AD7892A-2REEL

Overview

The AD7892A-2REEL is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It features two single-ended input channels and operates from a single +5V power supply. The device integrates an on-chip track-and-hold amplifier and a precision internal reference voltage of +2.5V. It supports both serial and parallel digital interfaces for microprocessor connectivity. The component is housed in a 24-pin SOIC package and is rated for operation within a temperature range of -40°C to +85°C.

Feature Summary

• 12-bit resolution with 500 kSPS sampling rate
• Integrated track-and-hold amplifier and +2.5V internal reference
• Dual single-ended inputs with versatile serial/parallel interface
• Single +5V supply operation

Applications

• Industrial process control systems
• Data acquisition modules
• Portable instrumentation

Procurement Notes

Verify the specific speed grade suffix, as the AD7892 family includes variants with different sampling rates such as 500 kSPS and 600 kSPS. Confirm that the 'A' grade designation meets the required accuracy specifications for the application. Ensure the reel packaging format aligns with automated assembly equipment requirements.

Selection Notes

Select this component when a dual-channel, high-speed ADC with integrated reference is needed. Compare against the AD7892-3 variant if a higher 600 kSPS sampling rate is required. Verify that the single-ended input configuration matches the signal source characteristics. Check pin compatibility if replacing older AD7892 versions.

Part Context

This part belongs to the AD7892 family of high-speed, low-power SAR ADCs. The family shares a common architecture but differs in sampling speed grades and package options. The AD7892A-2REEL specifically denotes the A-grade performance level and the 2-speed variant within the series.

Replacement Considerations

The AD7892-3 is a faster variant offering 600 kSPS. Other family members like the AD7891 offer multiplexed inputs but differ in channel count and interface types.