LM321 Datasheet PDF - National

General Description

●The LM221 series are precision preamplifiers designed to operate with general purpose operational amplifiers to dras tically 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.

●Features

●Guaranteed drift of LM321AÐ0.2 mV/§C

●Guaranteed drift of LM221 seriesÐ1 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