access icon free Compensation strategy for high-speed three-stage switched-capacitor amplifiers

In this Letter a new compensation strategy for a class of three-stage operational transconductance amplifiers is proposed. The proposed approach reduces the original third-order transfer function of the loop gain to that of a pure two-pole amplifier thus allowing the designer to use well-known and consolidated design rules. The approach, suitable for high-speed switched-capacitor circuits, is validated by means of intensive Monte Carlo simulations on a 65-nm three-stage CMOS amplifier.

Inspec keywords: CMOS analogue integrated circuits; Monte Carlo methods; operational amplifiers; switched capacitor networks; compensation

Other keywords: compensation strategy; three-stage operational transconductance amplifiers; loop gain; third-order transfer function; three-stage CMOS amplifier; high-speed three-stage switched-capacitor amplifiers; Monte Carlo simulations; size 65 nm

Subjects: CMOS integrated circuits; Time varying and switched networks; Amplifiers

http://iet.metastore.ingenta.com/content/journals/10.1049/el.2016.1210
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content/journals/10.1049/el.2016.1210
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