Texas Instruments TDC1011
The TDC1011 is a fully integrated analog front-end (AFE) for ultrasonic sensing measurements of liquid level, fluid identification/concentration, 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. 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.APPLICATIONS
1FEATURES
●1 Measurement Range: Up to 8 ms● Operating Current: 1.8 µA (2 SPS)
● Transmitter Channel TX – Supports Single Transducer
APPLICATIONS
– Programmable Excitation: 31.25 kHz to 4 MHz, Up to 31 Pulses● Receiver Channel RX – 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 – 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 2
APPLICATIONS
● Measurements Through Tanks of Varying Materials: – Fluid Level – Fluid Identification / Concentration 3DESCRIPTION
TI's Ultrasonic AFE offers programmability and flexibility to accommodate a wide-range of applications and end equipment. 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.