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National Semiconductor LM221/LM321 Precision Preamplifiers Datasheet
This document is a datasheet for the LM221 and LM321 series of precision preamplifiers from National Semiconductor. These devices are designed to operate with general-purpose operational amplifiers to significantly decrease DC errors, including drift, bias current, and common-mode rejection issues. The LM221 series is specified for a temperature range of -25°C to +85°C, while the LM321 is specified for 0°C to +70°C.
Read onlineNational Semiconductor LM321 specifications
| Operating Temperature Range (LM221) | -25°C to +85°C |
|---|---|
| Supply Voltage | +3V to +20V |
| Common-Mode Rejection Ratio | 126 dB minimum |
| Supply Voltage Rejection | 120 dB |
Source: National Semiconductor LM221/LM321 Precision Preamplifiers Datasheet
All National Semiconductor LM321 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the guaranteed drift of the LM321A?
The guaranteed drift of the LM321A is 0.2 µV/°C.
From: National Semiconductor LM221/LM321 Precision Preamplifiers Datasheet
What is the guaranteed drift of the LM221 series?
The guaranteed drift of the LM221 series is 1 µV/°C.
From: National Semiconductor LM221/LM321 Precision Preamplifiers Datasheet