AD7988-5CCPZ-RL7

Overview

The AD7988-5CCPZ-RL7 is a 16-bit successive approximation analog-to-digital converter (ADC) from the AD7988-x series, 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 typical SNR of 91.5 dB, dynamic range of 92 dB, and total harmonic distortion of −114 dB at 5 V reference. Power consumption is 3.5 mW at full throughput. It utilizes a versatile serial interface compatible with SPI, Microwire, and DSP protocols, housed in a 10-lead LFCSP package.

Feature Summary

• Zero latency architecture with no pipeline delay for immediate data availability after conversion completion.
• Versatile serial interface supporting daisy-chaining multiple ADCs via the SDI input on a single bus.
• Independent digital logic interface powered by VIO, allowing compatibility with 1.8 V, 2.5 V, 3 V, or 5 V logic levels.

Applications

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

Procurement Notes

Verify the specific C-grade suffix against the manufacturer's current ordering guide to confirm timing parameters, as grades may differ. Ensure the reel packaging designation matches the required manufacturing quantity. Cross-reference the exact part number with official distributor catalogs to validate current production status and regional availability constraints.

Selection Notes

Select this component when a 500 kSPS sampling rate is required alongside high-resolution 16-bit accuracy. The C-grade variant offers faster conversion times compared to B-grade options. Consider the LFCSP package for space-constrained designs requiring robust thermal performance. Verify that the system power budget accommodates the 3.5 mW total dissipation at maximum throughput.

Part Context

This part belongs to the AD7988 family of low-power PulSAR ADCs, which includes the AD7988-1 offering 100 kSPS throughput. Both variants share identical pinouts and architectural features but differ in speed specifications. The family is designed for battery-powered applications requiring precise signal conditioning without significant power overhead.

Replacement Considerations

The AD7988-5BCPZ-RL7 serves as a functional substitute within the same series, offering identical electrical characteristics but with different timing specifications defined by the B-grade classification. Designers must verify timing margins if substituting between grade suffixes.