV, 5mV, 2mV,
1mV, 0.5mV
VS = ±15V
TA = 25°C
FREQUENCY (Hz)
1
60
CHANNEL SEPARATION (dB)
80
100
120
140
160
10 100 1k 10k
10578 G17
100k 1M
VS = ±15V
TA = 25°C
VIN = 20VP-P TO 5kHz
RL = 2k
RS = 1k
LIMITED BY
PIN-TO-PIN
CAPACITANCE
RS = 10Ω
LIMITED BY
THERMAL
INTERACTION
AT DC = 132dB
FREQUENCY (Hz)
1k
0.1
OUTPUT IMPEDANCE (Ω)
1
10
100
10k 100k 10M
10578 G18
V
S
= ±15V
T
A
= 25
°
C
AV = 100
AV = 10
AV = 1
LT1057/LT1058
8
10578fd
TYPICAL PERFORMANCE CHARACTERISTICS
Common Mode Rejection Ratio
vs Frequency
Common Mode Range
vs Temperature
Common Mode and Power Supply
Rejections vs Temperature
Power Supply Rejection Ratio
vs Frequency
Supply Current
vs Temperature
Short-Circuit Current vs Time
(One Output Shorted to Ground)
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.
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
APPLICATIONS INFORMATION
with RS and RF in the kilohm range, this pole can create
excess phase shift and even oscillation. A small capaci-
tor (CF) in parallel with RF eliminates this problem. With
RS(CS + CIN) = RFCF, the effect of the feedback pole is
completely removed.
OUTPUT
–
+
CIN
RF
RS
CF
CS
10578 F01
FREQUENCY (Hz)
10
0
CMRR (dB)
20
40
60
80
120
100 1k 10k 100k
10578 G19
1M 10M
100
VS = ±15V
TA = 25°C
TEMPERATURE (°C)
–50
–15
COMMON MODE RANGE (V)
–14
–12
–11
±10
15
12
050
10578 G20
–13
13
14
11
100
VS = ±15V
TEMPERATURE (°C)
CMRR, PSRR (dB)
110
120
25 75
10578 G21
100
–25 125
PSRR
CMRR
90
VS = ±10V TO ±17V FOR PSRR
VS = ±15V, VCM = ±10.5V FOR CMRR
FREQUENCY (Hz)
10
140
120
100
80
60
40
20
010k 1M
10578 G22
100 1k 100k 10M
POWER SUPPLY REJECTION RATIO (dB)
TA = 25°C
POSITIVE
SUPPLY
NEGATIVE
SUPPLY
TEMPERATURE (°C)
–50
SUPPLY CURRENT PER AMPLIFIER (mA)
2
3
25 75
10578 G23
1
–25 0 50 100 125
0
VS = ±15V
VS = ±10V
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
0
–50
SHORT-CIRCUIT CURRENT (mA)
–40
–20
–10
0
50
20
12
10578 G24
–30
30
40
10
3
TA = –55°C
TA = 25°C
TA = 125°C
TA = 125°C
TA = 25°C
TA = –55°C
VS = ±15V
LT1057/LT1058
9
10578fd
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., Teflon
TM
, Kel-F); cleaning
of all insulating surfaces to remove fluxes and other resi-
dues 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 trans-
conductance 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 com-
pound 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.
APPLICATIONS INFORMATION
All Photos 5V/Div Vertical Scale, 50µs/Div Horizontal Scale
(A) ±16V Sine Wave Input (B) LF412A Output (C) LT1057/LT1058 Output
Teflon is a trademark of DuPont.
LT1057/LT1058
10
10578fd
TYPICAL APPLICATIONS
Low Noise, Wideband, Gain = 100 Amplifier with High Input Impedance
Wideband, High Input Impedance, Gain = 1000 Amplifier
Low Distortion, Crystal Stabilized Oscillator
1/4
LT1058
–
+
–
+
–
+
1/4
LT1058
1/4
LT1058
–
+
1/4
LT1058
470Ω
500Ω
INPUT
OUTPUT
–3dB BANDWIDTH = 350kHZ
GAIN-BANDWIDTH PRODUCT = 35MHz
WIDEBAND NOISE = = 7.5nV/√Hz REFERRED TO INPUT
RMS NOISE DC TO FULL BANDWIDTH = 7µV
470Ω
470Ω
4.3k 2.4k
4.3k
2.4k 7.5k
2.4k4.3k
13nV/√Hz
√3
10578 TA02
INPUT OUTPUT
4.7k
1k
10578 TA03
–
+
4.7k
1k
1/4
LT1058
–
+
1/4
LT1058
–
+
1/4
LT1058
4.7k
1k
1/4
LT1058
4.7k
1k
100Ω
–3dB BANDWIDTH = 400kHz
GAIN-BANDWIDTH PRODUCT = 400MHz
WIDEBAND NOISE = 13nV/√Hz REFERRED TO INPUT
–
+
10578 TA04
–
+
1/2
LT1057
–
+
1/2
LT1057
130Ω
100Ω
100k
15pF
CRYSTAL
20kHz
NT CUT
0.01µF
1VRMS OUT
20kHz
0.005%
DISTORTION
OSCILLATOR
COMMON MODE
SUPPRESSION
#327
LAMP
LT1057/LT1058
11
10578fd
TYPICAL APPLICATIONS
Fast, Precision Bridge Amplifier
Analog Divider
–
+
1k
INPUT
SLEW RATE = 14V/µs
OUTPUT CURRENT TO LOAD = 150mA
LOAD CAPACITANCE: UP TO 1µF
330pF
10k
1/2
LT1057 LT1010 LT1010
–
+
330pF
1/2
LT1057
RLOAD
10k
10578 TA05
20k
1k
–5V
LTC1043
0.001
POLYSTYRENE
LT1004
1.2V
1µF
5V
–5V
OUTPUT =
10578 TA06
–
+
1/2
LT1057
6
1µF
5
2
80.6k*
A
B
LTC1043
B INPUT 7 8
13 14
12
11
16
–
+
1/2
LT1057
1µF
30pF
1µF
22k 330k
2N2907
* 1% FILM
A INPUT
–5V
75k*
+
LT1057/LT1058
12
10578fd
TYPICAL APPLICATIONS
Bipolar Input (AC) V/F Converter
12-Bit A/D Converter
–5V
5V
+
–
+
–
+
–
–
+
1/4
LT1058 1/4
LT1058
DATA
OUTPUT
0kHz TO 1kHz
1/4
LT1058
1/4
LT1058
6 2
LTC1043
0.01
POLYSTYRENE
5
18 3 15
16
1k
–5V
LT1004
2.5V 0.1µF
0.1µF
1µF
1M* 1M*
22k
*1% FILM
MATCH 1M RESISTORS TO 0.05%
10k
150pF
10k
1M*
1M*
2N3906
SIGN
BIT
10k
INPUT
±1V
36.5k*
10578 TA07
–5V
5V
+
–
+
–
+
–
–
+
LTC1043
CURRENT
SWITCH
95k*
–15V
–15V
–15V
–15V
0.01µF
INTEGRATOR
10k
10578 TA08
1/4
LT1058
1/4
LT1058
1/4
LT1058
1/4
LT1058
BOUT
4 16
17 3
1815
2N4393
DATA OUTPUT =
*VISHAY S-102 RESISTOR
AOUT
BOUT
OUT
GND
LT1021
10V NCIN
1k
10k
100k*
EIN
0.001µF
10k
10k OUTPUT
GATE
AOUT
15V
10k
CLOCK
10k
2k
10k
10k
180pF
2N3906
68pF
4
3
1
2
15V
FLIP-FLOP
14
765
6.8k
820Ω LEVEL
SHIFT
74C74
LT1057/LT1058
13
10578fd
TYPICAL APPLICATIONS
Instrumentation Amplifier with Shield Driver
100dB Range Logarithmic Photodiode Amplifier
–
+
–
+
–
+
–
+
+
–
10578 TA09
1/4
LT1058
1/4
LT1058
1/4
LT1058
1/4
LT1058
RF
9.1k
RG
1k 15V
–15V
11
OUTPUT
GAIN = 10(1+RF/RG) ≈ 100
IB = 5pA
RIN = 1012Ω
BW = 350kHz
7
10
9
4
5
6
3
1
8
GUARD
INPUT
GUARD
2
13
12
14
RG
1k
RF
9.1k
1k
1k
10k
10k
+
–
+
–
10578 TA10
1/2
LT1057
1/2
LT1057
–
+
LM301A
50k*
10k*
OUT
IN
15V
2k
15
13
14
33Ω
7
8
9
15V
LIGHT (900µM)
1MW
100µW
10µW
1µW
100nW
10nW
CIRCUIT OUTPUT
10.0V
7.85V
5.70V
3.55V
1.40V
–0.75V
RESPONSE DATA
DIODE CURRENT
350µA
35µA
3.5µA
350nA
35nA
3.5nA
2k
IP
750k*
EOUT
1M
1M
FULL-SCALE
TRIM
50k
DARK
TRIM
10k*
LT1021-10V
3k
Q5
10
12
11
6 Q4
500pF
4
5
0.01µF
0.033µF
Q2
32
1
Q3
Q1
= HP-5082-4204 PIN PHOTODIODE.
Q1–Q5 = CA3096.
CONNECT SUBSTRATE OF CA3096
ARRAY TO Q4’s EMITTER.
*1% RESISTOR
100dB RANGE LOGARITHMIC PHOTODIODE AMPLIFIER
LT1057/LT1058
14
10578fd
.050
(1.270)
MAX
.016 – .021**
(0.406 – 0.533)
.010 – .045*
(0.254 – 1.143)
SEATING
PLANE
.040
(1.016)
MAX .165 – .185
(4.191 – 4.699)
GAUGE
PLANE
REFERENCE
PLANE
.500 – .750
(12.700 – 19.050)
.305 – .335
(7.747 – 8.509)
.335 – .370
(8.509 – 9.398)
DIA
.200
(5.080)
TYP
.027 – .045
(0.686 – 1.143)
.028 – .034
(0.711 – 0.864)
.110 – .160
(2.794 – 4.064)
INSULATING
STANDOFF
45°TYP
H8(TO-5) 0.200 PCD 0801
LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE
AND THE SEATING PLANE
FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS .016 – .024
(0.406 – 0.610)
*
**
PIN 1
J8 0801
.014 – .026
(0.360 – 0.660)
.015 – .060
(0.381 – 1.524)
.125
3.175
MIN
.100
(2.54)
BSC
.300 BSC
(7.62 BSC)
.008 – .018
(0.203 – 0.457) 0° – 15°
.045 – .065
(1.143 – 1.651)
.045 – .068
(1.143 – 1.650)
FULL LEAD
OPTION
.023 – .045
(0.584 – 1.143)
HALF LEAD
OPTION
CORNER LEADS OPTION
(4 PLCS)
.200
(5.080)
MAX
.005
(0.127)
MIN
.405
(10.287)
MAX
.220 – .310
(5.588 – 7.874)
1 2 34
8 7 6 5
.025
(0.635)
RAD TYP
NOTE: LEAD DIMENSIONS APPLY TO SOLDER
DIP/PLATE OR TIN PLATE LEADS
.300 BSC
(7.62 BSC)
.008 – .018
(0.203 – 0.457) 0° – 15°
J14 0801
.045 – .065
(1.143 – 1.651)
.100
(2.54)
BSC
.014 – .026
(0.360 – 0.660)
.200
(5.080)
MAX
.015 – .060
(0.381 – 1.524)
.125
(3.175)
MIN
NOTE: LEAD DIMENSIONS APPLY
TO SOLDER DIP/PLATE OR TIN
PLATE LEADS 12 3 4 5 6 7
.220 – .310
(5.588 – 7.874)
.785
(19.939)
MAX
.005
(0.127)
MIN 14 11 891013 12
.025
(0.635)
RAD TYP
PACKAGE DESCRIPTION
H Package
8-Lead TO-5 Metal Can (.200 Inch PCD)
(Reference LTC DWG # 05-08-1320)
J8 Package
8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
J Package
14-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
OBSOLETE PACKAGES
LT1057/LT1058
15
10578fd
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PACKAGE DESCRIPTION
1 2 34
87 65
.255 ±.015*
(6.477 ±0.381)
.400*
(10.160)
MAX
.008 – .015
(0.203 – 0.381)
.300 – .325
(7.620 – 8.255)
.325 +.035
–.015
+0.889
–0.381
8.255
( )
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)
N8 REV I 0711
.065
(1.651)
TYP
.045 – .065
(1.143 – 1.651)
.130 ±.005
(3.302 ±0.127)
.020
(0.508)
MIN
.018 ±.003
(0.457 ±0.076)
.120
(3.048)
MIN
.100
(2.54)
BSC
N Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510 Rev I)
.008 – .015
(0.203 – 0.381)
.300 – .325
(7.620 – 8.255)
.325 +.035
–.015
+0.889
–0.381
8.255
( )
.255 ±.015*
(6.477 ±0.381)
.770*
(19.558)
MAX
31 24567
8910
11
1213
14
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)
N14 REV I 0711
.020
(0.508)
MIN
.120
(3.048)
MIN
.130 ±.005
(3.302 ±0.127)
.045 – .065
(1.143 – 1.651)
.065
(1.651)
TYP
.018 ±.003
(0.457 ±0.076)
.005
(0.127)
MIN .100
(2.54)
BSC
N Package
14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510 Rev I)
SO8 REV G 0212
.016 – .050
(0.406 – 1.270)
.010 – .020
(0.254 – 0.508)× 45°
0°– 8° TYP
.008 – .010
(0.203 – 0.254)
.053 – .069
(1.346 – 1.752)
.014 – .019
(0.355 – 0.483)
TYP
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
1234
.150 – .157
(3.810 – 3.988)
NOTE 3
8765
.189 – .197
(4.801 – 5.004)
NOTE 3
.228 – .244
(5.791 – 6.197)
.245
MIN .160 ±.005
RECOMMENDED SOLDER PAD LAYOUT
.045 ±.005
.050 BSC
.030 ±.005
TYP
INCHES
(MILLIMETERS)
NOTE:
1. DIMENSIONS IN
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)
4. PIN 1 CAN BE BEVEL EDGE OR A DIMPLE
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610 Rev G)
LT1057/LT1058
16
10578fd
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 1989
LT 0812 REV D • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LT1055/6 Precision, High Speed, JFET Input
Operational Amplifiers
12V/µs Slew Rate, 5.5MHz Bandwidth
LT1880 SOT-23, Rail-to-Rail Output, Picoamp Input
Precision Op Amps
150µV Max Offset Voltage, 900pA Max Input Bias Current
LT1881/2 Dual and Quad Rail-to-Rail Output, Picoamp Input
Precision Op Amps
50µV Max Offset Voltage, 200pA Max Input Bias Current
LT1884/5 Dual/Quad Rail-to-Rail Output, Picoamp Input
Precision Op Amps
50µV Max Offset Voltage, 400pA Max Input Bias Current
LT6010 135µA, 14nV/rtHz, Rail-to-Rail Output, Precision
Low Power Op Amp with Shutdown
35µV Max Offset Voltage, 300pA Max Input Bias Current
LT6011/12 Dual/Quad 135µA, 14nV/rtHz, Rail-to-Rail Output
Precision Low Power Op Amp
60µV Max Offset Voltage, 300pA Max Input Bias Current
LTC6078/9 Micropower Precision, Dual/Quad CMOS
Rail-to-Rail Input/Output Amplifiers
Maximum Offset Drift: 0.7µV/°C
LTC6241/2 Dual/Quad 18MHz, Low Noise, Rail-to-Rail
CMOS Op Amps
O.1Hz to 10Hz Noise: 550n Vpp
S16 (WIDE) 0502
NOTE 3
.398 – .413
(10.109 – 10.490)
NOTE 4
16 15 14 13 12 11 10 9
1
N
2345678
N/2
.394 – .419
(10.007 – 10.643)
.037 – .045
(0.940 – 1.143)
.004 – .012
(0.102 – 0.305)
.093 – .104
(2.362 – 2.642)
.050
(1.270)
BSC .014 – .019
(0.356 – 0.482)
TYP
0° – 8° TYP
NOTE 3
.009 – .013
(0.229 – 0.330)
.005
(0.127)
RAD MIN
.016 – .050
(0.406 – 1.270)
.291 – .299
(7.391 – 7.595)
NOTE 4
× 45°
.010 – .029
(0.254 – 0.737)
INCHES
(MILLIMETERS)
NOTE:
1. DIMENSIONS IN
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)
.420
MIN
.325 ±.005
RECOMMENDED SOLDER PAD LAYOUT
.045 ±.005
N
123 N/2
.050 BSC
.030 ±.005
TYP
SW Package
16-Lead Plastic Small Outline (Wide .300 Inch)
(Reference LTC DWG # 05-08-1620)
