US 11,811,408 B2
Comparing device and method of controlling comparing device
Mei-Chen Chuang, Pingtung County (TW)
Assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu (TW)
Filed by TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu (TW)
Filed on Jul. 26, 2022, as Appl. No. 17/814,861.
Application 17/814,861 is a division of application No. 17/103,750, filed on Nov. 24, 2020, granted, now 11,411,554.
Application 17/103,750 is a continuation of application No. 16/548,851, filed on Aug. 23, 2019, granted, now 10,862,464, issued on Dec. 8, 2020.
Prior Publication US 2022/0360255 A1, Nov. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H03K 3/356 (2006.01); H03K 5/24 (2006.01); G05F 1/44 (2006.01); G05F 3/26 (2006.01)
CPC H03K 3/356121 (2013.01) [G05F 1/44 (2013.01); G05F 3/262 (2013.01); H03K 5/249 (2013.01); H03K 5/2481 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of controlling a comparing device, comprising:
selectively generating a first current by a first current generating circuit according to a first control signal;
generating a second current by a second current generating circuit; and
comparing a first input signal and a second input signal at a common node to generate an output signal according to the first current, the second current, and a second control signal,
wherein the second control signal and the first control signal are in-phase with each other.