Product details

Type Analog front-end (AFE) Features Direct drive Gain (min) (dB) 20 Gain (max) (dB) 41 Number of input channels 2 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 125 Interface type SPI Rating Catalog
Type Analog front-end (AFE) Features Direct drive Gain (min) (dB) 20 Gain (max) (dB) 41 Number of input channels 2 Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 125 Interface type SPI Rating Catalog
TSSOP (PW) 28 62.08 mm² 9.7 x 6.4
  • 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
  • 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, and proximity/distance applications common in automotive, industrial, 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 (31.25 kHz to 4 MHz) 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 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, and proximity/distance applications common in automotive, industrial, 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 (31.25 kHz to 4 MHz) 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 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

Recommended alternative products

  • For evaluation of TUSS4470, a device with SIMILAR FUNCTIONALITY but not functionally equivalent to TDC1000 for direct-drive ultrasonic systems up to 1 MHz, please use the BOOST-TUSS4470.
  • For evaluation of TUSS4440, a device with SIMILAR FUNCTIONALITY but not (...)
User guide: PDF
Not available on TI.com
GUI for evaluation module (EVM)

SNAC064 TDC1000-TDC7200EVM GUI v1.2.7.1

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Ultrasonic sensor AFEs
TDC1000 Ultrasonic sensing analog front end for level and concentration sensing TDC1000-Q1 Automotive Ultrasonic Sensing Analog Front End for Level and Concentration Sensing
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
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. (...)
Test report: PDF
Schematic: PDF
Package Pins Download
TSSOP (PW) 28 View options

Ordering & quality

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