A low-noise small-area operational amplifier using split active-feedback compensation technique View Full Text


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Article Info

DATE

2018-09

AUTHORS

Ippei Akita, Hicham Haibi, Makoto Ishida

ABSTRACT

A low-noise small-area three-stage operational amplifier is presented for arrayed sensor interface systems. The designed amplifier employs a novel small-area phase compensation scheme that allows a relatively high transconductance in the first stage, resulting in relatively low input-referred noise. The proposed amplifier implemented in a standard 180-nm CMOS process occupies an active area of only 0.015 mm2. The measurement results show that the amplifier achieves a 6.2-MHz gain-bandwidth product, an input-referred noise of 27 nV/√Hz, and a phase margin of 60°. The current dissipation is 177 μA at a power supply of 1.5 V. More... »

PAGES

555-564

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10470-018-1184-7

DOI

http://dx.doi.org/10.1007/s10470-018-1184-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1103185753


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