Invention Grant
US08797026B2 Comparator circuit having latching behavior and digital output sensors therefrom
有权
具有锁存特性的比较器电路和数字输出传感器
- Patent Title: Comparator circuit having latching behavior and digital output sensors therefrom
- Patent Title (中): 具有锁存特性的比较器电路和数字输出传感器
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Application No.: US13324500Application Date: 2011-12-13
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Publication No.: US08797026B2Publication Date: 2014-08-05
- Inventor: Wayne Kilian
- Applicant: Wayne Kilian
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Thompson Patent Law Offices
- Agent Craige Thompson
- Main IPC: H03F3/45
- IPC: H03F3/45

Abstract:
A digital output sensor includes a sensing structure that outputs a differential sensing signal and includes at least one sensing element. An integrated circuit includes a substrate including signal conditioning circuitry for conditioning the sensing signal that includes a differential amplifier coupled to receive the sensing signal and provide first and second differential outputs and a comparator having input transistors coupled to receive outputs from the differential amplifier. The comparator also includes first and second current-mirror loads that provide differential drive currents and are coupled to the input transistors in a cross coupled configuration to provide hysteresis. An output driver is coupled to receive the differential drive currents. An output stage includes at least one output transistor which is coupled to the output driver for providing a digital output for the sensor. A voltage regulator is coupled to receive a supply voltage and output at least one regulated supply voltage.
Public/Granted literature
- US20120081181A1 COMPARATOR CIRCUIT HAVING LATCHING BEHAVIOR AND DIGITAL OUTPUT SENSORS THEREFROM Public/Granted day:2012-04-05
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