US 11,990,903 B1
Low-power low-voltage differential signaling receiver with signal distortion correction
Wenjing Yin, San Diego, CA (US); and Debesh Bhatta, San Diego, CA (US)
Assigned to QUALCOMM INCORPORATED, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Nov. 15, 2022, as Appl. No. 17/987,751.
Int. Cl. H03K 19/01 (2006.01); G06F 1/04 (2006.01); H03F 1/30 (2006.01); H03F 1/32 (2006.01); H03F 3/45 (2006.01); H03K 19/0185 (2006.01); H03K 19/20 (2006.01); H04B 1/16 (2006.01)
CPC H03K 19/018528 (2013.01) [G06F 1/04 (2013.01); H03F 1/301 (2013.01); H03F 1/3211 (2013.01); H03F 3/45273 (2013.01); H03K 19/20 (2013.01); H04B 1/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A low-voltage differential signaling receiver, comprising:
a differential pair of transistors configured to amplify a differential input voltage into a first differential voltage defined between a drain of a first transistor in the differential pair of transistors and a drain of a second transistor in the differential pair of transistors;
a first current mirror configured to produce a first current responsive to a drain voltage of the first transistor;
a first load transistor configured to conduct the first current to produce a first voltage, the first load transistor being selectively diode connected through a first switch;
a second current mirror configured to produce a second current responsive to a drain voltage of the second transistor; and
a second load transistor configured to conduct the second output current to produce a second voltage, the second load transistor being selectively diode connected through a second switch.