What are the key noise considerations for a microphone preamplifier based on a transconductance amplifier?

This paper describes a systematic procedure for the design of a single-stage operational-transconductance amplifier (OTA) using the gm/ID methodology. A 93.36 dB, 161 MHz CMOS Operational Transconductance Amplifier (OTA) for a 16 Bit Pipeline Analog-to-Digital Converter (ADC) Aug 17, 2022 ... An OTA is a direct-coupled differential voltage-controlled current source (DVCCS) with high output impedance. Guru Gara Synth ... This is a dual VCA unit based on a LM13700 OTA for eurorack modular synthesisers. Each individual VCA section has an audio input, audio output ... Because of its extremely linear transconductance characteristics with respect to amplifier bias current, the CA3080 gained wide acceptance as a gain control ... Aug 7, 2002 ... A family of CMOS operational transconductance amplifiers (OTAs) has been designed for very small G/sub m/'s (of the order of nanoamperes per volt) May 24, 2021 ... The fully differential operational transconductance amplifier using a current subtractor biasing technique implemented [Citation6] in 0.35 μm ... In transconductance amplifiers the input signal is a voltage and its output signal is a current. The ideal transconductance amplifier provides an output current ... Transconductance is generally varied by two well-known techniques. In the first technique, bias current of differential pair MOSFETs is varied whereas in the ... This paper describes the principle and design of a CMOS low-power, low- voltage, chopped transconductance amplifier, for noise and offset reduction in mixed ...