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Texas Instruments TDC1000 Integrated Analog Front-End (AFE)

Texas Instruments TDC1000 Integrated Analog Front-End (AFE) is designed for ultrasonic sensing measurements of level, fluid identification/concentration, flow, and proximity/distance applications common in automotive, industrial, medical, and consumer markets. When paired with an MSP430/C2000 MCU, power, wireless, and source code, TI 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 TDC1000 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.

Features

  • Automotive AEC-Q100 (TDC1000-Q1)
  • Measurement range up to 8ms
  • 1.8µA (2 SPS) Operating current
  • Transmitter channels TX1/TX2:
    • Supports single or dual-transducer application
    • 31.25kHz to 4MHz, up to 31 pulses programmable excitation
  • Receiver channels RX1/RX2:
    • 50psRMS STOP cycle-to-cycle jitter
    • Low-noise and programmable gain amplifiers
  • Access to signal chain for external filter design
  • Programmable threshold comparator for echoqualification
  • Automatic channel swapping for differential Time-of-Flight (TOF) measurement
  • Programmable low power mode for long TOF measurements
  • Temperature measurement
  • Interface to two PT1000/500 RTDs
  • RTD-to-RTD matching accuracy 0.02°CRMS
  • -40°C to 125°C Operating temperature range

Applications

  • Measurements through tanks of varying materials
  • Fluid level
  • Fluid identification/concentration
  • Water, gas, heat flow metering
  • Distance/proximity sensing

Functional Block Diagram

Texas Instruments TDC1000 Integrated Analog Front-End (AFE)

Additional Resources

Evaluation Module

Texas Instruments TDC1000-C2000EVM Evaluation Module (EVM)

Evaluate the operation and performance of the TDC1000 ultrasonic analog-front-end with C2000.

Learn Moreabout Texas Instruments TDC1000-C2000EVM Evaluation Module (EVM) View Productsrelated to Texas Instruments TDC1000-C2000EVM Evaluation Module (EVM)
Published: 2015-02-20 | Updated: 2022-03-11