Invention Grant
- Patent Title: Apparatus and method for measuring current source mismatches in current-steering DAC by re-using R2R network
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Application No.: US16367712Application Date: 2019-03-28
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Publication No.: US10797720B2Publication Date: 2020-10-06
- Inventor: Eunyung Sung , Nitz Saputra , Behnam Sedighi , Ashok Swaminathan , Honghao Ji , Shahin Mehdizad Taleie , Dongwon Seo
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Loza & Loza, LLP
- Main IPC: H03M1/74
- IPC: H03M1/74 ; H03M1/78 ; H03M1/68
Abstract:
A current digital-to-analog converter includes a binary current-generating section configured to generate a binary-weighted current based on a first set of control signals; a unary current-generating section configured to generate a unary-weighted current based on a second set of control signals; and a current combining circuit configured to add or subtract a reference current and a current generated by a current source of the unary current-generating section using the binary-weighted current.
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