ADA4927-2YCPZ-R7

Overview

The ADA4927-2YCPZ-R7 is a dual-channel, ultralow distortion, current feedback differential amplifier designed for driving high-performance ADCs up to 16-bit resolution. It features a 2.3 GHz small-signal bandwidth and a 5000 V/µs slew rate. The device operates on supply voltages ranging from +5 V to ±5 V with a quiescent current of approximately 22.1 mA per amplifier. It includes an internal common-mode feedback loop for output balance and offers externally adjustable gain via four resistors.

Feature Summary

• Current feedback architecture provides wide bandwidth and low distortion at higher gains compared to voltage feedback amplifiers.
• Internal common-mode feedback loop ensures exceptional output balance and suppression of even-order distortion products.
• Adjustable output common-mode voltage allows easy matching to required ADC input levels.
• Fabricated using silicon-germanium complementary bipolar process for very low distortion and noise.

Applications

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

Procurement Notes

Verify the specific ordering suffix YCPZ-R7 corresponds to the 24-lead LFCSP package and reel packaging configuration. Confirm that the component meets RoHS compliance standards as indicated in the manufacturer's documentation. Ensure the operating temperature range requirements align with the specified -40°C to +105°C limits for your application environment.

Selection Notes

Select this component when driving high-resolution ADCs requiring ultralow harmonic distortion and high speed. The dual-channel configuration is suitable for applications needing matched gain and phase, such as I/Q demodulation. Consider the external feedback network requirements for setting closed-loop gain and stability. Evaluate power dissipation constraints given the quiescent current and thermal resistance characteristics.

Part Context

The ADA4927 series consists of single (ADA4927-1) and dual (ADA4927-2) channel differential amplifiers. The ADA4927-2 variant integrates two independent channels within a single package, optimizing board space for multi-channel signal processing systems. Both variants share similar electrical characteristics but differ in pin count and physical dimensions.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.

FAQ

How is the output common-mode voltage controlled?

The output common-mode voltage is controlled by an internal common-mode feedback loop that forces the output common-mode level to match the voltage applied to the VOCM input pin.

What is the typical input voltage noise specification?

The typical input voltage noise is 1.4 nV/√Hz at a frequency of 100 kHz with a gain of 28.