Analog Devices Inc. EVAL-AD7610CBZ

Overview

EVAL-AD7610CBZ from Analog Devices is an evaluation board designed for the AD7610 16-bit, 250 kSPS PulSAR® successive approximation register (SAR) analog-to-digital converter. It provides buffered parallel (16-bit) and serial interfaces, on-board precision reference (AD780/ADR431/ADR435), clock oscillator, analog signal conditioning circuitry, and supports unipolar/bipolar input ranges (0–5 V, 0–10 V, ±5 V, ±10 V). It is used to validate ADC performance in data acquisition and DSP interface applications.

For engineers reviewing the EVAL-AD7610CBZ datasheet, EVAL-AD7610CBZ pinout, EVAL-AD7610CBZ application, or EVAL-AD7610CBZ equivalent, this page delivers verified technical context, interface configuration options, stand-alone vs. capture-board operation modes, analog input scaling flexibility, and software-supported FFT/histogram testing capabilities - all specific to the AD7610 target device on this board.

Technical Context

The EVAL-AD7610CBZ implements a gate array (U10) that generates CNVST, manages BUSY signaling, and buffers conversion data for parallel (BD[0:15]) or serial (SDOUT/SCLK/SYNC) output. It supports both stand-alone mode (with internal CNVST generation at up to 250 kSPS) and synchronized operation with EVAL-CED1Z or EVAL-CONTRL BRDxZ capture boards via a 96-pin DIN connector.

Analog input conditioning includes dual op-amps (U6/U7), selectable ±12 V/±5 V supplies, jumper-configurable gain and common-mode biasing, and SMB connectors for low-noise signal injection. Reference circuitry uses AD780, ADR431, or ADR435 with buffer amplification, and power domains are split into isolated analog/digital ground planes connected under the ADC to preserve 16-bit resolution.

Key Specifications

Availability

EVAL-AD7610CBZ is available at Aetrix Electronics and suitable for high-resolution data acquisition systems, industrial sensor interfacing, and embedded DSP prototyping requiring stable component supply and validated ADC evaluation infrastructure.

Supply support for EVAL-AD7610CBZ 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, headquartered in Norwood, MA.

The EVAL-AD7610CBZ belongs to Analog Devices' PulSAR® evaluation platform family, engineered to accelerate development of precision data acquisition systems using their 14–18-bit SAR ADCs in industrial, instrumentation, and medical applications.

FAQ

What is the primary function of the EVAL-AD7610CBZ?

The EVAL-AD7610CBZ is an evaluation board specifically configured for the AD7610 16-bit, 250 kSPS PulSAR® SAR ADC. It enables hardware validation, interface testing (parallel/serial), dynamic performance characterization (FFT/SINAD), and DC accuracy verification (histogram) - all without requiring custom PCB design. The board integrates reference, clock, signal conditioning, and software-controlled test capabilities to streamline AD7610 integration into data acquisition systems.

Which ADC models does the EVAL-AD7610CBZ support beyond the AD7610?

The EVAL-AD7610CBZ is part of the broader EVAL-AD76XXCBZ platform supporting multiple 48-lead PulSAR® ADCs, including AD7612, AD7621–AD7625, AD7631–AD7634, AD7641–AD7643, AD7650–AD7655, AD7660–AD7667, AD7671–AD7679, and AD7951–AD7952. However, its default configuration, jumper settings (e.g., JP19 AVDD = +5V), and documented test procedures in the PrA revision are explicitly validated for the AD7610's 0–5 V/±5 V input range and 250 kSPS timing - not guaranteed for all listed variants without reconfiguration.

Can the EVAL-AD7610CBZ operate without a host capture board like EVAL-CED1Z?

Yes, the EVAL-AD7610CBZ supports stand-alone operation. When the CONTROL input to the gate array (U10) is held LOW (default), it autonomously generates CNVST, manages BUSY signaling, and outputs buffered 16-bit parallel data (BD[0:15]) continuously on the 40-pin IDC connector P2. No external capture board or PC software is required for basic conversion and data readout - though software is needed for FFT, histogram, or serial configuration via the SPP interface of the AD7610.

How is analog input range configured on the EVAL-AD7610CBZ for the AD7610?

Analog input range on the EVAL-AD7610CBZ is configured using a combination of jumpers (JP1–JP2 for buffer enable, JP3/J7/J8 for supply rails) and DIP switches (S16 positions 7 and 8 for output coding and interface mode). For AD7610-specific ranges (0–5 V, 0–10 V, ±5 V, ±10 V), the op-amp front-end (U6/U7) is set to unity gain with appropriate voltage dividers and common-mode biasing. Table 1 in the preliminary datasheet confirms these ranges are supported, and modifications for alternate ranges require solder-pad changes per AN594 guidance - not jumper-only adjustments.

Does the EVAL-AD7610CBZ include on-board clock and reference circuitry?

Yes, the EVAL-AD7610CBZ includes both. It features a 40 MHz local oscillator (U12) for master clock (MCLK) generation and a high-precision bandgap reference IC - selectable among AD780, ADR431, or ADR435 - with dedicated reference buffers (U2). These components provide stable, low-noise timing and reference voltage directly to the AD7610, eliminating the need for external clock sources or reference ICs during evaluation. The reference output is routed to the ADC REF pin via JP4 (REFS jumper), and MCLK drives both the gate array and, in serial slave mode, the ADC's SCLK input.