AD7899ARSZ-1

Analog To Digital Converters (ADC) Overview

The AD7899ARSZ-1 is a 14-bit successive-approximation analog-to-digital converter (ADC) from Analog Devices, housed in a 28-lead SSOP package. It operates on a single 5 V supply with typical power consumption of 80 mW and standby power of 20 µW. The device supports a maximum throughput rate of 400 kSPS with a conversion time of 2.2 µs and an acquisition time of 0.3 µs. It features ±10 V and ±5 V bipolar input ranges, overvoltage protection up to ±18 V, and a high-speed parallel interface compatible with 3 V or 5 V logic.

Analog To Digital Converters (ADC) Feature Summary

• Integrated signal conditioning circuitry allows direct acceptance of standard industrial voltage ranges without external scaling components.
• High-speed parallel data bus enables efficient interfacing with microprocessors, microcontrollers, and digital signal processors.
• Analog inputs include robust overvoltage protection, permitting operation beyond the selected input range limits without device damage.
• Flexible clocking options allow selection between an internal laser-trimmed oscillator and an external clock source for precise timing control.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring fast data acquisition
• Portable instrumentation powered by single-supply batteries
• Data acquisition modules interfacing with 3 V or 5 V digital logic

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'ARSZ-1' against the manufacturer's current ordering guide to confirm the SSOP package variant and ±10 V/±5 V input range configuration. Ensure compatibility with system voltage levels and thermal requirements before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 14-bit resolution and 400 kSPS throughput are required within a low-power single-supply design. Choose the -1 version specifically for applications needing ±10 V or ±5 V bipolar input ranges. Consider the SSOP package constraints for PCB layout and thermal management during the design phase.

Analog To Digital Converters (ADC) Part Context

The AD7899 series comprises three variants differentiated by input range: the -1 handles ±10 V and ±5 V, the -2 supports 0 V to 5 V and 0 V to 2.5 V, and the -3 manages ±2.5 V. All share identical core ADC performance, power specifications, and interface characteristics, differing only in the internal signal scaling network.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include AD7899AR-1 for SOIC packages. Verify that any substitute maintains the 400 kSPS throughput and 14-bit accuracy specifications required by the application.