发明名称 Sensor amplifier arrangement and method for amplification of a sensor signal
摘要 A sensor amplifier arrangement includes an amplifier having a signal input to receive a sensor signal and a signal output to provide an amplified sensor signal, and a feedback path that couples the signal output to the signal input and provides a feedback current that is an attenuated signal of the amplified sensor signal and is inverted with respect to the sensor signal.
申请公布号 US9300259(B2) 申请公布日期 2016.03.29
申请号 US201213438975 申请日期 2012.04.04
申请人 ams AG 发明人 Fröhlich Thomas;Steiner Matthias
分类号 H03L5/00;H03F1/02;H03F3/187;H03F1/34 主分类号 H03L5/00
代理机构 DLA Piper LLP (US) 代理人 DLA Piper LLP (US)
主权项 1. A sensor amplifier arrangement comprising: an amplifier having a signal input to receive a sensor signal and a signal output to provide an amplified sensor signal, and a feedback path that couples the signal output to the signal input and comprises an anti-parallel circuit of diodes, an offset signal source, and an adder comprising: a first input coupled to the signal output, a second input coupled to the offset signal source, and an output coupled to the signal input via the anti-parallel circuit of diodes, wherein the feedback path comprises a feedback amplifier coupling the signal output to the first input of the adder.
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