National Semiconductor LP324, LP2902 Micropower Quad Operational Amplifier Data Sheet
Summary
Designed for portable and battery-powered systems, this micropower quad operational amplifier delivers exceptional performance with ultra-low supply current and minimal power consumption. Ideal for instrumentation and backup equipment requiring reliable DC operation in single-supply or low-voltage environments. This technical manual provides comprehensive specifications, including detailed electrical characteristics, absolute maximum ratings, wide voltage compatibility (3V to 32V), and packaging options for easy integration into your next circuit design.
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LP 324/LP icropow er uad perational A plifier
LP324/LP2902 Micropower Quad Operational Amplifier General Description Features
The LP324 series consists of four independent, high gain Low supply current: 85µA (typ)
internally compensated micropower operational amplifiers. Low offset voltage: 2m V (typ) These amplifiers are specially suited for operation in battery Low input bias current: 2n A (typ) systems while maintaining good input specifications, and
Input common mode to GND
extremely low supply current drain. In addition, the LP324
Interfaces to CMOS logic
has an input common mode range, and output source range
Wide supply range: 3V V+ 32V
which includes ground, making it ideal in single supply ap-
Small Outline Package available
plications.
Pin-for-pin compatible with LM324
These amplifiers are ideal in applications which include por- table instrumentation, battery backup equipment, and other circuits which require good DC performance and low supply current.
Connection Diagrams
Dual-In-Line (N) and SO (M) 14-Pin TSSOP
Order Number LP324M or LP2902M See NS Package Number M14A
Order Number LP324MT and LP324MTX
Order Number LP324N or LP2902N
See NS Package Number MTC14
See NS Package Number N14A
Simplified Schematic
National Semiconductor Corporation DS008562 www.national.com
Page Summary Contents For National Semiconductor LP324, LP2902 Micropower Quad Operational Amplifier Data Sheet
Manual Details
| Brand | National |
|---|---|
| Pages | 11 |
| File Size | 361.14 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
Is this amplifier chip compatible with existing designs?
Yes, these micropower operational amplifiers are pin-for-pin compatible with LM324.
What is the required input signal voltage range?
The wide supply range allows operation between 3V and 32V, making it ideal for single-supply applications.
How efficient is this device in low-power battery systems?
It features a low typical supply current of 85μA, suitable for portable instrumentation and battery backup equipment.
What safety warnings are needed when using the output pins?
Short circuits from the output to GND can cause excessive heating and eventual destruction.