Product details

Type Analog front-end (AFE) Features Direct drive Frequency (kHz) 31.25-4000 kHz Gain (Min) (dB) 20 Gain (Max) (dB) 41 Number of input channels 2 Supply voltage (Max) 5.5 Operating temperature range (C) -40 to 125 Supply voltage (Min) 2.7 Interface type SPI Rating Catalog
Type Analog front-end (AFE) Features Direct drive Frequency (kHz) 31.25-4000 kHz Gain (Min) (dB) 20 Gain (Max) (dB) 41 Number of input channels 2 Supply voltage (Max) 5.5 Operating temperature range (C) -40 to 125 Supply voltage (Min) 2.7 Interface type SPI Rating Catalog
TSSOP (PW) 28 62 mm² 9.7 x 6.4
  • Automotive AEC-Q100 (TDC1000-Q1)
  • Measurement Range: Up to 8 ms
  • Operating Current: 1.8 µA (2 SPS)
  • Transmitter Channels TX1/TX2:
    • Supports Single or Dual-Transducer
      Application
    • Programmable Excitation: 31.25 kHz to 4 MHz,
      Up to 31 Pulses
  • Receiver Channels RX1/RX2:
    • STOP Cycle-to-Cycle Jitter: 50 psRMS
    • Low-Noise and Programmable Gain Amplifiers
    • Access to Signal Chain for External Filter
      Design
    • Programmable Threshold Comparator for Echo
      Qualification
    • 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
  • Operating Temperature Range: –40°C to 125°C
  • Automotive AEC-Q100 (TDC1000-Q1)
  • Measurement Range: Up to 8 ms
  • Operating Current: 1.8 µA (2 SPS)
  • Transmitter Channels TX1/TX2:
    • Supports Single or Dual-Transducer
      Application
    • Programmable Excitation: 31.25 kHz to 4 MHz,
      Up to 31 Pulses
  • Receiver Channels RX1/RX2:
    • STOP Cycle-to-Cycle Jitter: 50 psRMS
    • Low-Noise and Programmable Gain Amplifiers
    • Access to Signal Chain for External Filter
      Design
    • Programmable Threshold Comparator for Echo
      Qualification
    • 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
  • Operating Temperature Range: –40°C to 125°C

The TDC1000 is a fully integrated analog front-end (AFE) 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.

Selecting different modes of operation, the TDC1000 can be optimized for low power consumption, making it ideal for battery powered flow meters, level instrumentation, and distance/proximity measurements. The low noise amplifiers and comparators provide extremely low jitter, enabling picosecond resolution and accuracy for zero and low flow measurements.

The TDC1000 is a fully integrated analog front-end (AFE) 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.

Selecting different modes of operation, the TDC1000 can be optimized for low power consumption, making it ideal for battery powered flow meters, level instrumentation, and distance/proximity measurements. The low noise amplifiers and comparators provide extremely low jitter, enabling picosecond resolution and accuracy for zero and low flow measurements.

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Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TDC1000-C2000EVM — Ultrasonic Sensing for Level and Concentration Measurement Evaluation Module

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Simulation model

TDC1000 IBIS Model

SNAM173.ZIP (130 KB) - IBIS Model
Simulation model

TDC1000 TINA-TI Reference Design

SNAM193.TSC (458 KB) - TINA-TI Reference Design
Simulation model

TDC1000 TINA-TI Spice Model

SNAM194.ZIP (13 KB) - TINA-TI Spice Model
Gerber file

PGA460 Transducer and Transformer Listing

SLAC787.ZIP (21 KB)
Reference designs

TIDA-00322 — Automotive Ultrasonic Fluid Level/Quality Measurement Reference Design

TI reference design TIDA-00322 is an automotive liquid level and fluid identification measurement system. It is based on the dual-channel TDC1000-Q1 ultrasonic AFE and the real-time microcontroller C2000. This reference design can also be used with the TDC1000 for industrial/consumer applications. (...)
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TSSOP (PW) 28 View options

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