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Analog converter TDC-GP22

analog converter
analog converter
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analog, power, digital, temperature, measuring, down
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TDC-GP22 Ultrasonic Flow Converter Next generation time-to-digital converter with integrated analog front-end Features - 2-channel TDC with 22ps resolution - Analog frontend for ultrasonic flow meters - Chopper-stabilized low-offset comparator for zero crossing detection - Precise windowing for hit selection - Temperature measuring unit for PT1000 sensors - QFN32 package Benefits - High precision - Low power - Few additional external component needed Product parameters Analog Frontend: Yes First Wave Detection: Yes Amplitude Measurement: - Number of Hits: 3 Resolution [ps]: 22 Operating Supply Range: 2.5 to 3.6 Interface: SPI CPU: - Firmware: - Memory: - GPIO: - Ambient Temperature Range [°C]: -40 to +125 Package: QFN32 General Description TDC-GP22 is a 2-channel TDC with additional analog elements like extended fire-pulse generator, zero-cross detection and analog switches for simplifying the use in ultrasonic flow meter applications. The addition first-hit detection makes TDC-GP22 suitable for high dynamic applications as ultrasonic water meters. An optimized power managements of the various units brings down the operating current to a few µA at 2Hz measuring rate. This product suits for the following applications: - Ultrasonic water meters - Ultrasonic heat meters - Ultrasonic gas meters - Ultrasonic flow indicators - Laser rangefinders - Magnetostrictive sensors


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