TDC7201ZAXR

Sensor And Detector Interfaces Overview

The TDC7201ZAXR is a Time-to-Digital Converter (TDC) integrated circuit manufactured by Texas Instruments, designed for high-precision time-of-flight measurements in applications such as LiDAR and advanced driver assistance systems. It features two independent TDC cores capable of measuring elapsed time between start and stop pulses with a resolution of 55 picoseconds and a standard deviation of 35 picoseconds. The device operates on a supply voltage ranging from 2 V to 3.6 V with an active current consumption of 2.7 mA. It supports measurement ranges of 12 ns to 2000 ns in Mode 1 and 250 ns to 8 ms in Mode 2, or combined operation from 0.25 ns to 8 ms. The component is housed in a 25-NFBGA package with dimensions of 4x4 mm.

Sensor And Detector Interfaces Feature Summary

• Dual TDC architecture allows simultaneous or individual measurement of up to six stop pulses relative to a start pulse.
• Internal self-calibrated time base compensates for drift over time and temperature to maintain picosecond-level accuracy.
• Autonomous multi-cycle averaging mode optimizes system power consumption during low-power operations.
• SPI interface enables register access and configuration control for flexible integration into sensor systems.

Sensor And Detector Interfaces Applications

• LiDAR systems for distance measurement
• Advanced Driver Assistance Systems (ADAS)
• Ultrasonic range finders
• Collision detection systems
• Flow meters

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix ZAXR against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with the required operating temperature range of -40°C to +85°C for your application environment. Cross-reference the 25-NFBGA footprint with your PCB design guidelines to ensure proper assembly and soldering requirements are met.

Sensor And Detector Interfaces Selection Notes

Select this component when high-resolution time-of-flight measurement is required without the complexity of FPGA-based solutions. The dual-core structure provides flexibility for measuring multiple targets or redundant signals. Consider the 2 V to 3.6 V supply requirement and SPI interface compatibility with your microcontroller. The autonomous averaging feature is beneficial for battery-operated devices requiring extended operational life.

Sensor And Detector Interfaces Part Context

The TDC7201ZAXR belongs to the TDC7201 family of time-to-digital converters from Texas Instruments. It serves as a specialized interface IC for sensor systems that rely on time-of-flight principles. The device simplifies the design of ranging equipment by integrating essential timing functions, eliminating the need for external processors for basic time interval calculations.

Sensor And Detector Interfaces Replacement Considerations

The TDC7201ZAXT is listed as a previous version of this component. Verify if the ZAXT variant is available as a direct substitute, noting any differences in packaging or production status. Consult the manufacturer's product change notification for any functional or physical differences between the ZAXR and other suffixes in the TDC7201 series.