LM432

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SNOS538D – AUGUST 2000 – REVISED MARCH 2013

LM432 Dual Op Amp with On-Chip Fixed 2.5V Reference

Check for Samples: LM432

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FEATURES

APPLICATIONS

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Dual Op Amp Circuitry

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Low Cost Charging Circuitry

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Power Supplies and Adapters

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Input Offset Voltage 0.6mV

DESCRIPTION

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Input Offset Current 1nA

The LM432 integrates two operational amplifiers and

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Input Bias Current 3nA

one 2.5V reference. The reference is based on the

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Common-Mode Input Voltage Range 0V to

LMV431 adjustable shunt regulator with the output

voltage adjusted to a fixed 2.5V. The Op Amps are

similar to the LM358 with a common-mode input

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Power Supply Current 150µA

range that includes ground. Integrating the reference

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Reference Circuitry

and Op Amps creates a solution for low cost charging

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Reference Voltage 2.5V

applications.

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Reference Voltage Deviation (

−40°C to 85°C)

4mV

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Sink Current Capability 0.2mA to 10mA

Connection Diagram

Figure 1. 8-Pin SOIC (Top View)

See Package Number D

Application Circuit

Figure 2. Optocoupler Driver Circuit for Power Supply Isolation

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Products conform to specifications per the terms of the Texas

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