AD7892ARZ-2REEL

Overview

The AD7892ARZ-2REEL is a 12-bit successive approximation analog-to-digital converter (ADC) fabricated in LC2MOS technology. It operates from a single +5 V supply and consumes 60 mW typically. The device features an on-chip track/hold amplifier, a +2.5 V internal reference, and versatile interface structures supporting both parallel and serial connections. This specific variant provides a 0 V to +2.5 V input voltage range with a throughput rate of 500 kSPS. It is housed in a 24-lead SOIC package.

Feature Summary

• Integrated signal scaling for direct handling of 0 V to +2.5 V analog inputs
• Flexible interface architecture allowing selection between parallel and serial modes via the MODE pin
• On-chip track/hold amplifier ensures accurate conversion at high sampling rates
• Built-in +2.5 V reference source eliminates the need for external components

Applications

• Portable instrumentation systems requiring low power consumption
• Industrial process control applications utilizing microprocessor interfaces
• Data acquisition systems interfacing with digital signal processors

Procurement Notes

Verify that the REEL suffix indicates tape-and-reel packaging rather than tube packaging. Confirm the -2 designation matches the required 0 V to +2.5 V input range. Ensure the ARZ suffix corresponds to the SOIC package and RoHS compliance status before finalizing procurement orders.

Selection Notes

Select this model when a unipolar 0 V to +2.5 V input range is required. Choose the -2 version over the -1 or -3 variants if bipolar inputs are not needed. Verify that the 500 kSPS throughput rate meets system speed requirements compared to the faster 600 kSPS option.

Part Context

This component belongs to the AD7892 family of single-supply ADCs. It shares core specifications such as resolution and architecture with other variants but differs in input range and throughput speed. The family includes models optimized for different voltage ranges and performance levels.

Replacement Considerations

Direct substitutes include AD7892BRZ-2REEL for improved accuracy or AD7892AN-2REEL for DIP packaging. Cross-family replacements like the AD7894 offer higher resolution but lower speed.