AD7853BRZ-REEL

Overview

The AD7853BRZ-REEL is a high-speed, low-power 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc. It operates from a single 3 V to 5.5 V power supply and supports a throughput rate of up to 200 kSPS. The device features a pseudo-differential input range of 0 V to VREF or bipolar ±VREF/2, selectable via the AMODE pin. It includes an internal voltage reference and offers flexible serial interface modes compatible with SPI, QSPI, and 8051 microprocessors. Power management options include automatic power-down after conversion and sleep modes, achieving typical dissipation of 12 mW at 3 V.

Feature Summary

• Integrated self-calibration and system calibration capabilities ensure accurate operation over time and temperature variations.
• Flexible serial interface supports multiple communication protocols including SPI, QSPI, and 8051 compatibility.
• Comprehensive power management features allow for automatic power-down after conversion and deep sleep modes.

Applications

• Battery-powered systems such as personal digital assistants and mobile communications devices
• Medical instruments requiring precise analog signal acquisition
• Instrumentation and control systems needing high-speed data conversion

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Ensure that the REEL designation matches the required tape-and-reel specifications for automated assembly processes. Cross-reference the component marking with official datasheets to validate authenticity and revision level before integration into production designs.

Selection Notes

Select this component when a single-supply 12-bit ADC with 200 kSPS speed is required in a compact surface-mount package. Consider the AD7853L variant if lower power consumption is prioritized over maximum sampling speed. Verify that the system clock frequency requirements align with the specified master clock limits for the selected temperature grade.

Part Context

This part belongs to the AD7853 family of sampling ADCs, which also includes the AD7853L optimized for lower power applications. The family utilizes a Successive Approximation Register (SAR) architecture and is designed for applications requiring moderate resolution with high throughput. The BRZ suffix indicates a specific commercial-grade version available in a SOIC package.

Replacement Considerations

The AD7853LBRZ-REEL serves as a lower-power alternative within the same family, offering 100 kSPS throughput. Direct pin-compatible replacements should be verified against the latest Analog Devices substitution guides to ensure electrical parameter compatibility.