公开(公告)号：US12191861B2

公开(公告)日：2025-01-07

申请号：US18169138

申请日：2023-02-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Nilanjan Pal ,  Saurav Bandyopadhyay

IPC: H03K5/01 ,  H03K5/24 ,  H03K17/56 ,  H03K5/00

Abstract: A circuit includes a comparator having first and second comparator inputs and a comparator output. A discharge switch is coupled between the first comparator input and a ground terminal. A capacitor has first and second capacitor terminals, in which the first capacitor terminal is coupled to the first comparator input. A delay correction circuit includes a sample-hold circuit coupled to the first capacitor terminal and the second capacitor terminal. An amplifier has a first amplifier input coupled to a hold output of the sample-hold circuit and a second amplifier input coupled to the second comparator input. A variable resistor is coupled between the second capacitor terminal and the ground terminal, and has a control input coupled to the amplifier output.