LM432 Datasheet, PDF (1/9 Pages) National Semiconductor (TI) – Dual Op Amp with On-Chip Fixed 2.5V Reference

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
FEATURES
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•2 Dual Op Amp Circuitry
• (Typical for V_S= 5V)
• Input Offset Voltage 0.6mV
• Input Offset Current 1nA
• Input Bias Current 3nA
• Common-Mode Input Voltage Range 0V to
V_S−1V
• Power Supply Current 150µA
• Reference Circuitry
• Reference Voltage 2.5V
• Reference Voltage Deviation (−40°C to 85°C)
4mV
• Sink Current Capability 0.2mA to 10mA
APPLICATIONS
• Low Cost Charging Circuitry
• Power Supplies and Adapters
DESCRIPTION
The LM432 integrates two operational amplifiers and
one 2.5V reference. The reference is based on the
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
range that includes ground. Integrating the reference
and Op Amps creates a solution for low cost charging
applications.
Connection Diagram
Application Circuit
Figure 1. 8-Pin SOIC (Top View)
See Package Number D
Figure 2. Optocoupler Driver Circuit for Power Supply Isolation
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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