AD9201ARSZ

Overview

The AD9201ARSZ is a dual-channel, 20 MSPS, 10-bit CMOS analog-to-digital converter manufactured by Analog Devices Inc. It features a pipeline architecture with simultaneous sampling sample-and-hold amplifiers for both channels. The device integrates on-chip analog input buffers and a compensated bandgap voltage reference, eliminating the need for external op-amps in most applications. It operates from a single supply ranging from 2.7 V to 5.5 V, consuming 215 mW at 3 V. Key electrical parameters include a differential nonlinearity error of 0.4 LSB, a signal-to-noise ratio of 57.8 dB over nine effective bits, and a spurious-free dynamic range of –73 dB. The component is housed in a 28-lead SSOP package.

Feature Summary

• Complete dual matching ADCs optimized for close channel matching requirements
• 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 channel encoding in communications systems
• Diversity channel information processing
• Narrowband and spread-spectrum channel coverage

Procurement Notes

Verify the specific ordering suffix ARSZ against the manufacturer's current documentation to confirm the exact temperature range and package variant. Ensure that the procurement source provides valid RoHS compliance data as specified in the official datasheet. Cross-reference the part number with the authorized distributor list to guarantee authenticity and traceability before finalizing any acquisition.

Selection Notes

Select this component when dual-channel synchronization and tight gain/offset matching are critical for system performance. The integrated input buffers simplify the analog front-end design by removing the requirement for discrete operational amplifiers. Consider the 20 MHz sampling rate and 10-bit resolution against the available power budget, noting the low power dissipation characteristics suitable for portable or battery-operated applications.

Part Context

The AD9201 belongs to a family of high-speed CMOS analog-to-digital converters designed for precision data acquisition. It is pin-compatible with the dual 8-bit ADC AD9281, allowing for potential design upgrades without layout changes. The device complements the AD9761 dual DAC product, facilitating complete signal chain implementations within the same manufacturer ecosystem.

Replacement Considerations

The AD9201 is pin-compatible with the AD9281 dual 8-bit ADC. Designers may consider this alternative if lower resolution is acceptable for the application.