US 12,192,662 B2
Image sensor amplifiers with reduced inter-circulation currents
Anilkumar Prathipati, Evere (BE)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed on Mar. 28, 2023, as Appl. No. 18/191,594.
Application 18/191,594 is a continuation of application No. 16/948,724, filed on Sep. 30, 2020, granted, now 11,647,313.
Prior Publication US 2023/0232134 A1, Jul. 20, 2023
Int. Cl. H03F 3/45 (2006.01); H04N 25/75 (2023.01); H04N 25/778 (2023.01)
CPC H04N 25/778 (2023.01) [H03F 3/45264 (2013.01); H04N 25/75 (2023.01); H03F 2200/129 (2013.01); H03F 2203/45116 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Circuitry comprising:
a first amplifier and a second amplifier, each of which comprises:
a first transistor having a gate terminal configured as a first input port,
a second transistor having a gate terminal configured as a second input port,
a third transistor coupled in series with the first transistor,
a fourth transistor coupled in series with the second transistor and cross-coupled with the third transistor, and
a fifth transistor coupled in series with the third transistor and having a gate terminal coupled to a node between the first and third transistors;
a first circuit having a power supply terminal coupled to an output of the first amplifier, wherein the first input port of the first amplifier is shorted to the output of the first amplifier; and
a second circuit having a power supply terminal coupled to an output of the second amplifier and shorted to the output of the first amplifier.