Analog Devices Inc. EVAL-AD7663CBZ

Overview

EVAL-AD7663CBZ from Analog Devices is an evaluation board designed for the AD7663 - a 16-bit, 250 kSPS single-ended bipolar SAR ADC with ±5 V input range. It provides buffered parallel (16-bit) and serial interfaces, on-board precision reference (AD780/ADR431/ADR435), clock oscillator, analog signal conditioning circuitry, and supports stand-alone or capture-board–based operation via 96-pin DIN interface.

For engineers reviewing the EVAL-AD7663CBZ datasheet, EVAL-AD7663CBZ pinout, EVAL-AD7663CBZ application, or EVAL-AD7663CBZ equivalent, this page delivers verified technical context, interface configuration options, power supply routing details, supported ADC modes (Warp/Normal/Impulse), and software-controlled test capabilities including histogram, FFT, and decimated AC analysis.

Technical Context

The EVAL-AD7663CBZ implements a gate array (U10) that generates CNVST, manages BUSY signaling, buffers ADC output data (BD[0:15]), and supports configurable read timing (during or after conversion). It interfaces with AD7663 via dedicated analog input (J1/J2 SMB connectors), reference path (JP4/JP20), and digital control lines (CNVST, BUSY, RD, CS).

Power delivery is segregated into analog (AVDD, ±12 V via SJ1) and digital (DVDD/OVDD, +5 V/3.3 V via SJ2) domains with isolated ground planes joined under the ADC to minimize noise coupling. Configuration is managed through dual DIP switches (S16/S35) and jumpers (JP1–JP22) enabling bipolar/unipolar input scaling, reference buffering, serial/parallel mode selection, and byte/word/18-bit data formatting.

Key Specifications

Availability

EVAL-AD7663CBZ is available at Aetrix Electronics and suitable for high-resolution data acquisition systems, industrial sensor signal chains, and precision test equipment requiring stable component supply and validated ADC performance characterization.

Supply support for EVAL-AD7663CBZ 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-AD7663CBZ belongs to Analog Devices' PulSAR® evaluation platform family, engineered specifically to accelerate development and validation of high-speed, high-accuracy SAR ADCs used in instrumentation, medical imaging, and automated test equipment.

FAQ

What is the primary function of the EVAL-AD7663CBZ?

The EVAL-AD7663CBZ is an evaluation board purpose-built for the AD7663 16-bit, 250 kSPS single-ended bipolar SAR ADC. It enables full characterization of the AD7663's DC and AC performance-including SNR, SINAD, THD, and SFDR-via on-board signal conditioning, reference, clocking, and PC-based software analysis. The EVAL-AD7663CBZ supports both stand-alone use and integration with Analog Devices' EVAL-CED1Z or EVAL-CONTROL-BRDX capture boards.

Does the EVAL-AD7663CBZ support the AD7663's ±5 V bipolar input range out of the box?

Yes. The EVAL-AD7663CBZ is factory configured for the ±5 V bipolar input range required by the AD7663, as confirmed in Table 1 and the "Evaluation Board Setting for Bipolar ADC Input Configurations" section. This configuration uses the on-board op-amp circuitry (U6/U7) and default jumper settings (JP3 = –12V, JP8 = +12V) to deliver proper common-mode and differential input conditions without hardware modification.

How does the EVAL-AD7663CBZ handle data output for the AD7663?

The EVAL-AD7663CBZ provides buffered 16-bit parallel output on the 40-pin IDC connector P2 (BD[0:15]) and supports serial communication via test points TP17–TP19 (SDOUT, SCLK, SYNC). Data format (straight binary or 2's complement) and interface mode (parallel vs. serial) are controlled by DIP switch S16 positions 7 and 8. In stand-alone mode, the gate array U10 drives continuous parallel output synchronized to BUSY transitions.

Can the EVAL-AD7663CBZ be used without a host capture board?

Yes. The EVAL-AD7663CBZ operates in stand-alone mode when the CONTROL input to gate array U10 is held LOW (default via pull-down). In this mode, U10 autonomously generates CNVST, manages BUSY signaling, and buffers AD7663 output data onto BD[0:15] without requiring EVAL-CED1Z or EVAL-CONTROL-BRDX. Power is supplied via SJ1 (analog) and SJ2 (digital), and configuration is set using S16/S35 switches and jumpers.

Which software tools are compatible with the EVAL-AD7663CBZ?

The EVAL-AD7663CBZ is fully supported by Analog Devices' AD76xx Evaluation Software, available in both CED (USB-based) and ECB (parallel-port–based) versions. This software enables histogram (DC noise), FFT (AC performance), and decimated AC testing, with real-time display of SNR, SINAD, THD, SFDR, and time-domain waveforms. Installation requires Windows 2000/XP, administrator privileges, and either USB 2.0 (CED) or bidirectional parallel port (ECB).