US 11,876,530 B2
Low power bi-directional architecture for current output digital to analog conversion
Atul Kumar Agrawal, Bangalore (IN); and Kanak Chandra Das, Bangalore (IN)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Sep. 30, 2021, as Appl. No. 17/491,391.
Prior Publication US 2023/0100835 A1, Mar. 30, 2023
Int. Cl. H03M 1/78 (2006.01); H03M 1/74 (2006.01); H03M 1/66 (2006.01)
CPC H03M 1/785 (2013.01) [H03M 1/662 (2013.01); H03M 1/742 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a voltage-to-current circuit including a first input terminal, a first output terminal and a second output terminal;
a subtraction circuit including a second input terminal and a third output terminal, the second input terminal coupled to the second output terminal;
a first driver circuit including a third input terminal and a fourth output terminal, the third input terminal coupled to the third output terminal; and
a second driver circuit including a fourth input terminal and a fifth output terminal, the fourth input terminal coupled to the first output terminal, the fifth output coupled to the fourth output terminal.