Opamp with 106 dB DC gain in 120nm digital CMOS

Schlogl, F.; Zimmermann, Horst

doi:10.1109/esscirc.2003.1257152

Cited by 2 publications

(1 citation statement)

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“…In the presented operational amplifier design, we use a robust common-mode control circuit, which leads to a class-AB behaviour of the output stage. Compared to the seemingly simpler realization with one common-mode controller in [16] the presented common-mode control technique is proven in 120 nm CMOS test chips [15,17] and is not sensitive to mismatch. With this design example, we showed that it is possible to reach high gain with a three-stage two-signal-path concept.…”

Section: Resultsmentioning

confidence: 99%

A design example of a 65 nm CMOS operational amplifier

Schlogl

Zimmermann

2007

Circuit Theory & Apps

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SUMMARYIn this paper, we discuss the properties of new nanometer-size CMOS technologies being important for the circuit designer. Thereby we concentrate on analogue circuit design. In the literature, the gain reduction by the high output conductance of the transistors is discussed. In detail, we further describe gain reduction due to gate-leakage current. Finally, we present a design example of a fully differential operational amplifier in a 65 nm CMOS technology including results.

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Section: Resultsmentioning

confidence: 99%