Name
Abstract | ||
|---|---|---|
A 0.35-mu m CMOS instrumentation amplifier with automatic gain control (AGC) system for the sensor interfaces is presented in this paper. The circuitry employs a chopper stabilization technique to significantly reduce the low-frequency noise and DC offset. The AGC is used in the system where the amplitude of an incoming signal can vary over a wide dynamic range. The AGC circuit provides relatively constant output amplitude in spite of the sensitivity of the sensor due to the parameter variations. Furthermore, the whole system has been kept fully differential operation in order to get higher immunity to environmental noise of supply voltages, clock feedthrough, charge injection, even harmonic distortion, etc. It features a gain of 53 +/- 17 dB with 25-kHz bandwidth. The equivalent input noise is about 1.13 mu V-pp at 98.2-kHz chopper frequency. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1109/ISCAS.2006.1692859 | 2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS |
Keywords | Field | DocType |
differential operators,harmonic distortion,low frequency noise,instrumentation amplifier,automatic gain control,gain control,circuits,dynamic range,cmos integrated circuits | Clock feedthrough,Total harmonic distortion,Dynamic range,Computer science,Instrumentation amplifier,Electronic engineering,Automatic gain control,Chopper,Equivalent input,Electrical engineering,Amplifier | Conference |
ISSN | Citations | PageRank |
0271-4302 | 1 | 0.37 |
References | Authors | |
3 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jun-Hong Weng | 1 | 16 | 3.77 |
| Chong-jng Yu | 2 | 1 | 0.37 |
| Ching-Yuan Yang | 3 | 227 | 36.15 |
| Peng-chang Yang | 4 | 1 | 0.37 |