LM432 Datasheet, PDF (1/3 Pages) National Semiconductor (TI) – Dual Op Amp with On-Chip Fixed 2.5V Reference

July 2001
LM432
Dual Op Amp with On-Chip Fixed 2.5V Reference
General 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. Integrat-
ing the reference and Op Amps creates a solution for low
cost charging applications.
Applications
n Low cost charging circuitry
n Power supplies and adapters
Features
Dual Op Amp Circuitry
(Typical for V_S= 5V)
n Input offset voltage
0.6mV
n Input offset current
1nA
n Input bias current
3nA
n Common-mode input voltage range
n Power supply current
0V to V_S−1V
150µA
Reference Circuitry
n Reference voltage
2.5V
n Reference voltage deviation (−40˚C to 85˚C)
4mV
n Sink Current Capability
0.2mA to 10mA
Connection Diagram
8-Pin SOIC
Application Circuit
Top View
10139001
10139002
Optocoupler Driver Circuit for Power Supply Isolation
Ordering Information
Package
Part Number
8-Pin SOIC
LM432MA
LM432MAX
Package Marking
LM432MA
LM432MA
Transport Media
Rails
2.5k Unit Tape and Reel
NSC
Drawing
M08A
© 2004 National Semiconductor Corporation DS101390
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