Title :
A Current-Feedback Instrumentation Amplifier with 5μV Offset for Bidirectional High-Side Current-Sensing
Author :
Witte, J.F. ; Huijsing, J.H. ; Makinwa, K.A.A.
Author_Institution :
Delft Univ. of Technol., Delft
Abstract :
In this paper, a current-feedback instrumentation amplifier for bidirectional high-side current-sensing is proposed. The current sense amplifier was fabricated in a 0.8mum BICMOS process with high-voltage transistors and laser-trimmed thin-film resistors. It is concluded that these amplifiers offer a new level of precision in current sensing.
Keywords :
BiCMOS integrated circuits; electric current measurement; instrumentation amplifiers; power integrated circuits; thin film resistors; BICMOS process; bidirectional high-side current-sensing; current sense amplifier; current-feedback instrumentation amplifier; high-voltage transistors; laser-trimmed thin-film resistors; size 0.8 mum; voltage 5 muV; Capacitors; Clocks; Frequency; Instruments; MOS devices; Operational amplifiers; Resistors; Topology; Transconductors; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2008. ISSCC 2008. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-2010-0
Electronic_ISBN :
978-1-4244-2011-7
DOI :
10.1109/ISSCC.2008.4523063
