AD7767BRUZ-1

Overview

The AD7767BRUZ-1 is a high-performance, 24-bit oversampled successive approximation (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates at an output data rate of 64 kSPS with a dynamic range of 112.5 dB and a signal-to-noise ratio of 111.5 dB. The device consumes 10.5 mW of power while utilizing a 2.5 V supply voltage and supports logic interfaces ranging from 1.8 V to 3.6 V. Encased in a 16-lead TSSOP package, it features integral nonlinearity of ±7.6 ppm maximum and zero error drift of 15 nV/°C. The component includes an on-chip low-pass FIR filter with linear phase response and stop-band attenuation of 100 dB.

Feature Summary

• Oversampled SAR architecture providing high AC and DC accuracy with exceptionally low power consumption.
• Integrated digital FIR filter with linear phase response that eliminates out-of-band noise and reduces antialiasing requirements.
• Flexible interfacing options including synchronization capabilities for multiple devices and daisy-chain functionality via the SDI pin.

Applications

• Low power PCI/USB data acquisition systems
• Low power wireless acquisition systems
• Vibration analysis instrumentation
• High precision medical acquisition

Procurement Notes

Verify the specific suffix designation against official documentation to confirm the exact decimation rate and performance tier. Ensure the ordering information matches the required output data rate specifications before finalizing procurement. Cross-reference the package type and temperature range with project requirements.

Selection Notes

Select this component when a balance between moderate speed and high resolution is required for ultralow power applications. Consider the AD7767-2 variant if lower power and higher dynamic range are prioritized over speed. Evaluate the AD7767 model if a higher output data rate is necessary for the application bandwidth.

Part Context

This part belongs to the AD7767 family of 24-bit ADCs, which also includes the AD7767 and AD7767-2 variants. These devices share the same core architecture and package but differ in their decimation rates and resulting performance metrics. The family is designed for applications requiring precise measurement of small signal changes over a wide dynamic range.

Replacement Considerations

The AD7767-2 offers lower power consumption and higher dynamic range at a reduced data rate. The standard AD7767 provides a higher data rate with slightly lower dynamic range. Both alternatives maintain the same package and interface compatibility.