TDC1011PWR

The TDC1011PWR is a fully integrated Analog Front-End for ultrasonic sensing measurements of liquid level, fluid identification/concentration and proximity/distance applications. 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 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. 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. The low noise amplifiers and comparators provide extremely low jitter, enabling picosecond resolution and accuracy.

• Up to 8ms Measurement range
• 1.8µA (2 SPS) Operating current
• Transmitter channel TX supports single transducer applications
• Programmable Excitation 31.25kHz to 4MHz, Up to 31 Pulses
• 50psRMS Receiver channel RX STOP cycle-to-cycle jitter
• Receiver channel RX - Low-noise and programmable gain amplifiers
• Receiver channel RX - Access to signal chain for external filter design
• Receiver channel RX - Programmable threshold comparator for echo qualification
• Receiver channel RX - Programmable low power mode for long TOF measurements
• Temperature measurement - Interface to two PT1000/500 RTDs
• Temperature measurement - RTD-to-RTD Matching accuracy 0.02°CRMS