US 11,669,120 B2
Current mirror circuit
Mark Allan Shill, Tucson, AZ (US); and Binan Wang, Tucson, AZ (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jun. 16, 2022, as Appl. No. 17/807,202.
Application 17/807,202 is a division of application No. 17/347,951, filed on Jun. 15, 2021, granted, now 11,409,318.
Application 17/347,951 is a division of application No. 16/722,011, filed on Dec. 20, 2019, granted, now 11,068,010.
Prior Publication US 2022/0308616 A1, Sep. 29, 2022
Int. Cl. G05F 3/26 (2006.01); H03M 1/78 (2006.01)
CPC G05F 3/262 (2013.01) [H03M 1/785 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A current mirror circuit, comprising:
a current output terminal;
a first transistor comprising:
a source terminal coupled to a power rail;
a gate terminal coupled to a current source; and
a drain terminal coupled to the gate terminal;
a second transistor comprising:
a source terminal coupled to the power rail;
a gate terminal coupled to the gate terminal of the first transistor; and
a drain terminal coupled to the current output terminal;
a digital-to-analog converter (DAC) comprising:
an output terminal coupled to the source terminal of the second transistor; and
a plurality of resistors coupled in series between the power rail and the source terminal of the second transistor.