Signal conditioning circuitry design for instrumentation systems.

Larsen, Cory A.

Sandia National Laboratories

关键词: Transducers;    Amplitudes;    Implementation;    Analog-To-Digital Converters;    Sensors;   

DOI  :  10.2172/1034887
RP-ID  :  SAND2011-9467
RP-ID  :  AC04-94AL85000
RP-ID  :  1034887

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report details the current progress in the design, implementation, and validation of the signal conditioning circuitry used in a measurement instrumentation system. The purpose of this text is to document the current progress of a particular design in signal conditioning circuitry in an instrumentation system. The input of the signal conditioning circuitry comes from a piezoresistive transducer and the output will be fed to a 250 ksps, 12-bit analog-to-digital converter (ADC) with an input range of 0-5 V. It is assumed that the maximum differential voltage amplitude input from the sensor is 20 mV with an unknown, but presumably high, sensor bandwidth. This text focuses on a specific design; however, the theory is presented in such a way that this text can be used as a basis for future designs.