Texas Instruments ADS1601EVM

Overview

ADS1601EVM from Texas Instruments is a dedicated evaluation module for the ADS1601 16-bit delta-sigma analog-to-digital converter, enabling full characterization of SNR (90.71 dB), THD (–91.04 dB), and SFDR (91.66 dB) under internal clock/internal reference conditions. It supports stand-alone testing or integration with TI DSP Starter Kits (DSKs) via the 5-6K Interface Board and provides configurable analog input (single-ended SMA or differential), onboard reference, and serial digital interface.

For engineers reviewing the ADS1601EVM datasheet, ADS1601EVM pinout, ADS1601EVM application, or ADS1601EVM equivalent, this page delivers verified hardware configuration options, jumper-controlled modulator clock and reference selection, FFT performance data across four clock/reference combinations, DIP-switch power-down control, and out-of-range LED indication - all critical for ADC validation in precision measurement systems.

Technical Context

The ADS1601EVM implements a modular signal chain architecture compliant with TI's mezzanine-level interface standard, allowing direct connection to TMS320C6713, C6711, C6416, and VC5510 DSKs. It features dual ±6-VDC analog front-end supply, +5-VDC analog core, +3.3-VDC digital I/O, and +1.8-VDC digital core rails routed through P5/J5 connector with defined pinout.

Analog interface flexibility includes jumper-selectable single-ended (J3 SMA) or differential (J1/P1 or J4 Audio Precision) input paths, W2-controlled internal/external reference selection, and W13-configurable 20 MHz/40 MHz onboard oscillator or external SMA clock injection. Digital control uses SW2 DIP switch for power-down and reference enable, plus W8–W10 jumpers for serial signal polarity selection.

Key Specifications

Availability

ADS1601EVM is available at Aetrix Electronics and suitable for precision ADC validation, high-fidelity audio test systems, and DSP-based signal acquisition requiring stable component supply and documented performance traceability.

Supply support for ADS1601EVM 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 specializing in analog and embedded processing technologies, with leadership in data converters, power management, and DSP solutions.

The ADS1601EVM belongs to TI's precision data converter evaluation platform family, designed specifically to accelerate development and validation of high-resolution delta-sigma ADCs in test and measurement, industrial process control, and audio instrumentation applications.

FAQ

What is the primary function of the ADS1601EVM?

The ADS1601EVM is an evaluation module built exclusively for the ADS1601 16-bit delta-sigma analog-to-digital converter. Its purpose is to provide a fully characterized, ready-to-use platform for validating key ADC specifications-including SNR, THD, and SFDR-under controlled analog and digital conditions. The ADS1601EVM enables both stand-alone testing and integration with TI DSP Starter Kits, making it essential for rapid prototyping and performance verification before system-level design commitment.

How does the ADS1601EVM connect to a DSP Starter Kit?

The ADS1601EVM connects to TI DSP Starter Kits (DSKs) such as the TMS320C6713 via the 5-6K Interface Board, a mezzanine-level adapter that routes serial control signals (FS, DOUT, CLK) and power between the EVM and DSK. This interface requires correct jumper settings on both the ADS1601EVM (e.g., W8–W10 for signal polarity, W12 for I/O voltage) and the 5-6K board (e.g., J13/J14 per SLAU104), ensuring timing alignment and proper signal level translation for reliable data capture in Code Composer Studio.

What analog input configurations does the ADS1601EVM support?

The ADS1601EVM supports three analog input paths: (1) single-ended input via SMA connector J3 (factory default), (2) differential input via socket strip/header J1/P1, and (3) calibrated low-distortion differential input via Audio Precision System Two™ source at J4 (connector not pre-installed). Selection is controlled by jumpers W3 and W5, and common-mode voltage is derived from the onboard reference section, enabling flexible signal conditioning for precision measurement setups using the ADS1601EVM.

Can the ADS1601EVM operate without an external DSP or host system?

Yes, the ADS1601EVM can operate as a stand-alone system. It includes onboard modulator clock sources (20 MHz or 40 MHz oscillator), configurable internal/external reference, and accessible test points for analog stimulus and digital signal monitoring. Users must supply appropriate power rails (±6 V, +5 V, +3.3 V, +1.8 V) and implement custom timing and data capture logic-but no DSP or host is required to verify ADS1601EVM functionality or obtain FFT performance data as documented in SLAU147.

What performance metrics are validated on the ADS1601EVM and how are they measured?

The ADS1601EVM validates SNR, THD, and SFDR across four clock/reference configurations (e.g., 90.71 dB SNR, –91.04 dB THD, 91.66 dB SFDR at –1 dBFS with internal clock and internal reference), using FFT analysis per Figures 2–7 and Tables 1–4 in SLAU147. Measurements are performed with calibrated analog stimuli applied via J3, J1/P1, or J4, and results are traceable to the ADS1601 device datasheet (SBAS274), confirming datasheet-grade performance directly on the ADS1601EVM hardware.