AD9057BRS-RL40

Overview

The AD9057BRS-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 includes an internal 2.5 V reference and track-and-hold circuit. The device requires a single 5 V analog supply (VD) and a digital supply (VDD) ranging from 3 V to 5 V. Typical power dissipation is 192 mW at 25°C with a 3 V digital supply. Key dynamic performance metrics include a Signal-to-Noise Ratio (SNR) of 43 dB at 10.3 MHz input frequency and 45.5 dB at 76 MHz. Differential Nonlinearity (DNL) and Integral Nonlinearity (INL) are typically 1.9 LSB across the industrial temperature range (-40°C to +85°C).

Feature Summary

• Integrates an on-chip 2.5 V voltage reference and track-and-hold amplifier to minimize external component requirements.
• Supports flexible logic interfacing with both 3 V and 5 V digital supplies for direct connection to various microcontrollers and FPGAs.
• Includes a dedicated power-down mode that reduces total power consumption to less than 10 mW while maintaining high impedance digital outputs.

Applications

• Digital Communications (QAM Demodulators)
• RGB and YC/Composite Video Processing
• Medical Imaging

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel specifications. Ensure compatibility with the required industrial temperature range and supply voltages before integration. Cross-reference the datasheet revision history for any updates to electrical characteristics or pin configurations.

Selection Notes

Select this component when an 8-bit resolution and 40 MSPS sampling rate are sufficient for the application. Consider the 120 MHz analog bandwidth for direct IF sampling applications. Evaluate the power dissipation requirements relative to the thermal constraints of the SSOP-20 package. Verify that the single-ended input architecture aligns with the system signal path design.

Part Context

The AD9057 series comprises three performance grades: 40 MSPS, 60 MSPS, and 80 MSPS. The AD9057BRS-RL40 represents the 40 MSPS grade within this family. All variants share the same 20-lead SSOP package and core architecture, differing primarily in timing specifications and dynamic performance limits at higher frequencies.

Replacement Considerations

The AD9057BRS-60 and AD9057BRS-80 are compatible upgrades offering higher sampling rates. For dual-channel applications, the AD9059 provides two ADC cores in a 28-lead SSOP package. No direct cross-brand replacements are documented in the official datasheet.