Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1999-05-12
2000-11-21
Mottola, Steven J.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330292, H03F 345
Patent
active
061508845
ABSTRACT:
Inclusion of a current mirror circuit and differential amplifier in the input amplifier stage 10 and a current mirror circuit in the feed-forward amplifier stage 12 of the nested transconductance capacitance compensation multistage amplifier design provides a low-voltage multistage amplifier having less sensitivity to power supply voltage while retaining frequency domain advantages. The nested transconductance capacitance compensation multistage amplifier includes an input differential amplifier stage 10, a feed-forward amplifier stage 12, and an output amplifier stage 14. This design improves the power supply rejection of the multistage operational amplifier.
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Brady W. James
Mosby April M.
Mottola Steven J.
Telecky Jr. Frederick J.
Texas Instruments Incorporated
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