ADA4861-3YRZ

Overview

The ADA4861-3YRZ is a low-cost, high-speed, triple current feedback operational amplifier manufactured by Analog Devices Inc. It operates within an extended temperature range of -40°C to +105°C and utilizes a 14-lead SOIC_N package. The device supports supply voltages from 5 V to 12 V, consuming 6 mA per amplifier in active mode. Key performance metrics include a 730 MHz bandwidth, 625 V/µs slew rate, and 13 ns settling time. It features independent power-down pins that reduce quiescent current to 0.3 mA per channel.

Feature Summary

• Triple-channel architecture with independent power-down control for each amplifier
• High-speed current feedback topology ensuring wide bandwidth and fast transient response
• Low voltage offset and high output drive capability suitable for demanding signal processing
• Wide operating supply range supporting both single and dual power configurations

Applications

• Consumer video signal processing
• Professional video applications
• Broadband video transmission
• Analog-to-digital converter buffers
• Active filter circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact packaging format and quantity. Ensure the component meets RoHS compliance standards as indicated by the 'Z' designation. Cross-reference the part number with the latest datasheet revision to validate all electrical specifications before integration into production designs.

Selection Notes

Select this component when multiple high-speed amplification channels are required within a compact footprint. The current feedback architecture offers superior slew rates compared to voltage feedback alternatives at similar price points. Consider the independent power-down feature for systems requiring dynamic power management across multiple signal paths.

Part Context

This device belongs to the ADA4861 family of high-speed amplifiers designed for cost-sensitive yet performance-critical applications. The YRZ variant specifically denotes the lead-free version housed in a standard narrow-body small outline package. It serves as a versatile solution for multi-channel signal conditioning where speed and channel count are primary design constraints.

Replacement Considerations

ADA4861-3YRZ-RL7

FAQ

How does the power-down function operate?

Each amplifier has an independent power-down pin. When the voltage on this pin exceeds the negative supply by more than 1 V, the amplifier enters a low-power state, reducing the quiescent current significantly.

What is the recommended feedback resistor value?

For a gain of +2, the recommended feedback resistor (RF) is 301 Ω. Using values lower than recommended may cause instability or peaking in the frequency response.