AD7892AN-2

Overview

The AD7892AN-2 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 500 kSPS with a conversion time of 1.6 µs. The device features an on-chip track/hold amplifier, a +2.5 V internal reference, and versatile interface structures supporting both serial and parallel connections to microprocessors. It accepts a unipolar analog input range of 0 V to +2.5 V and provides straight binary output coding.

Feature Summary

• Single +5 V power supply operation for low-power applications
• Integrated track/hold amplifier and +2.5 V internal voltage reference
• Flexible digital interface supporting both high-speed serial and parallel modes
• Unipolar analog input range of 0 V to +2.5 V

Applications

• Portable instrumentation systems requiring low power consumption
• Industrial data acquisition systems interfacing with microcontrollers
• Digital signal processing front-end circuits

Procurement Notes

Verify the specific suffix AN-2 against official documentation to confirm the plastic DIP package and 0 V to +2.5 V input range specifications. Ensure compatibility with system requirements for single-supply operation and 500 kSPS sampling rates before procurement.

Selection Notes

Select this component when a 12-bit resolution and 500 kSPS throughput are required within a single +5 V supply constraint. The AD7892AN-2 is appropriate for applications needing a 0 V to +2.5 V input range without external scaling circuitry.

Part Context

The AD7892 series utilizes Linear Compatible CMOS (LC2MOS) technology, combining precision bipolar circuits with low-power CMOS logic. This family includes variants with different input ranges and throughput speeds, such as the AD7892-1 and AD7892-3, which offer ±10 V/±5 V and ±2.5 V ranges respectively at varying sample rates.

Replacement Considerations

Direct substitutes include other ADI ADCs with matching 12-bit resolution, 500 kSPS speed, and 0 V to +2.5 V input range. Verify pinout compatibility and interface logic levels when considering alternative models.