AD9057BRSZ-RL40

Overview

The AD9057BRSZ-RL40 is an 8-bit monolithic analog-to-digital converter (ADC) from Analog Devices, operating at a maximum sampling rate of 40 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 (VD) and supports digital logic interfaces at either 3 V or 5 V (VDD). Key electrical specifications include a typical power dissipation of 200 mW, a signal-to-noise ratio (SNR) of 46.5 dB at 10.3 MHz input frequency, and a differential nonlinearity (DNL) of ±2 LSB. It 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.

Applications

• Digital communications systems, specifically QAM demodulators
• RGB and YC/Composite video processing and digitization
• Medical imaging equipment
• Digital instrumentation

Procurement Notes

Verify the specific performance grade suffix in the part number to confirm the sampling rate specification. Ensure the ordering documentation matches the required SSOP-20 package type. Confirm that the industrial temperature range aligns with the target application environment before finalizing procurement.

Selection Notes

Select this component for applications requiring low-cost, low-power 8-bit conversion with moderate speed. Consider the AD9059 if dual-channel digitization is necessary. Evaluate the 120 MHz analog bandwidth against the Nyquist criteria for the highest expected input frequency to ensure adequate dynamic performance.

Part Context

This component belongs to the AD9057 family of 8-bit ADCs, which offers three performance grades differentiated by sampling rates: 40 MSPS, 60 MSPS, and 80 MSPS. All variants share the same core architecture, pinout, and package style, allowing for design flexibility across different throughput requirements within the same product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Analog Devices resources for current replacement recommendations.