US 12,265,414 B2
Piecewise correction of errors over temperature without using on-chip temperature sensor/comparators
Praful Kumar Parakh, Kolkata (IN); Anand Kannan, Bangalore (IN); and Sunil Rafeeque, Bangalore (IN)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jul. 19, 2022, as Appl. No. 17/868,684.
Application 17/868,684 is a division of application No. 15/962,515, filed on Apr. 25, 2018, granted, now 11,409,317.
Application 15/962,515 is a division of application No. 14/949,390, filed on Nov. 23, 2015, granted, now 9,971,375, issued on May 15, 2018.
Claims priority of application No. 4946/CHE/2015 (IN), filed on Sep. 16, 2015.
Prior Publication US 2022/0350360 A1, Nov. 3, 2022
Int. Cl. G05F 3/24 (2006.01)
CPC G05F 3/245 (2013.01) 10 Claims
OG exemplary drawing
 
1. A reference generator comprising:
at least three reference current sources;
a first diode having an anode and a cathode wherein the anode is coupled to a first reference current source;
a second diode having an anode and a cathode wherein the cathode is coupled to a second reference current source;
adding logic circuitry coupled to the cathode of the first diode;
generation logic circuitry coupled to the adding logic circuitry;
wherein the cathode of the first diode is coupled to the anode of the second diode; and
wherein a third reference current source is coupled to the cathode of the first diode.