Analog Devices Inc. EVAL-AD7606-6EDZ

Overview

EVAL-AD7606-6EDZ from Analog Devices is an evaluation board for the AD7606-6 - a 6-channel, 16-bit, simultaneous-sampling analog-to-digital data acquisition system (DAS) supporting ±10 V/±5 V bipolar inputs, 200 kSPS throughput per channel, and integrated 2.5 V reference. It enables rapid prototyping of precision power-line monitoring, motor control, and industrial data acquisition systems.

For engineers reviewing the EVAL-AD7606-6EDZ datasheet, EVAL-AD7606-6EDZ setup guide, EVAL-AD7606-6EDZ interface options, or EVAL-AD7606-6EDZ compatibility with AD7606-6 hardware, this board provides validated signal chain configuration, SPI/parallel interface support, on-board LDO regulation, and direct connection to PC via USB-to-serial bridge for immediate firmware-driven testing and performance characterization.

Technical Context

The EVAL-AD7606-6EDZ implements the full signal path of the AD7606-6 IC: analog front-end with 1 MΩ input impedance, second-order anti-aliasing filter (22 kHz cutoff), track-and-hold, 16-bit SAR ADC core, and flexible digital interface. It supports both internal (2.5 V) and external reference configurations, oversampling ratios up to ×64, and dual conversion start (CONVST A/B) for synchronized multi-channel sampling.

Board-level design includes ESD-protected analog inputs (7 kV HBM), decoupled AVCC/AGND planes, VDRIVE-compatible logic interface (2.3 V–5.25 V), and FRSTDATA/BUSY timing diagnostics. All critical timing parameters - tCONV (≤4 µs), tWAKE-UP STANDBY (100 µs), and serial clock limits (up to 23.5 MHz) - are preserved in hardware layout and firmware examples.

Key Specifications

Availability

EVAL-AD7606-6EDZ is available at Aetrix Electronics and suitable for power-line monitoring, multiphase motor control, and instrumentation systems requiring stable component supply, validated reference designs, and fast-turn evaluation support.

Supply support for EVAL-AD7606-6EDZ 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The EVAL-AD7606-6EDZ belongs to Analog Devices' precision data acquisition evaluation platform family, designed specifically to accelerate development of high-fidelity, multi-channel measurement systems using their AD760x-series DAS ICs.

FAQ

What is the primary function of the EVAL-AD7606-6EDZ?

The EVAL-AD7606-6EDZ is a fully assembled and tested evaluation board for the AD7606-6 analog-to-digital converter. Its purpose is to enable engineers to quickly evaluate the electrical performance, interface behavior, and system integration of the AD7606-6 - including simultaneous 6-channel sampling, bipolar input handling, oversampling, and parallel/SPI readout - without designing custom hardware. The EVAL-AD7606-6EDZ includes all necessary power regulation, signal conditioning, and PC interface circuitry.

Does the EVAL-AD7606-6EDZ support both internal and external reference modes?

Yes, the EVAL-AD7606-6EDZ supports both reference configurations. It features an onboard 2.5 V precision reference (ADR4525) that can be selected via the REF SELECT jumper to drive the AD7606-6's internal reference buffer. Alternatively, users can disable the internal reference and apply an external reference voltage (2.475 V–2.525 V) to the REFIN/REFOUT pin using the dedicated test point and header. This flexibility allows validation under both factory-calibrated and user-defined reference conditions.

Can the EVAL-AD7606-6EDZ be used with other AD760x devices like AD7606 or AD7606-4?

No - the EVAL-AD7606-6EDZ is specifically optimized for the AD7606-6 variant. While it shares the same 64-lead LQFP footprint and core architecture with the AD7606 (8-channel) and AD7606-4 (4-channel), differences in pin mapping (e.g., CONVST B functionality, DB[15:0] assignment, and OS[2:0] routing) and board-level component selection (e.g., analog input protection network scaling) make it incompatible as a drop-in platform for those variants. Analog Devices provides separate evaluation boards - EVAL-AD7606-PMDZ and EVAL-AD7606-4EDZ - for those devices.

What software and drivers are required to operate the EVAL-AD7606-6EDZ?

The EVAL-AD7606-6EDZ uses an FTDI FT232RL USB-to-serial bridge, requiring only standard FTDI virtual COM port (VCP) drivers - available free from ftdichip.com - for Windows, Linux, and macOS. Analog Devices supplies the open-source evaluation software (AD7606 Evaluation Software) and firmware binaries compatible with the board's microcontroller. No additional SDKs or proprietary toolchains are needed to perform basic acquisition, register configuration, and waveform capture.

How is analog input protection implemented on the EVAL-AD7606-6EDZ?

The EVAL-AD7606-6EDZ implements robust analog input protection aligned with the AD7606-6's 7 kV HBM ESD rating. Each of the six differential input channels includes series current-limiting resistors, TVS diodes clamping to AVCC/AGND rails, and RC filtering matching the device's specified ±16.5 V absolute maximum input tolerance. Input connectors are screw-terminal based for secure field wiring, and PCB layout follows strict analog ground separation and guard ring practices to preserve SNR (95.5 dB typical) and THD (−107 dB) performance.