This paper analyzes and proposes a fully differential amplifier with PVT-compensated boosted gain. The amplifier, based on the conventional differential pair with a trimmed cross-coupled bulk active load, has been implemented and simulated in 28 nm bulk CMOS technology and supplied by 0.5 V. The amplifier provides, for a quiescent current of 100 nA, a constant gain bandwidth product (GBW) of 1.3 MHz, in the worst case corners, and a differential gain and CMRR, equal to 65.59 dB and 83.31 dB, respectively. The amplifier outperforms stable features in the temperature range from 80 °C down to -100 °C and across the process corners.
A Fully Differential Amplifier with active load using cross-coupled bulk to enhance the gain and CMRR
Nisar K.
Primo
;Ballo A.;Grasso A. D.
2025-01-01
Abstract
This paper analyzes and proposes a fully differential amplifier with PVT-compensated boosted gain. The amplifier, based on the conventional differential pair with a trimmed cross-coupled bulk active load, has been implemented and simulated in 28 nm bulk CMOS technology and supplied by 0.5 V. The amplifier provides, for a quiescent current of 100 nA, a constant gain bandwidth product (GBW) of 1.3 MHz, in the worst case corners, and a differential gain and CMRR, equal to 65.59 dB and 83.31 dB, respectively. The amplifier outperforms stable features in the temperature range from 80 °C down to -100 °C and across the process corners.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
