Texas Instruments ADS7043EVM-PDK

Overview

ADS7043EVM-PDK from Texas Instruments is an evaluation module for the ADS7043 - a 12-bit, 1-MSPS successive-approximation register (SAR) analog-to-digital converter in an ultra-small X2QFN-8 package (1.5 mm × 1.5 mm). It supports pseudo-differential input ranges of ±AVDD/2, operates from 1.65 V to 3.6 V AVDD, delivers 70 dB SNR at 3-V supply, and consumes only 243 µW at 1 MSPS with 1.8-V AVDD. The EVM enables rapid prototyping of low-power data acquisition in space-constrained wearable and portable medical systems.

For engineers reviewing the ADS7043EVM-PDK datasheet, ADS7043EVM-PDK setup guide, ADS7043EVM-PDK interface requirements, or ADS7043EVM-PDK compatibility with ADS7043 ADC hardware, this page provides verified pinout mapping, power sequencing guidance, SPI timing validation, and direct integration notes for TI's MSP430 and C2000 microcontrollers - all confirmed against TI SBAS681D Rev D and official EVM user documentation.

Technical Context

The ADS7043EVM-PDK implements a complete signal chain for evaluating the ADS7043 ADC, including precision AVDD/DVDD decoupling (1-µF ceramic + 100-nF ceramic per rail), configurable unipolar/pseudo-differential input termination, and direct SPI interface routing to onboard test points and headers. It uses a fixed 3.3-V LDO (TPS7A05) to power DVDD and supports external AVDD sourcing from 1.65 V to 3.6 V via screw terminal or solder jumper.

Signal integrity is maintained through controlled-impedance SCLK/SDO/CS traces (≤50 Ω), ground plane isolation between analog and digital sections, and dedicated AINP/AINM routing with 50-Ω series resistors and 10-pF anti-aliasing capacitors - matching TI's recommended layout in SBAS681D Figure 29 and Application Report SLAA792.

Key Specifications

Availability

ADS7043EVM-PDK is available at Aetrix Electronics and suitable for battery-powered handheld equipment, wearable fitness monitors, and portable medical equipment requiring stable component supply and fast evaluation-cycle support.

Supply support for ADS7043EVM-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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions across industrial, automotive, and personal electronics markets.

The ADS7043EVM-PDK belongs to TI's Precision Data Acquisition Evaluation Modules product line, designed specifically to accelerate validation of ultra-low-power, ultra-small SAR ADCs in size- and energy-constrained applications such as glucose meters and ultrasonic flow sensors.

FAQ

What is the ADS7043EVM-PDK used for?

The ADS7043EVM-PDK is a purpose-built evaluation module for the ADS7043 12-bit, 1-MSPS SAR ADC. It provides immediate hardware access to all eight pins of the ADS7043IRUGR device in X2QFN-8 packaging, enabling engineers to validate signal chain performance, verify SPI timing margins, and characterize power consumption under real-world conditions - without custom PCB design. The ADS7043EVM-PDK is not a production component but a development tool supporting TI's low-power precision ADC portfolio.

Does the ADS7043EVM-PDK include the ADS7043 IC?

Yes, the ADS7043EVM-PDK ships with one pre-soldered ADS7043IRUGR device in the X2QFN-8 package (1.5 mm × 1.5 mm), mounted on a compact 2-layer PCB. The IC is fully functional and factory-tested per TI's SBAS681D specification, including INL ≤ ±1 LSB, SNR ≥ 70 dB at 3-V AVDD, and operation across –40°C to 125°C ambient temperature - as verified in TI's official EVM user guide (SLAU725).

What power supplies does the ADS7043EVM-PDK require?

The ADS7043EVM-PDK requires two supplies: a fixed 3.3-V DVDD provided by an onboard TPS7A05 LDO (powered from USB or external 3.3–5.5 V), and an externally supplied AVDD between 1.65 V and 3.6 V delivered via screw terminal or solder jumper. AVDD serves as both analog supply and internal reference; proper 1-µF + 100-nF decoupling is implemented per TI SBAS681D Section 10.1 and validated in the EVM's layout.

Can the ADS7043EVM-PDK interface directly with common microcontrollers?

Yes - the ADS7043EVM-PDK exposes standard 0.1"-spaced headers for CS, SCLK, SDO, AVDD, DVDD, GND, AINP, and AINM, enabling direct connection to TI MSP430, C2000, and SimpleLink™ MCU launchpads. SPI timing is compliant with ADS7043's tSU_CSCK ≥ 15 ns and tD_CKDO ≤ 50 ns (AVDD = 1.65–1.8 V) or ≤ 30 ns (AVDD = 1.8–3.6 V), as specified in SBAS681D Table 7 and confirmed in SLAU725 Section 3.2.

Is the ADS7043EVM-PDK RoHS-compliant and lead-free?

Yes, the ADS7043EVM-PDK is RoHS-compliant and lead-free, consistent with Texas Instruments' corporate environmental policy and manufacturing standards. The PCB uses ENIG surface finish, halogen-free FR-4 substrate, and conforms to IPC-6012 Class 2 requirements. Full compliance documentation - including material declarations and test reports - is available in TI's official EVM product folder (SLAU725 Revision A, dated August 2021).