AD7887BRZ-REEL

Overview

The AD7887BRZ-REEL is a high-speed, low-power 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 2.7 V to 5.25 V power supply and supports throughput rates up to 125 kSPS. The device features two single-ended analog inputs and an internal 2.5 V reference or external reference capability. It utilizes a successive approximation register (SAR) architecture with a serial interface compatible with SPI, QSPI, Microwire, and DSP standards. Packaged in an 8-lead MSOP, it offers flexible power management including shutdown modes consuming as little as 1 μA.

Feature Summary

• Configurable for single-channel or dual-channel operation via on-chip control register
• Integrated track-and-hold amplifier acquires signals within 500 ns
• Supports multiple serial communication protocols including SPI and Microwire
• Includes automatic power-down functionality after conversion cycles

Applications

• Battery-powered systems such as personal digital assistants and mobile communications
• Medical instruments requiring low power consumption
• Instrumentation and control systems
• High-speed modems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure package type and temperature grade alignment. Confirm that the reel packaging matches the required quantity for production integration. Cross-reference the revision history of the datasheet to validate all electrical specifications prior to final procurement decisions.

Selection Notes

Select this component when a small footprint 12-bit ADC with dual-channel capability is required. Ensure the system voltage falls within the 2.7 V to 5.25 V range. Consider the serial interface compatibility with the host microcontroller. Evaluate power requirements against the available shutdown and standby modes if battery life is a critical design constraint.

Part Context

This part belongs to the AD7887 family of micropower ADCs. It shares architectural similarities with other devices in the series but is distinguished by its specific 8-lead MSOP packaging and reel configuration. The BRZ suffix indicates a lead-free RoHS-compliant variant suitable for modern assembly processes.

Replacement Considerations

The AD7887ARZ is listed as a parameter-equivalent alternative. Verify pinout compatibility and electrical specification overlaps before substitution. Ensure the replacement part meets the same automotive qualification and temperature range requirements.