AD9201ARSRL

Overview

The AD9201ARSRL is a dual-channel, 20 MSPS, 10-bit CMOS analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features two simultaneous sampling ADCs optimized for applications requiring close channel matching, such as I/Q demodulation in communications systems. The device integrates on-chip analog input buffers and a programmable voltage reference, eliminating the need for external components in most designs. Operating from a single supply of 2.7 V to 5.5 V, it consumes 215 mW at 3 V. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 57.8 dB and a Spurious-Free Dynamic Range (SFDR) of –73 dB. It utilizes a pipeline architecture with a 3-cycle latency and outputs data via a multiplexed digital bus.

Feature Summary

• Complete dual matching ADCs optimized for I/Q or diversity channel applications
• On-chip analog input buffers eliminate the need for external op amps
• Integrated compensated bandgap voltage reference programmable for 1 V or 2 V
• Multiplexed digital output bus saves board space and reduces pin count

Applications

• I/Q channels in wireless communication systems
• Spread-spectrum channel processing
• Narrowband signal acquisition
• Diversity reception architectures

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. Ensure that any assumed functional differences based solely on the suffix are validated by official datasheets before procurement. Confirm RoHS compliance status through the latest product release notes.

Selection Notes

Select this component when dual-channel synchronization and gain matching are critical requirements. The integrated buffers simplify design by removing external amplifiers. Consider the 20 MHz sampling rate and 10-bit resolution for bandwidth needs. Evaluate power consumption constraints relative to the 215 mW dissipation at 3 V operation.

Part Context

The AD9201 belongs to Analog Devices' family of high-speed CMOS ADCs. It is pin-compatible with the AD9281 dual 8-bit ADC and pairs with the AD9761 dual DAC. This compatibility facilitates system upgrades or architectural variations within the same footprint without redesigning the PCB layout.

Replacement Considerations

The AD9201 is pin-compatible with the AD9281. Verify if the reduced 8-bit resolution of the AD9281 meets the application's dynamic range requirements before substitution.