US 11,953,523 B2
AFE circuit and related gain amplifier
Tzu-Wei Lin, Hsinchu County (TW); Hung-Kai Chen, Taipei (TW); and Feng-Lin Chan, Hsinchu County (TW)
Assigned to NOVATEK Microelectronics Corp., Hsin-Chu (TW)
Filed by NOVATEK Microelectronics Corp., Hsin-Chu (TW)
Filed on Nov. 30, 2021, as Appl. No. 17/539,170.
Prior Publication US 2023/0168282 A1, Jun. 1, 2023
Int. Cl. G01R 1/30 (2006.01); H03G 3/30 (2006.01)
CPC G01R 1/30 (2013.01) [H03G 3/30 (2013.01); H03G 2201/103 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An analog front-end (AFE) circuit, configured to be coupled to a sensor having a plurality of sensing units, the AFE circuit comprising:
a plurality of sensing circuits; and
a plurality of multiplexers, each coupled between one of the plurality of sensing units and at least two of the plurality of sensing circuits;
wherein each of the plurality of multiplexers comprises:
a first switch, coupled between the one of the plurality of sensing units and a first sensing circuit among the at least two of the plurality of sensing circuits; and
a second switch, coupled between the one of the plurality of sensing units and a second sensing circuit among the at least two of the plurality of sensing circuits.