A programmable instrumentation amplifier for 12-bit resolution systems
- 1 December 1982
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 17 (6), 1102-1111
- https://doi.org/10.1109/JSSC.1982.1051867
Abstract
Describes the design of and experimental results obtained from a monolithic gain-programmable instrumentation amplifier that attains performance compatible with 12-bit or higher resolution data acquisition systems. Nonlinearity is held to a 0.01 percent worst-case level over the -25 to 85/spl deg/C temperature range for gains of 1-1000, independent of process variations. Input and output voltage noise and offset drift are also reduced to low levels. A novel input overvoltage protection scheme is also described. The amplifier is fabricated on a standard-beta junction isolated bipolar process that has in addition process-compatible ion implanted JFETs and silicon-chromium thin-film resistors.Keywords
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