AD7767BRUZ-1-RL7

Overview

The AD7767BRUZ-1-RL7 is a single-channel, 24-bit oversampled successive approximation analog-to-digital converter (ADC) 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 operating from a 2.5 V supply voltage. It features a differential input structure, serial interface, and TSSOP-16 package. Key performance metrics include a total harmonic distortion of -118 dB, integral nonlinearity of ±7.6 ppm maximum, and zero error drift of 15 nV/°C. The component supports operation within a temperature range of -40°C to +105°C.

Feature Summary

• Oversampled SAR architecture providing high AC and DC accuracy with low power consumption
• On-chip low-pass FIR filter with linear phase response for out-of-band noise elimination
• Flexible digital interfacing supporting synchronization and daisy-chain capabilities

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 RL7 indicates reel packaging when sourcing components. Confirm that the BRUZ designation corresponds to the industrial temperature grade (-40°C to +105°C) and TSSOP-16 package type required for the design. Ensure compatibility with the 2.5 V analog/digital supply and 5 V reference voltage specifications during procurement validation.

Selection Notes

Select this model over the standard AD7767 or AD7767-2 based on the required 64 kSPS output data rate and associated 112.5 dB dynamic range. Consider the 10.5 mW power dissipation profile relative to system thermal constraints. Verify that the serial interface requirements align with the master clock and serial clock timing specifications provided in the datasheet.

Part Context

This component belongs to the AD7767 family of 24-bit ADCs, which includes variants optimized for different decimation rates and power levels. The AD7767-1 variant specifically targets applications requiring a balance between bandwidth and noise performance. It shares architectural similarities with related devices like the AD7766 series but offers distinct filtering characteristics and power profiles suitable for precision measurement tasks.

Replacement Considerations

Direct functional substitutes within the same family include the AD7767BRUZ-RL7 (128 kSPS) and AD7767BRUZ-2-RL7 (32 kSPS). These alternatives share identical pinouts and interfaces but differ in output data rate, dynamic range, and power consumption. Verify that the specific decimation rate and noise performance of the replacement meet the application requirements.