Title
A Low Cost Readout And Processing Circuit For Integrated Cmos Geomagnetic Sensors
Abstract
This paper presents a readout and processing circuit that is integrated with CMOS geomagnetic sensor based on Hall Effect. Due to the demanding requirement in battery-powered chip, a low cost of area and power consumption design was implemented. The technique of chopper-stable structure and bipolar input transistor were adopted to reduce noise and offset. A low power dual-slope ADC follows the readout front-end and output digital output, whose integrator adopts a chopper amplifier to get improvement on precision. On chip oscillator increases the practicability of the whole circuit. The prototype circuit technology. The experimental result shows that with a supply of 3.3V, the whole power is 2.1mW and the sensitivity is 20nV/LSB
Year
Venue
Field
2015
PROCEEDINGS OF 2015 IEEE 11TH INTERNATIONAL CONFERENCE ON ASIC (ASICON)
Computer science,Integrator,CMOS,Chip,Electronic engineering,Chopper,Transistor,Electrical engineering,Offset (computer science),Amplifier,Least significant bit
DocType
ISSN
Citations 
Conference
2162-7541
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Ke Liu12016.97
Renwei Zhang200.34
Zhankun Du300.34
Li Shao400.34
Xiao Ma525234.88