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LT1635

Micropower Rail-to-Rail

Op Amp and Reference

FEATURES

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Guaranteed Operation at 1.2V

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Op Amp and Reference on Single Chip

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Micropower: 130

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Industrial Temperature Range SO-8 Packages

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Rail-to-Rail Output

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High Output Current: 25mA Min

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Output Drives 1000pF

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Capable of Floating Mode Operation

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Specified for 5V and

±5V Supplies

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Low Reference Drift: 30ppm/

°C

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Industry Standard LM10 Pinout

The LT

rail-to-rail output op amp, a precision reference and reference

buffer. The device operates from supplies as low as a single

1.2V or up to

±5V, yet it consumes only 130µA of supply

current.

The input common mode range of the op amp includes

ground and incorporates phase reversal protection to pre-

vent false outputs from occurring when the input is below

the negative supply. The rail-to-rail output stage can swing to

within 15mV of each rail with no load and can swing to within

250mV of each rail while delivering 10mA of output current.

The gain bandwidth of the op amp is 175kHz and it is unity-

gain stable with up to 1000pF load capacitance.

amplifier to enhance flexibility. The reference and buffer

combine to achieve a drift of 30ppm/

°C, a line regulation of

20ppm/ V and a load regulation of 150ppm/mA.

The LT1635 is available in 8-pin PDIP and SO packages, and

has the industry standard LM10 pinout.

LT1635

R1

100k

ADJ

0V TO 5V

R2

3.9k

R3

5k

C1

0.01

µF

6

7

2

3

1

8

1635 TA01

4

INPUT OFFSET VOLTAGE (mV)

– 1.0

15

20

25

0.6

1635 TA02

10

5

0

– 0.6

– 0.2

0.2

1.0

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

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Battery- or Solar-Powered Systems

Portable Instrumentation

Sensor Conditioning

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Precision Current Regulators

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Precision Voltage Regulators

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Battery Level Indicator

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Thermocouple Transmitter

0V to 5V Regulator

Typical Distribution of Input Offset Voltage