Transconductance amplifiers with compensation

摘要

An amplifier circuit (100) comprising a first operational transconductance (52) amplifier (OTA) has an input that communicates with the output of a first amplifier (53). A third amplifier (62) has an input that communicates with the Input of the first amplifier (53) and an output. A fourth OTA (55) has an input that communicates with the output of the third amplifier (62) and an output. A feedback resistance (70) communicates with the input and the output of the fourth OTA (55). A capacitance (76) communicates with the output of the fourth OTA (55) and with the input of a second OTA (54).