Invention Grant
- Patent Title: Analog front-end circuit including instrumentation preamplifier and A/D converter
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Application No.: US15492947Application Date: 2017-04-20
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Publication No.: US09935596B2Publication Date: 2018-04-03
- Inventor: Yoichi Shimeno
- Applicant: NEW JAPAN RADIO CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: NEW JAPAN RADIO CO., LTD.
- Current Assignee: NEW JAPAN RADIO CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Procopio, Cory, Hargreaves & Savitch LLP
- Priority: JP2016-085016 20160421
- Main IPC: H03M1/06
- IPC: H03M1/06 ; H03F3/387

Abstract:
One embodiment provides an analog front-end circuit. When a chopping signal has a first logical value, a non-inverting instrumentation preamplifier subtracts a second input voltage from a first input voltage and generates a first output voltage by amplifying a subtraction voltage while outputting the second input voltage as a second output voltage. When the chopping signal has a second logical value, the non-inverting instrumentation preamplifier subtracts the first input voltage from the second input voltage and generates the first output voltage by amplifying and then inverting the polarity of a subtraction voltage while outputting the second input voltage as the second output voltage.
Public/Granted literature
- US20170310289A1 ANALOG FRONT-END CIRCUIT Public/Granted day:2017-10-26
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