Fully differential CMOS programmable analogue sensor interface based on fully differential multiple differences amplifiers

机译：基于全差分多差分放大器的全差分CMOS可编程模拟传感器接口

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A new fully differential programmable CMOS analogue interface for data acquisition in smart sensor microsystems is proposed. The architecture of this analogue front end comprises three fully differential modules which topology is based on a new Fully Differential Multiple Differences Amplifier cell. This sensor interface includes a multiple input instrumentation amplifier with variable gain, a biquadratic low-pass anti-aliasing filter with tuneable cut-off frequency, and an optional fixed gain multi-input differential voltage amplifier. Each module is described, with special focus on the procedures for automatic calibration and adjustment of voltage gain and offset and cutoff frequency. Simulation results of the developed modules are presented and discussed. Finally some advantages of this structure are pointed out.

机译：提出了一种新的全差分可编程CMOS模拟接口，用于智能传感器微系统中的数据采集。该模拟前端的架构包括三个全差分模块，拓扑基于新的全差分多差放大器单元。该传感器接口包括具有可变增益的多输入仪表放大器，具有可调截止频率的双层低通抗混叠滤波器，以及可选的固定增益多输入差分电压放大器。描述了每个模块，特别关注自动校准和电压增益和偏移和截止频率的程序。提出和讨论了开发模块的仿真结果。最后指出了这种结构的一些优点。

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《IEEE International Conference on Electronics, Circuits and Systems》|2001年||共4页
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Antonio J. Gano; Nuno F. Especial;
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4. Fully differential CMOS programmable analogue sensor interface based on fully differential multiple differences amplifiers [C] . Gano, A.J., Especial, Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on . 2001

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Fully differential CMOS programmable analogue sensor interface based on fully differential multiple differences amplifiers

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