Analog Devices Inc. EVAL-AD7993EBZ

Overview

EVAL-AD7993EBZ from Analog Devices is an evaluation board designed for the AD7993, a 4-channel, 10-bit, I²C-compatible successive approximation ADC operating from 2.7 V to 5.5 V with 2 μs conversion time and 11 MHz input bandwidth. It supports configurable analog input routing via SMB connectors (AN0–AN3), on-board AD8691 op amps, AD5245 digital potentiometers, and AD780 2.5 V/3 V precision reference.

For engineers reviewing the EVAL-AD7993EBZ datasheet, EVAL-AD7993EBZ pinout, EVAL-AD7993EBZ application, or EVAL-AD7993EBZ equivalent, this board enables rapid functional validation of the AD7993 in sensor signal conditioning, industrial data acquisition, and embedded I²C-based measurement systems - with USB-powered operation, PC software control, and flexible link-based configuration.

Technical Context

The EVAL-AD7993EBZ implements full hardware support for the AD7993BRUZ-0, including dedicated analog front-end conditioning (four AD8691 op amps), dual AD5245 digital potentiometers for programmable gain/offset, and selectable reference sources (AD780 2.5 V/3 V or 5 V supply). Power is delivered via USB (J1), with onboard ADP3303 (3.3 V) and ADP3330 (3.6 V) LDOs enabling independent supply domains for ADC and signal chain components.

Configuration is managed through 15 physical jumpers (LK1–LK15) that control VIN routing, op amp enablement/supply, ADC VDD source (5 V or 3.3 V), reference selection (AD780 or 5 V), and VIN4 connection options (AN3, potentiometer, or TMP37 temperature sensor). Communication uses a Cypress USB microcontroller (U1) interfacing with PC software over virtual COM port.

Key Specifications

Availability

EVAL-AD7993EBZ is available at Aetrix Electronics and suitable for industrial data acquisition, sensor interface prototyping, and I²C-based embedded ADC validation requiring stable component supply and full evaluation capability.

Supply support for EVAL-AD7993EBZ 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-AD7993EBZ belongs to Analog Devices' precision data acquisition evaluation platform family, engineered to accelerate development of low-power, multi-channel I²C ADC applications in test equipment, process control, and environmental monitoring.

FAQ

What is the primary function of the EVAL-AD7993EBZ?

The EVAL-AD7993EBZ is a dedicated evaluation board for the AD7993BRUZ-0 4-channel, 10-bit I²C ADC. It provides complete hardware infrastructure-including SMB analog inputs, op amp front-end, digital potentiometers, precision reference, and USB interface-to validate ADC performance, configure signal chains, and develop firmware without custom PCB design. The EVAL-AD7993EBZ enables immediate functional testing under real-world conditions.

Does the EVAL-AD7993EBZ support both AD7993 and AD7994 devices?

Yes, the EVAL-AD7993EBZ is shared with the AD7994 and explicitly supports both parts per Analog Devices documentation. The board accommodates the AD7993 (10-bit) and AD7994 (12-bit) variants in the same BRUZ-0 package. All hardware resources-op amps, references, power rails, and USB interface-are fully compatible with either device, and the included PC software auto-detects resolution during initialization.

How is power delivered to the EVAL-AD7993EBZ?

The EVAL-AD7993EBZ receives power exclusively via the USB mini-B connector (J1), supplying 5 V to the board. This 5 V rail powers the Cypress USB controller (U1), EEPROM (U2), and optionally the AD7993 VDD through jumper LK7-A. An onboard ADP3303ARTZ-3.3-RL7 regulator provides a clean 3.3 V supply for ADC VDD when LK7 is set to Position B, enabling low-noise operation independent of USB bus variation.

Can the EVAL-AD7993EBZ measure temperature directly?

Yes, the EVAL-AD7993EBZ integrates a TMP37GRTZ-REEL7 precision temperature sensor. Via jumper LK15-C, VIN4 of the AD7993 is routed to the TMP37 output, allowing direct digitization of ambient temperature with ±1°C accuracy from 5°C to 100°C. The PC software displays real-time temperature values in °C, and the sensor is factory-calibrated - no external compensation is required when using this configuration.

What software tools are included with the EVAL-AD7993EBZ?

The EVAL-AD7993EBZ kit includes a CD with Windows-compatible evaluation software featuring a graphical user interface with digital storage oscilloscopes (DSOs), channel selection (CH1–CH4), sweep mode (256-point ramp), code/volt display toggle, limit alerting, and firmware loading for the Cypress USB controller. The software also bundles PDF versions of the EVAL-AD7993EBZ user guide and the AD7993/AD7994 datasheet for offline reference.