●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.
● 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
