Texas Instruments ADS1263EVM-PDK

Overview

ADS1263EVM-PDK from Texas Instruments is an evaluation module kit designed to accelerate development and validation of precision sensor measurement systems using the ADS1263 32-bit delta-sigma ADC. It includes the ADS1263EVM board, PHI controller board, and USB cable - enabling USB-powered operation, real-time data capture at up to 38 kSPS, and full GUI-based control of analog input configurations, IDAC biasing, and dual-ADC monitoring for strain gauges, RTDs, thermocouples, and thermistors.

For engineers reviewing the ADS1263EVM-PDK datasheet, ADS1263EVM-PDK pinout, ADS1263EVM-PDK application, or ADS1263EVM-PDK equivalent, this page delivers verified hardware architecture, supported sensor interface topologies (2-/3-/4-wire RTD, thermocouple CJC, ratiometric thermistor), USB 2.0 host connectivity, and integrated power regulation - all critical for rapid prototyping of high-accuracy industrial and test equipment.

Technical Context

The ADS1263EVM-PDK implements a two-board architecture: the ADS1263EVM hosts the ADS1263 IC with ultra-low-noise TPS7A4700 LDO (5-V AVDD), analog input filtering (50 kHz differential / 497 kHz common-mode), terminal blocks J3–J6 for sensor connection, and configurable IDAC/REFOUT/VBIAS routing. The PHI board provides USB 2.0 interface, digital I/O buffering, and 3.3-V DVDD supply.

It supports simultaneous configuration of the main 32-bit ADC and auxiliary 24-bit ADC via GUI, with hardware-level support for thermocouple cold-junction compensation using on-board PCB copper pours and optional 0603 NTC thermistor (RT1), plus ratiometric RTD measurement using dual IDACs and precision reference resistor R1.

Key Specifications

Availability

ADS1263EVM-PDK is available at Aetrix Electronics and suitable for precision sensor evaluation, industrial instrumentation prototyping, and metrology-grade ADC validation requiring stable component supply, traceable sourcing, and long-term design-in support.

Supply support for ADS1263EVM-PDK includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-performance signal chain solutions for industrial, automotive, and communications markets.

The ADS1263EVM-PDK belongs to TI's Precision Data Converter Evaluation Platform family, engineered to reduce time-to-prototype for high-resolution sensor measurement applications demanding sub-10-ppm linearity and <1-μV RMS noise.

FAQ

What is included in the ADS1263EVM-PDK kit?

The ADS1263EVM-PDK kit contains the ADS1263EVM evaluation board, the precision host interface (PHI) controller board, and a micro-USB-to-USB cable. No external power supply is required - the system draws all operating power via USB. The ADS1263 IC is pre-mounted on the EVM board, and the PHI board handles USB communication, digital signal buffering, and DVDD generation.

Does the ADS1263EVM-PDK support both the ADS1263 and ADS1262?

Yes - the ADS1263EVM-PDK hardware supports both the ADS1263 and ADS1262. The ADS1262 is functionally identical except it lacks the auxiliary 24-bit ADC. To use the ADS1262, users must manually remove the ADS1263 IC and replace it with the ADS1262; no other hardware changes are needed. The GUI and firmware remain compatible.

How does the ADS1263EVM-PDK enable thermocouple cold-junction compensation (CJC)?

The ADS1263EVM-PDK enables CJC through dedicated PCB layout: copper pours on top and bottom layers create an isothermal bridge between J4 (thermocouple inputs AIN8/AIN9) and the optional 0603 NTC thermistor (RT1). When populated, RT1 measures the local temperature at the cold junction. The ADS1263EVM-PDK's GUI allows separate acquisition of thermocouple and RT1 voltage data for software-based CJC calculation.

Can the ADS1263EVM-PDK evaluate 4-wire RTD measurements without external jumpers?

Yes - the ADS1263EVM-PDK supports 4-wire RTD measurement natively without external jumpers. The user connects the two sense leads to a differential pair (e.g., AIN6/AIN7 via J3), and the two current leads to AIN4 and AINCOM. The ADS1263's dual IDACs drive the RTD and reference resistor R1 ratiometrically, eliminating lead resistance errors. No jumper wires are required for signal path integrity in this configuration.

What analog input filtering is provided on the ADS1263EVM-PDK?

The ADS1263EVM-PDK provides per-channel analog filtering: 150-pF capacitors on each analog input (AIN0–AIN9, AINCOM) yield a common-mode cutoff of ~497 kHz; 1.6-nF capacitors on differential pairs (e.g., J3, J4) set a differential cutoff of 50 kHz. These filters suppress high-frequency noise while preserving signal integrity for precision DC and low-frequency AC measurements typical in weigh scales and temperature sensing.