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