AD7899ARSZ-1REEL

Overview

The AD7899ARSZ-1REEL is a 14-bit successive-approximation analog-to-digital converter (ADC) from Analog Devices, packaged in a 28-lead SSOP. It operates on a single 5 V supply and achieves a maximum throughput rate of 400 kSPS with a conversion time of 2.2 µs. The device features an internal 2.5 V reference and accepts bipolar input ranges of ±10 V or ±5 V. It includes overvoltage protection on analog inputs and supports both internal clock oscillation and external clocking via the CLKIN pin.

Feature Summary

• High-speed parallel interface compatible with 3 V and 5 V logic processors
• Integrated track/hold amplifier with 0.3 µs acquisition time
• Overvoltage protection allows analog inputs to exceed range limits without damage
• Power-saving standby mode accessible via the STBY pin

Applications

• Industrial process control systems requiring high accuracy
• Portable instrumentation powered by single supplies
• Data acquisition systems interfacing with microprocessors

Procurement Notes

Verify the specific suffix 'REEL' indicates tape-and-reel packaging rather than tube packaging when reviewing distributor listings. Confirm the '-1' designation corresponds to the required ±10 V or ±5 V bipolar input range for your application circuit design.

Selection Notes

Select this component if a 14-bit resolution with 400 kSPS throughput is required. Ensure the system accommodates the 28-pin SSOP footprint. Consider the -2 or -3 variants if unipolar or narrower bipolar input ranges are needed instead of the standard industrial ranges provided by the -1 version.

Part Context

This part belongs to the AD7899 family of fast, low-power ADCs. The ARSZ-1 variant specifically denotes the commercial temperature range (-40°C to +85°C), SOIC/SSOP package availability, and the -1 input range configuration. The REEL suffix specifies the manufacturing packaging format.

Replacement Considerations

Publicly confirmed substitutes include the AD7899AR-1 and AD7899BR-1. Verify that replacement parts match the required input voltage range and temperature specifications before integration.