Analog Devices Inc. EVAL-AD7995EBZ

Overview

EVAL-AD7995EBZ from Analog Devices is a USB-powered evaluation board designed to characterize the AD7995 - a 4-channel, 10-bit, I²C-compatible successive approximation ADC with 1 μs conversion time, 2.7 V to 5.5 V single-supply operation, and 14 MHz input bandwidth. It supports configurable analog input routing, on-board precision reference (2.5 V/3 V), and digital potentiometer-based test signal generation for lab validation of sensor interface and data acquisition systems.

For engineers reviewing the EVAL-AD7995EBZ datasheet, EVAL-AD7995EBZ pinout, EVAL-AD7995EBZ application, or EVAL-AD7995EBZ equivalent, this page delivers verified hardware configuration details, supported software features, USB interface behavior, link-option mapping, and component-level BOM context - all essential for rapid ADC performance validation and system integration planning.

Technical Context

The EVAL-AD7995EBZ implements full functional evaluation of the AD7995 ADC using a Cypress USB microcontroller (U2) for host communication, ADP3303AR-3.3 and ADP3330ARTZ-3.6 regulators for clean analog/digital supply domains, and AD780ARZ bandgap references for stable 2.5 V or 3 V VREF selection. Input channels AN0–AN3 are routed via SMB connectors and configurable jumpers (LK1–LK14) to either external signals or AD5245 digital potentiometers.

On-board AD8691 op amps condition inputs in selectable gain/buffer configurations, while firmware-controlled sweep mode acquires 256-point linear sweeps across potentiometer output ranges. Power is derived solely from the USB 5 V supply (J1), eliminating need for external sources.

Key Specifications

Availability

EVAL-AD7995EBZ is available at Aetrix Electronics and suitable for sensor interface validation, industrial data acquisition prototyping, and embedded ADC performance benchmarking requiring stable component supply, traceable sourcing, and lifecycle continuity support.

Supply support for EVAL-AD7995EBZ 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, serving industrial, automotive, communications, and healthcare markets.

The EVAL-AD7995EBZ belongs to Analog Devices' precision data converter evaluation platform family, engineered to accelerate development of low-power, multi-channel sensor-to-digital systems with I²C connectivity and flexible analog front-end configuration.

FAQ

What is the primary function of the EVAL-AD7995EBZ?

The EVAL-AD7995EBZ is a dedicated evaluation board for the AD7995 4-channel, 10-bit I²C-compatible ADC. It provides complete hardware and software infrastructure - including USB interface, configurable analog inputs, precision reference, digital potentiometers, and op amp signal conditioning - to validate ADC performance, test I²C communication, and prototype sensor interface circuits without custom PCB design. The EVAL-AD7995EBZ enables immediate lab characterization of resolution, linearity, noise, and timing behavior under real-world signal conditions.

Does the EVAL-AD7995EBZ support both AD7991 and AD7995 devices?

No - the EVAL-AD7995EBZ is specifically configured and calibrated for the AD7995 (10-bit version). While the board shares mechanical and schematic compatibility with the AD7991 variant (12-bit), its default link settings, reference scaling, and software calibration assume the AD7995's 10-bit full-scale range and associated transfer function. Using it with AD7991 requires manual recalibration and verification of gain/offset errors due to differing LSB size and internal architecture tolerances.

How is power delivered to the EVAL-AD7995EBZ?

Power is supplied exclusively via the USB mini-AB connector (J1), delivering 5 V to the board. This 5 V rail powers the Cypress USB microcontroller (U2), ADP3303AR-3.3 regulator (generating 3.3 V for the AD7995), and ADP3330ARTZ-3.6 regulator (supplying 3.6 V to op amps). No external power supply is needed or supported - the EVAL-AD7995EBZ is fully self-contained for benchtop evaluation.

What software tools accompany the EVAL-AD7995EBZ?

The EVAL-AD7995EBZ ships with PC-based evaluation software on CD-ROM, featuring a dedicated GUI that supports single-shot sampling, continuous acquisition, 256-point linear sweeps across AD5245 potentiometer outputs, real-time waveform display in DSO windows, and toggle between code and voltage units. Firmware loading, reference selection (2.5 V/3 V), channel enablement, and potentiometer value adjustment are all controllable directly from the interface - no SDK or driver installation beyond standard USB CDC class is required.

Can the EVAL-AD7995EBZ be used for production systems?

No - the EVAL-AD7995EBZ is strictly intended for device evaluation and development purposes. Analog Devices explicitly states it is "not authorized for use in life support devices or systems" and is supplied "as is" without warranties of merchantability or fitness for purpose. Its layout, component selection, thermal design, and regulatory compliance are optimized for lab testing - not for reliability, EMI immunity, or long-term deployment in end equipment. Production designs must use the AD7995 IC in a purpose-built PCB.