AD7983BCPZ-RL

Overview

The AD7983BCPZ-RL is a 16-bit, 1.33 MSPS PulSAR analog-to-digital converter (ADC) housed in a 10-lead LFCSP package. It operates from a single 2.5 V supply with a logic interface supporting 1.8 V to 5 V levels. The device features a pseudo-differential input range of 0 V to VREF, where VREF ranges from 2.9 V to 5.1 V. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 92 dB and Total Harmonic Distortion (THD) of -115 dB at 1 kHz input frequency. Power consumption is 10.5 mW at full throughput and drops to 80 μW at 10 kSPS. Integral Nonlinearity (INL) is ±1.0 LSB maximum, and Differential Nonlinearity (DNL) is ±0.9 LSB maximum.

Feature Summary

• Zero latency architecture with no pipeline delay for immediate data availability after conversion completion.
• Versatile serial interface compatible with SPI, QSPI, Microwire, and DSP standards, supporting daisy-chaining capabilities.
• Low power dissipation that scales linearly with throughput, enabling efficient operation in battery-powered applications.
• Single-supply operation with separate digital I/O supply allowing compatibility with various logic families.

Applications

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

Procurement Notes

Verify the specific suffix RL indicates reel packaging when sourcing components. Confirm the BC grade corresponds to the specified temperature range and accuracy parameters. Ensure the LFCSP-10 package variant matches the design footprint requirements. Cross-reference the manufacturer's ordering guide for current availability status and lead time constraints before finalizing procurement plans.

Selection Notes

Select this component for applications requiring high resolution and moderate speed with low power constraints. The external reference requirement allows flexibility in setting the input voltage range up to 5 V. Consider the thermal resistance characteristics of the LFCSP package for PCB layout optimization. Verify that the host microcontroller supports the required serial interface modes and clock speeds for optimal throughput.

Part Context

The AD7983 belongs to Analog Devices' PulSAR ADC family, designed for precision data acquisition tasks. It shares pin compatibility with other devices in the series, such as the 18-bit AD7982, facilitating design upgrades. The LFCSP package offers a compact solution for space-constrained boards while maintaining thermal performance suitable for industrial environments.

Replacement Considerations

The AD7983BRMZ-RL7 serves as a pin-compatible alternative in the MSOP-10 package. Both devices share identical electrical specifications and functionality, differing primarily in the physical package outline. Designers should verify board space availability and thermal management strategies when switching between LFCSP and MSOP variants.