AD7983BCPZ-RL7

Overview

The AD7983BCPZ-RL7 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 with a throughput of 1.33 MSPS and consumes 10.5 mW at full speed. The device features a pseudo-differential input range of 0 V to VREF (2.9 V to 5 V), an SNR of 92 dB, and INL of ±1.0 LSB maximum. It utilizes a versatile serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols, housed in a 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 ADCs on a single bus via the SDI input pin.
• Low power dissipation that scales linearly with throughput, enabling efficient operation in battery-powered applications.

Applications

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

Procurement Notes

Verify the specific ordering suffix RL7 corresponds to the reel packaging configuration required for your assembly line. Confirm the BC grade matches the specified temperature range and accuracy requirements. Ensure the LFCSP-10 footprint aligns with your PCB layout guidelines. Cross-reference the datasheet revision C specifications against your design constraints.

Selection Notes

Select this component when a 16-bit resolution and 1.33 MSPS sampling rate are required within a low-power constraint. The external reference requirement allows flexibility in setting the input voltage range up to 5 V. Consider the LFCSP package for space-constrained designs requiring a compact 3 mm x 3 mm footprint.

Part Context

The AD7983 belongs to the PulSAR ADC series, designed for high-performance, low-power data conversion tasks. It is pin-for-pin compatible with the 18-bit AD7982, facilitating upgrades or system scaling. The device integrates a track-and-hold circuit and a charge redistribution DAC, eliminating the need for an external clock source for the conversion process itself.

Replacement Considerations

The AD7982 is a pin-for-pin compatible alternative offering 18-bit resolution. For higher throughput requirements, consider the AD7985 which supports up to 2.5 MSPS. Verify that any substitute maintains the same LFCSP-10 package and logic voltage compatibility.