AD7989-1BCPZ-R2

Overview

The AD7989-1BCPZ-R2 is an 18-bit, 100 kSPS PulSAR analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 2.5 V supply with a logic interface range of 1.8 V to 5 V. The device features a true differential analog input voltage range of ±VREF and achieves a typical signal-to-noise ratio (SNR) of 98 dB at a reference voltage of 5 V. Power dissipation is specified at 400 µW for the core and 700 µW total at 100 kSPS throughput. It utilizes a versatile serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards.

Feature Summary

• Zero latency architecture with immediate data availability after conversion completion
• Proprietary serial interface supporting daisy-chaining capabilities on a single bus
• Low power consumption optimized for battery-powered applications

Applications

• Automated test equipment
• Data acquisition systems
• Medical instruments
• Machine automation

Procurement Notes

Verify the specific ordering suffix R2 against official documentation to confirm reel packaging specifications. Ensure compatibility with host system voltage levels and thermal requirements before finalizing procurement decisions.

Selection Notes

Select this component when high resolution and low power are required for single-channel applications. Consider the AD7989-5 variant if higher throughput speeds up to 500 kSPS are necessary for the target design.

Part Context

This part belongs to the AD7989-1/AD7989-5 family of 18-bit PulSAR ADCs. These devices share identical architectural features but differ in maximum sampling rates, with the AD7989-1 limited to 100 kSPS and the AD7989-5 supporting 500 kSPS.

Replacement Considerations

The AD7989-5BRMZ is a pin-compatible alternative within the same family offering 500 kSPS throughput. Verify performance requirements to determine if the higher speed variant is suitable for the application.