Invention Grant
- Patent Title: Single ended charge to voltage front-end circuit
- Patent Title (中): 单端充电至电压前端电路
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Application No.: US14580388Application Date: 2014-12-23
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Publication No.: US09461628B2Publication Date: 2016-10-04
- Inventor: Rahul Sharma , Nagesh Surendranath , Sandeep Kesrimal Oswal
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Gregory J. Albin; Frank D. Cimino
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H03K3/012 ; H02M1/08 ; H02M1/12 ; H03K17/687 ; H03H11/12 ; H03H19/00 ; G06G7/184 ; G05F1/56 ; G06G7/186

Abstract:
Charge to voltage conversion integrator circuitry for data acquisition front-end and other applications to provide a single-ended up a voltage using an input bias capacitance and a switching circuit to selectively place an input transistor in a negative feedback configuration in a first mode to charge the input bias capacitance to a calibration voltage for compensating integrator amplifier bias circuitry, with the switching circuit connecting an input node and the input bias capacitance in a second mode to integrate the input current signal across a feedback capacitance to provide a single-ended output voltage with the input bias capacitance maintaining a zero voltage at the input node.
Public/Granted literature
- US20160182017A1 SINGLE ENDED CHARGE TO VOLTAGE FRONT-END CIRCUIT Public/Granted day:2016-06-23
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