A 0.8V, 7μA, rail-to-rail input/output, constant Gm operational amplifier in standard digital 0.18μm CMOS

J Citakovic, I. Riis Nielsen, Jannik Hammel Nielsen, P Asbeck, Pietro Andreani

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Abstract

A two-stage amplifier, operational at 0.8V and drawing 7μA, has been integrated in a standard digital 0.18μm CMOS process. Rail-to-rail operations at the input are enabled by complementary transistor pairs with gm control. The efficient rail-to-rail output stage is biased in class AB. The measured DC gain of the amplifier is 75dB, and the unity-gain frequency is 870kHz with a 12pF, 100kΩload. Both input and output stage transistors are biased in weak inversion.
Original languageEnglish
Title of host publication23rd NORCHIP Conference, 2005.
PublisherIEEE
Publication date2005
ISBN (Print)1-4244-0064-3
DOIs
Publication statusPublished - 2005
Event23rd NORCHIP Conference - Oulu, Finland
Duration: 21 Nov 200522 Nov 2005

Conference

Conference23rd NORCHIP Conference
Country/TerritoryFinland
CityOulu
Period21/11/200522/11/2005

Bibliographical note

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