AD7896BRZ-REEL

Overview

The AD7896BRZ-REEL is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single supply voltage ranging from 2.7 V to 5.5 V and consumes 9 mW typical power. The device integrates an on-chip track-and-hold amplifier, clock oscillator, and serial interface within an 8-lead SOIC package. It supports a maximum throughput rate of 100 kHz with an 8 µs conversion time in high sampling mode. The analog input range spans from 0 V to VDD, utilizing the supply voltage as the internal reference.

Feature Summary

• Integrates a 12-bit SAR ADC, track-and-hold amplifier, and clock oscillator in a compact 8-lead package.
• Features a high-speed two-wire serial interface for easy connection to microcontrollers and DSPs.
• Operates from a single 2.7 V to 5.5 V supply with VDD serving as the internal reference.
• Includes an automatic power-down mode that activates after conversion to minimize energy consumption.

Applications

• Battery-powered portable instrumentation
• Industrial process control systems
• Data acquisition modules

Procurement Notes

Verify the specific suffix 'BRZ' against the manufacturer's datasheet to confirm industrial temperature range (-40°C to +85°C) and RoHS compliance status. Ensure the reel packaging matches the required quantity specifications for the production line. Cross-reference the part number with official distributor catalogs to confirm current availability and lead times before finalizing procurement orders.

Selection Notes

Select this component when a single-channel, 12-bit resolution is required with minimal external circuitry. The integrated VDD reference eliminates the need for external voltage references, reducing board space. Consider the 100 kHz throughput limit and 8 µs conversion time for system timing requirements. Verify that the serial interface timing constraints align with the host processor's capabilities.

Part Context

The AD7896 belongs to Analog Devices' family of low-power, single-supply ADCs designed for space-constrained applications. It offers a complete data acquisition solution in an 8-lead package, distinguishing itself from competitors requiring multiple discrete components. The BRZ variant specifically denotes the industrial temperature grade and lead-free construction within the broader AD7896 product line.

Replacement Considerations

The AD7896ARZ-REEL7 is a parametric equivalent available from Analog Devices Inc. Both parts share identical functional specifications but differ in temperature rating; the ARZ version covers the commercial range (0°C to +70°C), whereas the BRZ covers the industrial range (-40°C to +85°C). Verify thermal requirements before substitution.