ADA4939-2YCPZ-RL

Overview

The ADA4939-2YCPZ-RL is a dual-channel, low-noise, ultralow distortion, high-speed differential amplifier fabricated using Analog Devices' proprietary silicon-germanium (SiGe) complementary bipolar process. Designed for driving high-performance analog-to-digital converters (ADCs) with resolutions up to 16 bits from DC to 100 MHz, it features an internal common-mode feedback loop that allows user-adjustable output common-mode voltage matching. The device operates on single supplies between 3.0 V and 5.25 V, providing a −3 dB bandwidth of 1400 MHz at G = 2, a slew rate of 6800 V/µs at 5 V, and input voltage noise of 2.3 nV/√Hz. It is housed in a 4 mm × 4 mm, 24-lead LFCSP package.

Feature Summary

• Ultralow harmonic distortion performance suitable for high-resolution data acquisition
• Internal common-mode feedback loop enables adjustable output common-mode voltage and exceptional output balance
• High-speed operation with wide bandwidth and fast overdrive recovery
• Single-supply operation with external gain configuration stability

Applications

• ADC drivers
• Single-ended-to-differential converters
• IF and baseband gain blocks
• Differential buffers
• Line drivers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging and reel specifications. Ensure the component matches the required temperature range and supply voltage constraints for your application. Cross-reference the pinout and exposed pad connection requirements during PCB layout to maintain signal integrity and thermal performance.

Selection Notes

Select this component when driving ADCs requiring high dynamic range and low distortion. Consider the dual-channel architecture for applications needing two independent differential outputs. Evaluate the power consumption and thermal dissipation characteristics relative to the ambient operating conditions and PCB copper area available for heat spreading.

Part Context

This part belongs to the ADA4939 family of differential amplifiers, which includes the single-channel ADA4939-1 variant. Both devices share similar electrical characteristics but differ in channel count and package type. The family is designed for high-performance signal chain applications where maintaining signal fidelity across a wide frequency range is critical.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.