TDC1011PWR

TEXAS INSTRUMENTS  TDC1011PWR  芯片, 模拟前端, LVL传感, TSSOP28

The is a fully integrated Analog Front-End for ultrasonic sensing measurements of liquid level, fluid identification/concentration and proximity/distance applications. When paired with an MSP430/C2000 MCU, power, wireless and source code, provides the complete ultrasonic sensing solution. TI"s Ultrasonic AFE offers programmability and flexibility to accommodate a wide-range of applications and end equipment. The TDC1011 can be configured for multiple transmit pulses and frequencies, gain and signal thresholds for use with a wide-range of transducer frequencies 31.25kHz to 4MHz and Q-factors. Similarly, the programmability of the receive path allows ultrasonic waves to be detected over a wider range of distances/tank sizes and through various mediums. The low noise amplifiers and comparators provide extremely low jitter, enabling picosecond resolution and accuracy.

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Up to 8ms Measurement range

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1.8µA 2 SPS Operating current

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Transmitter channel TX supports single transducer applications

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Programmable Excitation 31.25kHz to 4MHz, Up to 31 Pulses

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50psRMS Receiver channel RX STOP cycle-to-cycle jitter

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Receiver channel RX - Low-noise and programmable gain amplifiers

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Receiver channel RX - Access to signal chain for external filter design

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Receiver channel RX - Programmable threshold comparator for echo qualification

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Receiver channel RX - Programmable low power mode for long TOF measurements

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Temperature measurement - Interface to two PT1000/500 RTDs

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Temperature measurement - RTD-to-RTD Matching accuracy 0.02°CRMS