DocumentCode
1040287
Title
A Precision High-Voltage Current Sensing Circuit
Author
Dake, Tuli ; Özalevli, Erhan
Author_Institution
Mixed-Signal Automotive Design Group, Texas Instrum. Inc., Dallas, TX
Volume
55
Issue
5
fYear
2008
fDate
6/1/2008 12:00:00 AM
Firstpage
1197
Lastpage
1202
Abstract
This paper presents a precision current sensor featuring a high voltage, high gain (~ 140 dB), and low input offset ( < 1 mV) current sense amplifier. This amplifier does not require offset trimming even for low offset applications. It is a single stage amplifier that has a common gate pMOS differential input pair, which makes it inherently stable. This amplifier topology allows for a wide input common-mode range, thus increasing the versatility of current sensing circuit.
Keywords
MIS devices; amplifiers; network topology; sensors; amplifier topology; common gate pMOS differential input pair; high-voltage current sensing circuit; offset current sense amplifier; wide input common-mode; Amplifier; CMOS; common; current; gain; gate; high; not given; offset; sense; voltage;
fLanguage
English
Journal_Title
Circuits and Systems I: Regular Papers, IEEE Transactions on
Publisher
ieee
ISSN
1549-8328
Type
jour
DOI
10.1109/TCSI.2008.916452
Filename
4435079
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