Programmable two-quadrant transconductance amplifier

Details Programmable two-quadrant transconductance amplifier Programmable two-quadrant transconductance amplifier

H - Electricity

03

F

354/102, 330/20

H03F 3/45 (2006.01) H03G 3/00 (2006.01) H03K 4/02 (2006.01) H03M 1/00 (2006.01)

Patent

CA 1160752

11 PROGRAMMABLE TWO-QUADRANT TRANSCONDUCTANCE AMPLIFIER Abstract Two multiplying digital-to-analog converters are used to digitally weight an analog current to produce a controllable output current. The output current is selected by a digital control signal applied to the control inputs of both converters. Two-quadrant opera- tion is ensured by feeding the analog output of each converter to a current mirror amplifier which develops the required output current.

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