US 12,461,549 B2
Bandgap reference circuit
Thierry Michel Alain Sicard, Auzeville Tolosane (FR)
Assigned to NXP USA, Inc., Austin, TX (US)
Filed by NXP USA, Inc., Austin, TX (US)
Filed on Oct. 3, 2022, as Appl. No. 17/937,686.
Claims priority of application No. 21306583 (EP), filed on Nov. 15, 2021.
Prior Publication US 2023/0152837 A1, May 18, 2023
Int. Cl. G05F 3/30 (2006.01)
CPC G05F 3/30 (2013.01) 19 Claims
OG exemplary drawing
 
18. A delta base-emitter voltage (ΔVbe) cell of a bandgap reference circuit, comprising:
a single first emitter connection; and
eight (8) second emitter connections constructed and arranged as a 3×3 array having the single first emitter connection at a center of the array surrounded by the eight (8) second emitter connections, and wherein the single first emitter connection is constructed and arranged to serially connect to a second emitter connection of a neighboring ΔVbe cell to form an electrical path with the neighboring ΔVbe cell; and
wherein the 3×3 array of the ΔVbe cell has an area of about 295 μm2 and the single first emitter connection at the center of the array is separated from a peripheral emitter of the eight (8) second emitter connections by a distance of about 4.3 μm.