AD7892BR-3

Overview

The AD7892BR-3 is a high-speed, low-power 12-bit analog-to-digital converter (ADC) fabricated in Analog Devices' LC2MOS process. It operates from a single +5 V supply and achieves a throughput rate of 600 kSPS with a conversion time of 1.47 µs. The device features an internal +2.5 V reference and accepts an analog input range of ±2.5 V. It includes overvoltage protection allowing inputs up to ±7 V without damage. The part provides both parallel and serial interface options for microprocessor connectivity and is housed in a 24-lead SOIC package.

Feature Summary

• Integrated signal scaling, track/hold amplifier, and reference circuitry on a single chip
• Flexible interface architecture supporting both parallel and serial data output modes
• Built-in overvoltage protection on analog inputs to prevent port damage
• Low power consumption suitable for portable applications

Applications

• Portable instrumentation systems requiring low power operation
• Industrial control loops utilizing serial or parallel microprocessor interfaces
• Data acquisition systems interfacing with digital signal processors

Procurement Notes

Verify the specific suffix 'BR-3' against official manufacturer documentation to confirm the exact temperature grade, accuracy class, and packaging configuration. Ensure that the required analog input range matches the ±2.5 V specification associated with this variant before finalizing procurement orders.

Selection Notes

Select this component when a 12-bit resolution and 600 kSPS sampling rate are required within a single-supply design. Consider the ±2.5 V input range and the availability of both parallel and serial interface modes for system integration flexibility. Evaluate the internal reference specifications against external precision requirements if tighter tolerances are needed.

Part Context

The AD7892 belongs to a family of fast, low-power ADCs designed for single-supply operation. This specific model utilizes the LC2MOS mixed technology process to combine precision bipolar circuits with low-power CMOS logic, enabling high performance in a compact form factor.

Replacement Considerations

AD7892AR-3Z