Invention Grant
- Patent Title: Calibration detector with two offset compensation loops
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Application No.: US17892001Application Date: 2022-08-19
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Publication No.: US12113542B2Publication Date: 2024-10-08
- Inventor: Jan Mulder , Frank Van der Goes , Mohammadreza Mehrpoo , Sijia Wang , Jeffrey Allan Riley
- Applicant: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
- Applicant Address: SG Singapore
- Assignee: Avago Technologies International Sales Pte. Limited
- Current Assignee: Avago Technologies International Sales Pte. Limited
- Current Assignee Address: SG Singapore
- Agency: Foley & Lardner LLP
- Main IPC: H03M1/10
- IPC: H03M1/10

Abstract:
Described herein are related to a calibration circuit for a digital to analog converter (DAC) including a plurality of DAC cells. The calibration circuit including a chopper circuit configured to receive a first signal from a first DAC cell of the plurality of DAC cells and receive a second signal from a second DAC cell of the plurality of DAC cells. The calibration circuit including a comparator circuit configured to receive the first signal and the second signal from the chopper circuit, provide a third signal indicating at least one of the first signal or the second signal. The calibration circuit also including a second circuit configured to offset a first voltage associated with the comparator circuit and configured to offset a second voltage associated with the chopper circuit.
Public/Granted literature
- US20240063808A1 CALIBRATION DETECTOR WITH TWO OFFSET COMPENSATION LOOPS Public/Granted day:2024-02-22
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