Texas Instruments ADS1606EVM

Overview

ADS1606EVM from Texas Instruments is an evaluation module for the ADS1606 16-bit, 5MSPS delta-sigma analog-to-digital converter. It enables rapid prototyping of high-precision data acquisition systems requiring ≥2.45MHz bandwidth, ±0.0025dB passband ripple, and ≤−99dB THD in scientific instrumentation and medical imaging applications.

For engineers reviewing the ADS1606EVM datasheet, ADS1606EVM pinout, ADS1606EVM application, or ADS1606EVM equivalent, this module provides verified signal integrity validation, FIFO-level configuration support, direct TMS320C6000 DSP interface testing, and adjustable power dissipation (315–570mW) under real-world clock and reference conditions.

Technical Context

The ADS1606EVM implements a fixed 8× oversampling delta-sigma modulator architecture with a 40MHz input clock, delivering 5MSPS output data rate and 2.45MHz −3dB bandwidth. Its on-board digital filter ensures linear phase response and <±0.0025dB passband ripple up to 2.2MHz.

It supports both internal and external voltage reference selection (REFEN control), 2X mode operation (10MSPS at reduced OSR), and configurable FIFO level via FIFO_LEV[2:0] pins - all validated against the ADS1606's TQFP-64 package timing and electrical specifications.

Key Specifications

Availability

ADS1606EVM is available at Aetrix Electronics and suitable for automated test equipment, medical imaging subsystems, and scientific instrumentation requiring stable component supply, full evaluation board traceability, and TI-validated reference design compliance.

Supply support for ADS1606EVM 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 and embedded processing technologies, with over 50 years of innovation in precision data conversion and signal chain solutions.

The ADS1606EVM belongs to TI's high-speed precision ADC evaluation platform family, designed specifically to accelerate development of metrology-grade data acquisition systems for demanding test, measurement, and diagnostic applications.

FAQ

What is the primary function of the ADS1606EVM?

The ADS1606EVM is an evaluation module for the ADS1606 16-bit, 5MSPS delta-sigma ADC. It provides a complete, tested hardware platform-including reference clock, voltage reference, FPGA-based interface logic, and TMS320C6000-compatible parallel bus-to validate performance metrics like SNR (88dB), THD (−99dB), and SFDR (101dB) under real operating conditions. The ADS1606EVM enables immediate characterization of the ADS1606 without custom PCB design.

Does the ADS1606EVM support the ADS1606's FIFO functionality?

Yes, the ADS1606EVM fully supports the ADS1606's adjustable FIFO buffer via dedicated headers for FIFO_LEV[2:0] pins. Users can configure FIFO depth to manage data flow between the ADS1606 and host processor, reducing interrupt overhead and enabling burst-mode acquisition. This capability is validated in the ADS1606EVM User's Guide (SLAU170) and aligns with ADS1606 timing requirements for FIFO-enabled DRDY and DOUT behavior.

Can the ADS1606EVM operate in 2X mode at 10MSPS?

Yes, the ADS1606EVM supports 2X mode operation at 10MSPS by asserting the 2XMODE pin on the ADS1606. This reduces the oversampling ratio from 8 to 4 while maintaining full 16-bit resolution and validated dynamic performance (e.g., 86dB SNR at 500kHz). The board's clock circuitry delivers stable 40MHz CLK, and its layout complies with TI's 2X mode timing margins per SBAS274H Figure 4.

What reference options does the ADS1606EVM provide for the ADS1606?

The ADS1606EVM supports both internal and external reference configurations for the ADS1606. It includes a precision 3.0V reference IC (REF5030) for external VREF generation and routes REFEN to a jumper-selectable position, allowing users to enable or disable the ADS1606's internal reference per the device's specification (VREF drift: 50ppm/°C when internal). All reference paths are impedance-matched and bypassed per TI layout guidelines.

Is the ADS1606EVM compatible with TMS320C6000 DSPs as stated in the datasheet?

Yes, the ADS1606EVM implements the exact parallel interface described in the ADS1606 datasheet for direct connection to TMS320C6000 DSPs. It features matched trace lengths, controlled-impedance routing, and logic-level translation (IOVDD = 3.3V) to meet DVDD = 3V and IOVDD = 2.7–5.25V requirements. The board's RD, CS, DRDY, and DOUT[15:0] signals comply with timing parameters in SBAS274H Figures 1–5, including t6 (15ns setup) and t8 (15ns hold).