TDC1011PW

Sensor And Detector Interfaces Overview

The TDC1011PW is a single-channel ultrasonic sensing analog front-end (AFE) manufactured by Texas Instruments. It integrates a transmitter channel supporting up to 31 programmable excitation pulses and a receiver channel with low-noise amplification and a programmable threshold comparator. The device operates within a supply current of 1.8 μA at 2 SPS and supports sensor frequencies from 31.25 kHz to 4 MHz. Key electrical parameters include a measurement range of up to 8 ms, RX STOP period-to-period jitter of 50 ps RMS, and an operating temperature range of -40°C to +125°C. It is housed in a 28-pin TSSOP package.

Sensor And Detector Interfaces Feature Summary

• Integrates programmable excitation for single-sensor applications with configurable pulse counts and frequencies.
• Provides high-precision time-of-flight measurement through low-jitter reception paths and echo validation comparators.
• Supports flexible signal chain access for external filter design and multiple gain settings.

Sensor And Detector Interfaces Applications

• Liquid level sensing
• Fluid type or concentration detection
• Proximity and distance measurement

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix 'PW' corresponds to the 28-pin TSSOP package variant when sourcing. Confirm that the component meets the required industrial temperature specifications if deployed in extreme environments. Ensure compatibility with the intended microcontroller interface for complete system integration.

Sensor And Detector Interfaces Selection Notes

Select this AFE for applications requiring low power consumption and high accuracy in ultrasonic sensing. Consider the integrated transmitter and receiver capabilities versus discrete solutions for board space savings. Evaluate the need for external filters based on the accessible signal chain features provided by the device architecture.

Sensor And Detector Interfaces Part Context

This component belongs to Texas Instruments' family of ultrasonic sensing analog front-ends, designed to simplify the implementation of ultrasonic measurement systems. It complements microcontrollers such as MSP430 and C2000 series to provide complete sensing solutions for automotive, industrial, medical, and consumer markets.

Sensor And Detector Interfaces Replacement Considerations

The TDC1001 is a related full-integrated analog front-end from the same manufacturer offering similar functionality for ultrasonic sensing applications. Verify pinout and feature compatibility before substituting.