AD7892BRZ-3

Overview

The AD7892BRZ-3 is a 12-bit successive approximation 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, a track/hold amplifier, and flexible serial or parallel interfaces. It accepts a ±2.5 V analog input range and includes overvoltage protection up to ±7 V on the analog inputs. Typical power consumption is 60 mW in normal operation.

Feature Summary

• Integrated signal scaling allows direct handling of ±2.5 V input signals while operating from a single +5 V supply.
• Flexible interface architecture supports both high-speed parallel connections and three-wire serial communication for microprocessors and DSPs.
• On-chip track/hold amplifier ensures accurate acquisition of full-scale sine waves at maximum sampling rates.
• Built-in overvoltage protection safeguards analog input ports against transient voltages exceeding the specified range.

Applications

• Portable instrumentation systems requiring low power consumption
• Industrial data acquisition modules
• Digital signal processing front-ends

Procurement Notes

Verify the specific suffix 'BRZ-3' corresponds to the required temperature range, accuracy class, and packaging format. Confirm that the ±2.5 V input range matches the application requirements. Ensure compatibility with the intended serial or parallel bus timing specifications before finalizing procurement.

Selection Notes

Select this component when a 12-bit resolution and 600 kSPS speed are required within a single-supply environment. Consider the AD7892BRZ-3 specifically for applications needing a ±2.5 V input range with overvoltage tolerance. Evaluate the trade-off between parallel and serial interface modes based on available microprocessor resources.

Part Context

The AD7892 series comprises multiple variants differentiated by input voltage ranges and throughput speeds. The AD7892-3 variant specifically targets ±2.5 V inputs with 600 kSPS performance. Other variants like the AD7892-1 and AD7892-2 offer different input ranges and lower throughput rates of 500 kSPS.

Replacement Considerations

AD7892ARZ-3REEL is a documented equivalent part number offering identical electrical characteristics and functionality.