LMP2021 - National Semiconductor

LMP2021 (LMP2021 / LMP2022) EMI Hardened Amplifiers

The LMP2021/LMP2022 are single and dual precision operational amplifiers offering ultra low input offset voltage, near zero input offset voltage drift, very low input voltage noise and very high open loop gain. They are part of the LMP® precision family and are ideal for instrumentation and sensor interfaces. The LMP2021/LMP2022 have only 0.004 µV/°C of inpu.

Features

(Typical Values, TA = 25°C, VS = 5V) −0.4 µV
■ Input offset voltage (typical) ±5 µV
■ Input offset voltage (max) -0.004 µV/°C
■ Input offset voltage drift (typical) ±0.02 µV/°C
■ Input offset voltage drift (max) 11 nV/√Hz
■ Input voltage noise, AV = 1000 160 dB
■ Open loop gain 139 dB
■ CMRR 130 dB
■ PSRR 2.2V to 5.5V
■ Supply voltage range 1.1 mA
■ Supply current (per amplifier) ±25 pA
■ Input bias current 5 MHz
■ GBW 2.6 V/µs
■ Slew rate −40°C to 125°C
■ Operating temperature range
■ 5-Pin SOT-23, 8-Pin MSOP and 8-Pin SOIC Packages Applications
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■ Precision instrumentation amplifiers B.