Texas Instruments ADS8344EVM

Overview

ADS8344EVM from Texas Instruments is an evaluation module designed for the ADS8344 16-bit, 8-channel, 100-kHz SAR analog-to-digital converter. It provides full access to analog inputs (CH0–CH7), digital control signals (CS*, SCLK, SDI, SDO, BUSY), and configurable reference options (onboard REF02BU or external). The board supports dual ±12 V op-amp supplies and a separate 2.7–5 V ADC supply, enabling lab-based validation of precision data acquisition systems.

For engineers reviewing the ADS8344EVM datasheet, ADS8344EVM pinout, ADS8344EVM application, or ADS8344EVM equivalent, this module serves as a hardware platform to verify timing behavior, signal integrity, reference stability, and serial interface interoperability with host controllers such as DSPs or microcontrollers before final PCB integration.

Technical Context

The ADS8344EVM implements a complete signal chain around the ADS8344EB ADC, including OPA627AU and OPA132AU op-amps for analog buffering and conditioning, and a REF02BU 5-V precision voltage reference. It supports both single-ended and differential input configurations via jumper-selectable paths and onboard amplifiers.

Digital interfacing uses a synchronous serial protocol with active-low chip select (CS*), bidirectional data lines (SDI/SDO), and BUSY status indication. Power is segregated into analog (±12 V) and digital (2.7–5 V) domains, with dedicated ferrite beads (FB1–FB3) and decoupling capacitors to minimize noise coupling between sections.

Key Specifications

Availability

ADS8344EVM is available at Aetrix Electronics and suitable for precision data acquisition validation, sensor signal chain prototyping, and embedded ADC interface development requiring stable component supply and documented reference design support.

Supply support for ADS8344EVM 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, specializing in analog, embedded processing, and power management technologies since 1930.

The ADS8344EVM belongs to TI's Data Acquisition Evaluation Modules product line, engineered to accelerate development of high-resolution, multi-channel measurement systems using TI's precision ADC portfolio.

FAQ

What is the primary function of the ADS8344EVM?

The ADS8344EVM is an evaluation module built to demonstrate and validate the operation of the ADS8344EB 16-bit, 8-channel SAR ADC. It provides physical access to all analog inputs, digital control pins, reference options, and power domains-enabling engineers to characterize conversion accuracy, timing margins, noise performance, and interface compatibility prior to custom board design. The ADS8344EVM itself is not a production component but a development tool.

Does the ADS8344EVM include an onboard voltage reference?

Yes, the ADS8344EVM integrates a REF02BU 5-V precision voltage reference (U3), selectable via jumper W5. When W5 is installed, the reference is sourced from U3; when removed, the board accepts an external reference via P1.20. This dual-mode configuration allows flexibility in testing reference sensitivity, drift, and noise rejection characteristics of the ADS8344EB ADC core.

Can the ADS8344EVM be used with microcontrollers or only TI DSPs?

The ADS8344EVM supports standard synchronous serial communication (CS*, SCLK, SDI, SDO, BUSY), making it compatible with any host controller capable of generating the required timing and protocol-such as ARM Cortex-M microcontrollers, FPGAs, or TI C5000/C6000 DSPs. Its P2 header exposes all necessary signals, and no proprietary interface logic is required to operate the ADS8344EVM.

What are the power supply requirements for the ADS8344EVM?

The ADS8344EVM requires two independent power sources: a ±12 V DC supply for the analog section (op-amps and REF02BU), connected via J3 terminals, and a 2.7–5 V DC supply for the ADC and digital logic, applied to J3.1 (+Vcc) and DGND. Current draw is limited to 500 mA per supply, and proper sequencing (analog supplies first) is recommended to avoid latch-up or undefined states in the ADS8344EVM circuitry.

Is the ADS8344EVM FCC-certified for commercial deployment?

No-the ADS8344EVM is explicitly designated for engineering development and laboratory evaluation only. As stated in its User's Guide, it is not regulatory compliant (FCC, CE, UL), lacks EMI shielding, and has open construction. It must not be deployed in end products or commercial environments. All safety-critical design validation-including thermal management, ESD protection, and EMC compliance-must be performed on the final system using production-grade components, not the ADS8344EVM.