Title :
A ping-pong-pang current-feedback instrumentation amplifier with 0.04% gain error
Author :
Sakunia, Saket ; Witte, Frerik ; Pertijs, Michiel ; Makinwa, Kofi
Author_Institution :
Delft Univ. of Technol., Delft, Netherlands
Abstract :
A ping-pong-pang auto-zeroed and chopped current-feedback instrumentation amplifier (CFIA) uses three dynamically-matched input stages to achieve 0.04% gain error, a 2.5× improvement over prior art. Its 4 μV offset and 28 nV/√Hz noise are achieved at 3.5× less supply current than a comparable ping-pong auto-zeroed CFIA.
Keywords :
feedback amplifiers; instrumentation amplifiers; auto-zeroed instrumentation amplifier; chopped current-feedback instrumentation amplifier; gain error; ping-pong-pang current-feedback instrumentation amplifier; Accuracy; Clocks; Gain measurement; Instruments; Noise; Power demand; Switches; DEM; auto-zero; instrumentation amplifier; low-offset;
Conference_Titel :
VLSI Circuits (VLSIC), 2011 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-61284-175-5
