US 11,940,831 B2
Current generator for memory sensing
Cristinel Zonte, Colorado Springs, CO (US)
Assigned to Infineon Technologies LLC, San Jose, CA (US)
Filed by Infineon Technologies LLC, San Jose, CA (US)
Filed on Mar. 3, 2022, as Appl. No. 17/653,409.
Claims priority of provisional application 63/286,875, filed on Dec. 7, 2021.
Prior Publication US 2023/0176604 A1, Jun. 8, 2023
Int. Cl. G11C 16/30 (2006.01); G05F 3/26 (2006.01); G11C 16/04 (2006.01); G11C 16/26 (2006.01)
CPC G05F 3/265 (2013.01) [G11C 16/0466 (2013.01); G11C 16/26 (2013.01); G11C 16/30 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A circuit comprising:
a trimmable reference current generator having a temperature dependent current output node, the trimmable reference current generator comprising:
a proportional to absolute temperature (PTAT) current generation circuit;
a first programmable current scaling circuit coupled to the PTAT current generation circuit and comprising a first output coupled to the temperature dependent current output node;
a constant current generation circuit;
a second programmable current scaling circuit coupled to the constant current generation circuit and comprising a first output coupled to the temperature dependent current output node; and
a reference interface circuit having an input coupled to the temperature dependent current output node and an output configured to be coupled to a reference current input of a memory sense amplifier.