SM3800A数据手册NPC中文资料规格书

描述 Description

SM3800A is an amplifier IC developed to amplify infinitesimal signals of resistance type sensors. Built-in auto bias function enables DC output voltage that is not affected by the time constant. Moreover, it enables high gain output which was difficult with the circuit composed of existing discrete parts.Two instrumentation amplifiers are built in, and internally added signals are output.

特性 Features

・Equipped with auto-bias function, which cancels input offset voltage in the measuring environment and adjusts initial output voltage level to 1/2VDD
・AC coupling condenser is not necessary, that enables signal output without influence of input time constant compared with circuits composed of discrete parts
・Ideal for amplifying input signal difference so infinitesimal as around 1mV
・Two instrumentation amplifiers built-in

应用 Application

Resistance bridge type sensor (magnetic, strain, pressure etc.)