描述 Description

The LTC8381/8382 of single- and dual- channel operational amplifiers provides input?offset voltage correction for low offset (maximum ± 50 μV) and drift (maximum 0.15 μV/℃)?through the use of proprietary techniques. Featuring rail-to-rail input and output swings,and low quiescent current (typical 27 μA at 5 V supply) combined with a wide bandwidth of?350 kHz and very low noise (1.1 μVP-P at 0.1 to 10 Hz) makes this family very attractive for a?variety of battery-powered applications such as handsets, tablets, notebooks, and?portable medical devices. The low input bias current supports these amplifiers to be used?in applications with mega-ohm source impedances.



The LTC8381/8382 amplifiers are perfectly suited for applications that require precision?amplification of low level signals, in which error sources cannot be tolerated, even in?which high bandwidth and fast transition are needed. The rail-to-rail input and output?swings make both high-side and low-side sensing easy. The LTC8381/8382 amplifiers can?operate with a single supply voltage as low as 1.8V for 2-cell battery applications.



The LTC8381/8382 amplifers have enhanced EMI protection to minimize any?electromagnetic interference from external sources, and have high electro-static?discharge (ESD) protection (5-kV HBM). All models are specified over the extended

industrial temperature range of -40℃ to +125℃.

特性 Features

? DC Precision:
– ± 50 μV (maximum) VOS with a Drift of ± 0.15 μV/℃ (maximum)

應(yīng)用 Application

? Precision current sensing
? Battery-Powered Instruments:
– Consumer, Industrial, Medical, Notebooks