US 12,407,360 B2
Circuit and method for calibration of a digital-to-analog converter
Jan Mulder, Houten (NL); Frank Van der Goes, Zeist (NL); Mohammadreza Mehrpoo, Eindhoven (NL); Sijia Wang, Utrecht (NL); and Jeffrey Allan Riley, Utrecht (NL)
Assigned to Avago Technologies International Sales Pte. Limited, Singapore (SG)
Filed by AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED, Singapore (SG)
Filed on Aug. 19, 2022, as Appl. No. 17/891,871.
Prior Publication US 2024/0063809 A1, Feb. 22, 2024
Int. Cl. H03M 1/10 (2006.01)
CPC H03M 1/1042 (2013.01) 20 Claims
OG exemplary drawing
 
1. A digital-to-analog converter (DAC), comprising:
a plurality of unit cells configured to receive a digital input from a processing circuit and convert the digital input to analog outputs,
an engine configured to:
designate one of the plurality of unit cells as a reference cell with a first value; and
calibrate the first value using a value of the unit cells, wherein the value is a delay value,
wherein the digital input is provided to a first unit cell and has an opposite sign to the digital input provided to the reference cell.