AD7988-5BCPZ-RL

Overview

The AD7988-5BCPZ-RL is a 16-bit successive approximation analog-to-digital converter (ADC) from the PulSAR family, manufactured by Analog Devices Inc. It operates on a single 2.5 V supply and delivers a throughput of 500 kSPS. The device features a pseudo-differential input range of 0 V to VREF, with an external reference voltage between 2.4 V and 5.1 V. Key performance metrics include a signal-to-noise ratio of 91.5 dB at 5 V reference and a total power dissipation of 3.5 mW at full speed. It utilizes a versatile serial interface compatible with SPI, Microwire, and DSP protocols, housed in a compact 10-lead LFCSP package.

Feature Summary

• Zero-latency architecture providing immediate data availability after conversion completion without pipeline delay.
• Versatile serial interface supporting daisy-chaining multiple devices on a single bus via the SDI input pin.
• Independent digital logic interface powered by VIO, enabling compatibility with 1.8 V, 2.5 V, 3 V, or 5 V host systems.

Applications

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

Procurement Notes

Verify the specific suffix BCPZ-RL against the manufacturer's current ordering guide to confirm the package type and reel quantity. Ensure the component matches the required temperature grade for the intended operating environment. Cross-reference the datasheet revision history to validate that all electrical specifications align with the production batch requirements before finalizing procurement.

Selection Notes

Select this model when a high-speed 500 kSPS sampling rate is required alongside 16-bit resolution. It is suitable for designs needing low power consumption during active operation while maintaining precise linearity. Consider the LFCSP package for space-constrained layouts. Verify that the system can accommodate the external reference voltage requirements and the specific timing constraints of the serial interface.

Part Context

This component belongs to the AD7988-x series of 16-bit PulSAR ADCs, which also includes the slower AD7988-1 variant. The series is designed for applications requiring precision and low power in a small footprint. The AD7988-5 specifically targets higher throughput needs compared to its 100 kSPS counterpart, offering enhanced dynamic performance within the same architectural framework.

Replacement Considerations

The AD7988-1 offers identical functionality but with a reduced throughput of 100 kSPS. For differential input requirements, consider the AD7915 or AD7916 models. Other members of the PulSAR family may provide alternative resolutions or speeds but require verification of pin compatibility and electrical characteristics.