AD7980BRMZRL7

Overview

The AD7980BRMZRL7 is a 16-bit, 1 MSPS PulSAR analog-to-digital converter (ADC) housed in a 10-lead MSOP package. It operates from a single 2.5 V supply with a separate digital interface supply ranging from 1.8 V to 5 V. The device features a pseudo-differential input range of 0 V to VREF and supports SPI, QSPI, Microwire, and DSP serial interfaces. Key performance metrics include an INL of ±0.6 LSB typical, dynamic range of 92 dB, SNR of 91.5 dB, and THD of −114 dB at 1 MSPS throughput. Power consumption is 7 mW total at full speed.

Feature Summary

• Zero-latency architecture providing immediate data availability after conversion completion
• Versatile serial interface supporting daisy-chaining multiple ADCs on a single bus
• Low power dissipation scaling linearly with throughput for battery-operated applications
• Wide operating temperature range specified from -40°C to +125°C

Applications

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

Procurement Notes

Verify the specific ordering suffix RL7 corresponds to reel packaging when sourcing components. Confirm that the B grade designation meets the required linearity specifications for the target application. Ensure compatibility with the host system's voltage levels for both VDD and VIO supplies before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high accuracy with low power consumption. The pseudo-differential input simplifies grounding requirements compared to fully differential architectures. Consider the external reference voltage range when designing the signal chain to maximize dynamic range performance across the specified temperature range.

Part Context

This part belongs to Analog Devices' PulSAR family of SAR ADCs. It shares architectural similarities with the AD7983 but offers distinct throughput and resolution characteristics. The BRMZRL7 variant specifically denotes the MSOP package with tape and reel delivery, differentiating it from tube-packaged equivalents like the AD7980BRMZ.

Replacement Considerations

The AD7983 serves as a pin-compatible alternative within the same series. Verify interface timing requirements and power consumption differences when substituting. Ensure the replacement part meets the specific INL and SNR targets defined for the original design.