LT1057/LT1058
Dual and Quad, JFET Input
Precision High Speed Op Amps
FEATURES
DESCRIPTION
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.
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14V/μs Slew Rate: 10V/μs Min
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5MHz Gain-Bandwidth Product
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Fast Settling Time: 1.3μs to 0.02%
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150μV Offset Voltage (LT1057): 450μV Max
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180μV Offset Voltage (LT1058): 600μV Max
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2μV/°C V Drift: 7μV/°C Max
OS
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50pA Bias Current at 70°C
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Low Voltage Noise:
TheLT1058isthelowestoffsetquadJFETinputoperational
amplifier in the standard 14-pin configuration. It offers
significantaccuracyimprovementoverpresentlyavailable
JFET input quad operational amplifiers. The LT1058 can
replace four single precision JFET input op amps, while
saving board space, power dissipation and cost.
13nV/√Hz at 1kHz
26nV/√Hz at 10Hz
APPLICATIONS
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Precision, High Speed Instrumentation
Both the LT1057 and LT1058 are available in the plastic
PDIP package and the surface mount SO package.
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Fast, Precision Sample-and-Hold
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Logarithmic Amplifiers
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D/A Output Amplifiers
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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Photodiode Amplifiers
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Voltage-to-Frequency Converters
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Frequency-to-Voltage Converters
TYPICAL APPLICATION
Current Output, High Speed, High Input Impedance
Instrumentation Amplifier
Distribution of Offset Voltage
(All Packages, LT1057 and LT1058)
25
LT1057: 610 OP AMPS
LT1058: 520 OP AMPS
1130 OP AMPS
V
T
= p15V
= 25oC
3
S
A
+
V2
7.5k
1
1/4
20
15
LT1058
TESTED
2(V1 – V2)
I
=
2
OUT
–
R
X
4.7k
7.5k
6
5
–
R
X
1/4
7
I
9.1k
OUT
LT1058
10
5
+
10
+
500Ω*
8
1/4
LT1058
9
13
12
–
4.7k
7.5k
–
+
6.8k
0
14
1/4
–1.0
–0.6
–0.2
0
0.2
0.6
1.0
LT1058
1k**
INPUT OFFSET VOLTAGE (mV)
V1
10578 TA01b
*GAIN ADJUST
**COMMON MODE REJECTION ADJUST
BANDWIDTH z 2MHz
10578 TA01
10578fc
1