Invention Grant
- Patent Title: Low noise reference circuit
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Application No.: US17400980Application Date: 2021-08-12
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Publication No.: US11604487B2Publication Date: 2023-03-14
- Inventor: Stefan Marinca , Thomas O'Dwyer
- Applicant: Analog Design Services Limited
- Applicant Address: IE Clonlara
- Assignee: Analog Design Services Limited
- Current Assignee: Analog Design Services Limited
- Current Assignee Address: IE Clonlara
- Agency: Snell & Wilmer L.L.P.
- Agent Kent A. Lembke
- Priority: GB2014195 20200909
- Main IPC: G05F3/30
- IPC: G05F3/30 ; G05F3/26

Abstract:
Reference circuits are described. In particular reference circuits that use a plurality of cascaded proportional to absolute temperature, PTAT, cells are described. In the circuits disclosed, currents of the low current density arm of first PTAT cell are mirrored into the high current density arms of a second PTAT cell such that any deviation of current in the low current density arm of the first cell will be replicated as the current in the high current density arm of the second cell. In this way low noise circuits can be provided.
Public/Granted literature
- US20220075405A1 LOW NOISE REFERENCE CIRCUIT Public/Granted day:2022-03-10
Information query
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