Analog Devices Inc. EVAL-AD7472CBZ

Overview

EVAL-AD7472CBZ from Analog Devices is a dedicated evaluation board for the AD7472 12-bit, high-speed, low-power successive approximation ADC, supporting up to 1.1 MSPS sampling with on-board analog buffering, reference (AD780), and bias-up circuitry for bipolar input conditioning. It enables rapid characterization of AD7472 performance in precision data acquisition systems requiring DC accuracy and AC fidelity.

For engineers reviewing the EVAL-AD7472CBZ datasheet, EVAL-AD7472CBZ pinout, EVAL-AD7472CBZ application, or EVAL-AD7472CBZ equivalent, this board delivers verified ADC evaluation capability with flexible clocking (25 MHz on-board oscillator or external SK1), dual analog input paths (SK3 bipolar / SK5 unipolar), and full software-controlled FFT/DSO/histogram analysis via EVAL-CONTROL BRD2 interface.

Technical Context

The EVAL-AD7472CBZ implements a complete signal chain for the AD7472 ADC, including AD780 ±2.5 V/±3 V reference, AD797 (bipolar input buffer), AD711 (unipolar input buffer), and OP07 (bias-up circuit buffer). It supports both standalone operation with external ±5 V/AGND/DGND supplies and integrated control via the 96-pin EVAL-CONTROL BRD2 interface.

Link configuration (LK1–LK11) defines functional modes: LK3 selects CLKIN source (EVAL-CONTROL BRD2, on-board 25 MHz oscillator, or external SK1); LK10 routes VIN between bias-up (bipolar) or direct buffer (unipolar); LK7 configures VDRIVE sourcing (DVDD or external J3); and LK1/LK10 jointly enable ±1.25 V → 0–2.5 V level shifting for bipolar signals.

Key Specifications

Availability

EVAL-AD7472CBZ is available at Aetrix Electronics and suitable for precision ADC validation, mixed-signal test bench development, and high-fidelity data acquisition system prototyping requiring stable component supply, traceable calibration-grade hardware, and production-ready evaluation infrastructure.

Supply support for EVAL-AD7472CBZ 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, with design centers and manufacturing facilities worldwide.

The EVAL-AD7472CBZ belongs to Analog Devices' precision data converter evaluation platform family, engineered specifically to accelerate validation of SAR ADCs in applications demanding low noise, high linearity, and repeatable metrology-grade measurement.

FAQ

What is the primary function of the EVAL-AD7472CBZ?

The EVAL-AD7472CBZ is a dedicated evaluation board designed exclusively for the AD7472 12-bit successive approximation ADC. It provides full signal conditioning-including analog buffering (AD797/AD711), precision reference (AD780), bipolar bias-up circuitry, and configurable clocking-to enable accurate, repeatable characterization of the AD7472's DC and AC performance metrics such as INL, DNL, SNR, and THD. The EVAL-AD7472CBZ is not a production-ready module but a lab-grade validation tool.

Does the EVAL-AD7472CBZ support both unipolar and bipolar analog inputs?

Yes, the EVAL-AD7472CBZ supports both input types via separate BNC sockets: SK5 accepts unipolar signals (0 V to 2.5 V), which are buffered directly to the AD7472 VIN pin; SK3 accepts bipolar signals (−1.25 V to +1.25 V), which pass through an on-board bias-up circuit (OP07-based) to shift the range to 0 V to 2.5 V before reaching the AD7472. Link LK10 must be set to Position A for bipolar mode and Position B for unipolar mode to route correctly.

Can the EVAL-AD7472CBZ operate without the EVAL-CONTROL BRD2?

Yes, the EVAL-AD7472CBZ supports standalone operation. When used independently, external ±5 V supplies must be applied to J2 (VDD, VSS, AGND) and optionally J3 (VDRIVE, DGND), and control signals (CLKIN, CONVST, RD, CS) must be provided externally via SK1, SK2, and header pins. All link settings (e.g., LK2–LK9) must be manually configured for external supply and signal routing-no EVAL-CONTROL BRD2 dependency is required for basic ADC stimulus and data capture.

What software tools are included with the EVAL-AD7472CBZ?

The EVAL-AD7472CBZ ships with PC software that runs on Windows and interfaces with the EVAL-CONTROL BRD2 to control the board. It provides real-time digital storage oscilloscope (DSO) display, fast Fourier transform (FFT) analysis, histogram generation, and binary/raw data export. Configuration files (*.cfg) define AD7472-specific parameters (e.g., 12-bit resolution, 2.5 V full-scale, max 950 kSPS), and the software loads corresponding DSP firmware (ad7472.PRG) to the EVAL-CONTROL BRD2 for synchronized operation.

Is the EVAL-AD7472CBZ suitable for life support or safety-critical applications?

No. Per Analog Devices' documentation, the EVAL-AD7472CBZ is explicitly intended for device evaluation only-not for production, medical, or life support use. It is supplied "as is" without warranties of merchantability or fitness for purpose, and its use in life support devices or systems is strictly prohibited. For certified production hardware, designers must implement their own validated PCB layout, power integrity, grounding, and compliance testing aligned with IEC 60601 or ISO 13485 requirements.