Differential to Single Ended Folded Cascode Opamp Design

Anachip said:

Hi,

I'm looking forward for a opamp design with 70 to 80dB gain in 0.18um CMOS with 1.8V power supply. My opamp need to be differential to single ended output to be used as an error amplifier. Please suggest me any folded cascode opamp (NMOS input stage) with single ended output. Any journals or technical paper of schematic will be helpful.

Thanks,
Anachip.

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Chethan said:

Anachip said:

Hi,

I'm looking forward for a opamp design with 70 to 80dB gain in 0.18um CMOS with 1.8V power supply. My opamp need to be differential to single ended output to be used as an error amplifier. Please suggest me any folded cascode opamp (NMOS input stage) with single ended output. Any journals or technical paper of schematic will be helpful.

Thanks,
Anachip.

Click to expand...

U can refer to these papers..

"The CMOS gain-boosting technique" K Bult, GJGM Geelen - Analog Integrated Circuits and Signal Processing, 1991

"A-90-dB THD rail-to-rail input opamp using a new local charge pump in CMOS"TAF Duisters, EC Dijkmans - IEEE Journal of Solid-State Circuits, 1998

"1-V power supply CMOS cascode amplifier"T Lehmann, M Cassia - IEEE Journal of Solid-State Circuits, 2001

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