AD9057BRSZ-80

Overview

The AD9057BRSZ-80 is an 8-bit monolithic analog-to-digital converter (ADC) from Analog Devices, operating at a maximum sampling rate of 80 MSPS. It features a full-power analog bandwidth of 120 MHz and utilizes a pipeline architecture with on-chip track-and-hold circuitry. The device requires a single 5 V analog supply and supports digital logic interfaces at either 3 V or 5 V. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 46 dB at 10.3 MHz input frequency and a power dissipation of 220 mW under standard test conditions. It is housed in a 20-lead SSOP package and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an internal 2.5 V voltage reference and track-and-hold amplifier to minimize external component requirements.
• Supports flexible digital interface compatibility with both 3 V and 5 V logic families via the isolated VDD supply pin.
• Includes a dedicated power-down mode that reduces total power consumption to less than 10 mW while maintaining high impedance outputs.

Applications

• Digital Communications (QAM Demodulators)
• RGB and YC/Composite Video Processing
• Digital Data Storage Read Channels

Procurement Notes

Verify the specific grade suffix corresponding to the required sampling speed during procurement. Confirm the package type matches the design footprint. Check for end-of-life status as some variants may be discontinued. Ensure ESD precautions are observed due to device sensitivity. Validate supply voltage requirements against the final system configuration.

Selection Notes

Select this model when an 80 MSPS conversion rate is required. Consider the AD9057BRSZ-60 or AD9057BRSZ-40 if lower speeds suffice. Evaluate the AD9059BRSZ for dual-channel applications. Assess thermal management needs given the 220 mW dissipation. Verify that the 1 V p-p input range aligns with the source signal amplitude.

Part Context

This component belongs to the AD9057 family of low-cost, low-power ADCs. It shares the same core architecture and pinout with the 40 MSPS and 60 MSPS variants. The family is designed for applications requiring small size and ease of use. It serves as a single-channel counterpart to the dual-channel AD9059.

Replacement Considerations

Public confirmed substitute part numbers: AD9057BRSZ-60, AD9057BRSZ-40.