AD9059BRSZ

Overview

The AD9059BRSZ is a dual 8-bit monolithic analog-to-digital converter optimized for low cost and small size. It features a 60 MSPS encode rate capability with a typical full-power analog bandwidth of 120 MHz. The device integrates an on-chip 2.5 V reference and dual track-and-hold circuits, requiring only a single 5 V supply and an encode clock. It operates with a 1 V p-p analog input range centered at 2.5 V. Digital outputs support 3 V or 5 V logic interfaces. Power consumption is typically 400 mW, reducing to less than 12 mW in power-down mode. The component is housed in a 28-lead SSOP package.

Feature Summary

• Dual independent ADC channels with simultaneous sampling controlled by a single encode clock
• Integrated internal voltage reference and track-and-hold circuits eliminate external driver requirements
• Flexible digital interface compatible with both 3 V and 5 V logic families
• Low power operation with a dedicated power-down mode for extended idle periods

Applications

• Digital communications including QAM demodulators
• RGB and YC/Composite video processing digitizers
• Medical imaging systems
• Digital data storage read channels
• Direct IF sampling receiver architectures

Procurement Notes

Verify the specific ordering suffix against official Analog Devices documentation to confirm package type and temperature range. Ensure that any requested variants match the exact pinout and electrical specifications defined in the current datasheet revision. Confirm RoHS compliance status through authorized distribution channels prior to final procurement decisions.

Selection Notes

Select this component when dual-channel synchronization is required within a compact footprint. The integrated reference simplifies board layout compared to discrete solutions. Consider the AD9057 if only a single channel is needed. Evaluate the 120 MHz analog bandwidth against the Nyquist frequency of the target signal to ensure adequate dynamic performance at the desired operating frequencies.

Part Context

The AD9059 utilizes a MagAmp gray code conversion architecture combined with flash technology. This design enables high-speed 8-bit accuracy while maintaining low power dissipation. The device is fabricated on an advanced BiCMOS process. It serves as the dual-channel counterpart to the single-channel AD9057, sharing similar core performance characteristics but offering two linked ADCs in one package.

Replacement Considerations

The AD9057 is a single-channel variant based on the same ADC core. It offers identical performance metrics but occupies a 20-lead SSOP package instead of the 28-lead configuration.