公开(公告)号：US11258452B2

公开(公告)日：2022-02-22

申请号：US17039313

申请日：2020-09-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yujendra Mitikiri ,  Minkle Eldho Paul ,  Anukruti Chakraborty

IPC: H03M1/06 ,  H03M1/08 ,  H03M1/46 ,  H03M1/00 ,  H03M1/12

Abstract: An analog-to-digital converter (ADC) includes a comparator, a voltage reference circuit, a first capacitive digital-to-analog converter (CDAC), and a second CDAC. The first CDAC includes a plurality of capacitors. Each of the capacitors of the first CDAC includes a top plate coupled to a first input of the comparator, and a bottom plate switchably coupled to an output of the voltage reference circuit. The second CDAC includes a plurality of capacitors. Each of the capacitors of the second CDAC includes a top plate coupled to a second input of the comparator, and a bottom plate switchably coupled to a ground reference.

公开(公告)号：US10483994B2

公开(公告)日：2019-11-19

申请号：US15902092

申请日：2018-02-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yujendra Mitikiri ,  Minkle Eldho Paul ,  Anukruti Chakraborty

IPC: H03M1/06 ,  H03M1/08 ,  H03M1/00 ,  H03M1/12

Abstract: An analog-to-digital converter (ADC) includes a comparator, a voltage reference circuit, a first capacitive digital-to-analog converter (CDAC), and a second CDAC. The first CDAC includes a plurality of capacitors. Each of the capacitors of the first CDAC includes a top plate coupled to a first input of the comparator, and a bottom plate switchably coupled to an output of the voltage reference circuit. The second CDAC includes a plurality of capacitors. Each of the capacitors of the second CDAC includes a top plate coupled to a second input of the comparator, and a bottom plate switchably coupled to a ground reference.

公开(公告)号：US10833690B2

公开(公告)日：2020-11-10

申请号：US16654062

申请日：2019-10-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yujendra Mitikiri ,  Minkle Eldho Paul ,  Anukruti Chakraborty

IPC: H03M1/06 ,  H03M1/08 ,  H03M1/46 ,  H03M1/00 ,  H03M1/12

Abstract: An analog-to-digital converter (ADC) includes a comparator, a voltage reference circuit, a first capacitive digital-to-analog converter (CDAC), and a second CDAC. The first CDAC includes a plurality of capacitors. Each of the capacitors of the first CDAC includes a top plate coupled to a first input of the comparator, and a bottom plate switchably coupled to an output of the voltage reference circuit. The second CDAC includes a plurality of capacitors. Each of the capacitors of the second CDAC includes a top plate coupled to a second input of the comparator, and a bottom plate switchably coupled to a ground reference.