AD7767BRUZ-2

Overview

The AD7767BRUZ-2 is a high-performance, single-channel, 24-bit oversampled successive approximation (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates at an output data rate of 32 kSPS with a dynamic range of 115.5 dB and a total harmonic distortion of −118 dB. The device consumes 8.5 mW of power while operating from a 2.5 V supply and supports logic interfaces ranging from 1.8 V to 3.6 V. It features a fully differential input structure, on-chip low-pass FIR filter with linear phase response, and serial interface options including daisy-chain capability.

Feature Summary

• Oversampled SAR architecture providing high AC and DC accuracy with exceptionally low power consumption.
• Integrated digital FIR filter with linear phase response for out-of-band noise elimination.
• Flexible interfacing with synchronization and daisy-chain capabilities for multi-device systems.

Applications

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

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and reel specifications. Ensure compatibility with required voltage levels and reference configurations before procurement. Cross-reference part numbers with manufacturer databases to avoid counterfeit components.

Selection Notes

Select the AD7767BRUZ-2 when a 32 kSPS output data rate and maximum dynamic range are required. Consider this model over higher-speed variants if minimizing power dissipation is critical. Verify that the application requires a single-channel configuration and compatible serial interface protocols.

Part Context

The AD7767BRUZ-2 belongs to the AD7767 family of 24-bit ADCs, which includes variants optimized for different sampling rates. This specific model provides the highest dynamic range within the series by utilizing a decimation factor of 32. It shares architectural similarities with the AD7766 and AD7760 but offers distinct performance trade-offs regarding speed and power.

Replacement Considerations

Direct functional replacements within the same family include the AD7767BRUZ-1 for 64 kSPS applications or the standard AD7767BRUZ for 128 kSPS requirements. Evaluate these alternatives based on specific bandwidth needs versus power constraints.