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LT1097

Low Cost, Low Power

Precision Op Amp

FEATURES

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Offset Voltage

50

µV Max

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Offset Voltage Drift

1

µV/°C Max

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Bias Current

250pA Max

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Offset Current

250pA Max

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Bias and Offset Current Drift

4pA/

°C Max

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Supply Current

560

µA Max

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0.1Hz to 10Hz Noise

0.5

µVp-p, 2.2pAp-p

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CMRR

115dB Min

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Voltage Gain

117dB Min

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PSRR

114dB Min

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Guaranteed Operation on Two NiCad Batteries

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Replaces OP-07/OP-77/OP-97/OP-177/AD707/

LT1001 with Improved Price/Performance

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High Impedance Difference Amplifiers

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Logarithmic Amplifiers (Wide Dynamic Range)

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Thermocouple Amplifiers

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Precision Instrumentation

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Active Filters (with Small Capacitors)

, LTC and LT are registered trademarks of Linear Technology Corporation.

LT

and outstanding precision performance.

On all operational amplifier data sheets, the specifications

listed on the front page are for highly selected, expensive

grades, while the specs for the low cost grades are buried

deep in the data sheet.

The LT1097 does not have any selected grades, the

outstanding specifications shown in the Features section

are for its only grade.

The design effort of the LT1097 concentrated on optimiz-

ing the performance of all precision specs—at only 350

µA

of supply current. Typical values are 10

µV offset voltage,

40pA bias and offset currents, 0.2

µV/°C and 0.4pA/°C

drift. Common mode and power supply rejections, voltage

gain are typically in excess of 128dB.

All parameters that are important for precision, low power

op amps have been optimized. Consequently, using the

LT1097 error budget calculations in most applications is

unnecessary.

+

9V

OUT = 1.1V TO 8.0V

AS 1.8k

≤ R2 ≤ 135k

LT1097•TA01

4

2

3

7

6

R1

20k

R2

1.018235V

2N3609

SATURATED

STANDARD

CELL #101

EPPLEY LABS

NEWPORT, R. I.

THE TYPICAL 40pA BIAS CURRENT OF THE LT1097

WILL DEGRADE THE STANDARD CELL BY ONLY

1ppm/YEAR. NOISE IS A FRACTION OF A ppm.

UNPROTECTED GATE MOSFET ISOLATES

STANDARD CELL ON POWER DOWN.

–

+

LT1097

INPUT OFFSET VOLTAGE (

µV)

–50 –40 –30 –20 –10 0

10 20 30 40 50

LT1097 • G01

50

40

30

20

10

0

6,500 UNITS IN SO PACKAGE

6,680 UNITS IN

PLASTIC

DIP

13,180 UNITS

TESTED

Input Offset Voltage Distribution

Saturated Standard Cell Amplifier