AD7764BRUZ-REEL7

Overview

The AD7764BRUZ-REEL7 is a high-performance, single-channel, 24-bit sigma-delta analog-to-digital converter manufactured by Analog Devices Inc. It operates with a maximum output data rate of 312.5 kSPS and achieves a dynamic range of 109 dB at this speed. The device features pin-selectable oversampling rates of 64×, 128×, and 256×, allowing for flexible configuration between bandwidth and noise performance. It integrates on-chip differential amplifiers for signal buffering and an internal reference buffer to minimize external component requirements. The ADC utilizes a full-band finite impulse response digital filter and communicates via a serial peripheral interface. It supports dual power supplies of 2.5 V and 5 V and functions within an industrial temperature range of −40°C to +85°C.

Feature Summary

• Integrates fully differential modulator inputs with on-chip differential amplifier and reference buffer
• Features a full-band, low-pass finite impulse response digital filter for enhanced anti-aliasing protection
• Supports synchronization of multiple devices via the SYNC pin and daisy-chaining capabilities
• Includes an overrange alert pin and digital gain correction registers for system monitoring

Applications

• Data acquisition systems
• Vibration analysis
• Instrumentation

Procurement Notes

Verify that the ordering suffix REEL7 corresponds to tape-and-reel packaging when sourcing components. Confirm the specific revision level matches the design requirements, as specifications are subject to change without notice. Ensure compatibility with the required 2.5 V and 5 V supply voltages during procurement planning.

Selection Notes

Select the AD7764BRUZ-REEL7 when a single-channel, high-speed 24-bit conversion is required alongside wide input bandwidth. Evaluate the decimation rate settings against the necessary trade-off between output data rate and dynamic range. Consider the integrated on-chip buffers if minimizing external signal conditioning complexity is a priority.

Part Context

This component belongs to the AD7764 series of sigma-delta analog-to-digital converters. Related devices in the family include the AD7760, AD7762, AD7763, AD7765, AD7766, and AD7767, which offer variations in channel count, output data rates, and interface types while maintaining similar architectural characteristics.

Replacement Considerations

Public confirmed substitute part numbers: AD7760, AD7762, AD7763, AD7765, AD7766, AD7767.