LM221 - LM221/LM321 Precision Preamplifiers

Product Overview

National Semiconductor

Datasheet Details

Part number	LM221
Manufacturer	National Semiconductor
File Size	207.32 KB
Description	LM221/LM321 Precision Preamplifiers
Datasheet	LM221 Datasheet
Additional preview pages of the LM221 datasheet.

Product details

Description

The LM221 series are precision preamplifiers designed to operate with general purpose operational amplifiers to drastically decrease dc errors Drift bias current common mode and supply rejection are more than a factor of 50 better than standard op amps alone Further the added dc gain of the LM221 decreases the closed loop gain error The LM221 series operates with supply voltages from g 3V to g 20V and has sufficient supply rejection to operate from unregulated supplies The operating current is p

Features

Y Y Y Y Y Y Y Guaranteed drift of LM321A 0 2 mV C Guaranteed drift of LM221 series 1 mV C Offset voltage less than 0 4 mV Bias current less than 10 nA at 10 mA operating current CMRR 126 dB minimum 120 dB supply rejection Easily nulled offset voltage Typical.

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Published: Mar 22, 2005 |