A Low-Power Fully-Differential CMOS Operational Transconductance Amplifier for A/D Converters
نویسندگان
چکیده
The design of a fully differential CMOS transconductance amplifier is presented in this paper. This amplifier is to be used in the first stage of a 13-bit pipelined A/D converter, and was designed to meet the necessary specifications at a minimum level of power consumption. The amplifier presented below was based on a two-stage design of a telescopic cascode input stage followed by a common-source output gain stage. The amplifier was compensated with a variation of Miller compensation in order to achieve maximum bandwidth. The amplifier designed meets all performance specifications and consumes less than 2 mW of power.
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