Analog Devices Inc. EVAL-ADXRS614Z

Overview

EVAL-ADXRS614Z from Analog Devices is a dedicated evaluation board for the ADXRS614 ±50°/sec single-chip yaw rate gyro, enabling rapid functional and noise-performance validation without external components. It features a 20-lead DIP (0.3" width, 0.1" pin spacing) interface, 10 Hz default bandwidth via 100 nF COUT, and separate AGND/PGND planes for grounding flexibility in inertial sensing prototyping.

For engineers reviewing the EVAL-ADXRS614Z datasheet, EVAL-ADXRS614Z pinout, EVAL-ADXRS614Z application, or EVAL-ADXRS614Z equivalent, this board supports quick integration into motion-control validation, stabilization system testing, and angular-rate sensor characterization workflows where mechanical mounting, analog output fidelity, and low-bandwidth noise floor are critical selection criteria.

Technical Context

The EVAL-ADXRS614Z implements the exact reference circuit from the ADXRS614 datasheet, with identical component values and layout topology. It provides direct access to RATEOUT (analog voltage proportional to angular rate), TEMP (on-chip temperature sensor output), VRATIO (scale factor reference), and ST1/ST2 (self-test control inputs).

Separate analog and power ground planes (AGND and PGND) allow users to implement application-specific grounding strategies; shorting them is permitted if a single ground plane is required. AVCC and VDD are unconnected on-board, requiring user-supplied analog and charge pump supplies per ADXRS614 absolute maximum ratings.

Key Specifications

Availability

EVAL-ADXRS614Z is available at Aetrix Electronics and suitable for inertial measurement unit (IMU) development, robotics stabilization validation, and automotive electronic stability control (ESC) sensor characterization requiring stable component supply and traceable evaluation hardware.

Supply support for EVAL-ADXRS614Z 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-ADXRS614Z belongs to Analog Devices' precision inertial sensing evaluation platform family, designed specifically to accelerate development and verification of MEMS gyro-based motion detection systems.

FAQ

What is the primary function of the EVAL-ADXRS614Z?

The EVAL-ADXRS614Z is an evaluation board purpose-built for the ADXRS614 ±50°/sec yaw rate gyro. It provides immediate electrical and mechanical interface to validate the gyro's analog output linearity, noise performance, temperature drift, and self-test functionality without requiring custom PCB design. The EVAL-ADXRS614Z directly implements the manufacturer-recommended reference circuit, ensuring test results reflect the ADXRS614's true behavior under controlled conditions.

Does the EVAL-ADXRS614Z include the ADXRS614 IC?

Yes, the EVAL-ADXRS614Z includes the ADXRS614 MEMS yaw rate gyro mounted on-board. The board is not a blank carrier or adapter-it ships with the functional ADXRS614 device pre-installed and wired per the datasheet's recommended schematic, allowing out-of-box evaluation of the gyro's RATEOUT, TEMP, VRATIO, and ST1/ST2 signals.

How is bandwidth adjusted on the EVAL-ADXRS614Z?

Bandwidth on the EVAL-ADXRS614Z is set by the external capacitor COUT (C1 = 100 nF), yielding a default 10 Hz cutoff. To reduce bandwidth and lower noise, users can add or replace C1 with a larger capacitor-bandwidth scales inversely with capacitance per the ADXRS614's internal transimpedance amplifier configuration. No board modification is needed beyond capacitor replacement.

Why are AGND and PGND kept separate on the EVAL-ADXRS614Z?

AGND and PGND are isolated on separate copper planes to minimize coupling between analog signal paths and digital/charge-pump switching noise-a critical requirement for preserving the ADXRS614's microvolt-level output resolution. This separation allows engineers to evaluate grounding strategies before final system integration; the nodes may be shorted if a unified ground is preferred, but doing so may increase output noise in sensitive applications.

Can the EVAL-ADXRS614Z be used in production systems?

No, the EVAL-ADXRS614Z is explicitly intended for evaluation and prototyping only-not for production deployment. Analog Devices states it is supplied "as is" without warranties and prohibits use in life-support devices or systems. Its DIP footprint, lack of conformal coating, and unqualified thermal/mounting design make it unsuitable for field-deployed hardware; production designs must use the ADXRS614 in its qualified SOIC package with appropriate system-level validation.