LP2995LQX 데이터시트 PDF

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July 2001

LP324/LP2902

Micropower Quad Operational Amplifier

General Description

The LP324 series consists of four independent, high gain

internally compensated micropower operational amplifiers.

These amplifiers are specially suited for operation in battery

systems while maintaining good input specifications, and

extremely low supply current drain. In addition, the LP324

has an input common mode range, and output source range

which includes ground, making it ideal in single supply ap-

plications.

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.

Features

n Low supply current: 85µA (typ)

n Low offset voltage: 2mV (typ)

n Low input bias current: 2nA (typ)

n Input common mode to GND

n Interfaces to CMOS logic

n Wide supply range: 3V < V+ < 32V

n Small Outline Package available

n Pin-for-pin compatible with LM324

Connection Diagrams

Dual-In-Line (N) and SO (M)

14-Pin TSSOP

00856201

Order Number LP324M or LP2902M

See NS Package Number M14A

Order Number LP324N or LP2902N

See NS Package Number N14A

Simplified Schematic

00856240

Order Number LP324MT and LP324MTX

See NS Package Number MTC14

00856202

© 2001 National Semiconductor Corporation DS008562

www.national.com

Typical Performance Curves

Input Voltage Range

Input Current

Supply Current

00856221

Voltage Gain

00856222

Open Loop

Frequency Response

00856223

Power Supply

Rejection Ratio

00856224

www.national.com

00856225

4

00856226

Application Hints (Continued)

Comparator with Hysteresis

00856206

Non-Inverting Amplifier

00856204

Adder/Subtractor

Unity Gain Buffer

00856207

00856205

Positive Integrator

00856208

Differential Integrator

00856209

Howland Current Pump

00856210

Bridge Current Amplifier

µ Power Current Source

00856211

00856212

7 www.national.com

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