A universal sensor signal conditioning ASIC
Zheng Zheng
Raminder
Singh, J.
Sridhar, U.
Tan Khen-Sang
Inst. of Microelectron.;
This paper appears in: ASICs, 1999. AP-ASIC '99. The First IEEE Asia Pacific Conference on
Publication Date: 1999
On page(s): 120-126
Meeting Date: 08/23/1999 - 08/25/1999
Location: Seoul, South Korea
ISBN: 0-7803-5705-1
References Cited: 4
INSPEC Accession Number: 6581915
Digital Object Identifier: 10.1109/APASIC.1999.824043
Current Version Published: 2002-08-06
Abstract
This paper described a low cost universal sensor signal condition
ASIC for bridge type sensors. The ASIC was produced with standard double
metal, double poly 0.8 μm silicon CMOS process and can correct the
sensor's offset, offset temperature coefficient, sensitivity and
sensitivity temperature coefficient. We have used this ASIC to signal
condition silicon piezo-resistive pressure sensor to a total error of
less than ±1% of the sensor's full scale output (FSO) in a
temperature range of -40°C to 125°C. The ASIC can provide a low
cost solution for the calibration of bridge type sensors such as
pressure sensor, Hall effect sensor and MR/GMR sensor
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