ADA4930-2YCPZ-R2

Overview

The ADA4930-2YCPZ-R2 is a dual-channel, ultralow noise differential amplifier designed for driving low voltage analog-to-digital converters. It operates on single supplies of 3.3 V or 5 V and features a small signal bandwidth of 1.35 GHz at unity gain with a slew rate of 3400 V/μs. The device provides extremely low harmonic distortion, achieving -104 dBc HD2 at 10 MHz under 5 V operation. It includes an adjustable output common-mode voltage and a power-down pin for system management.

Feature Summary

• Internal common-mode feedback loop ensures exceptional output balance and suppression of even-order harmonic distortion products.
• Capable of differential-to-differential or single-ended-to-differential conversion with externally adjustable gain via a simple four-resistor network.
• Adjustable output common-mode voltage allows precise matching to the input requirements of downstream ADCs.

Applications

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

Procurement Notes

Verify the specific package marking and date code against the manufacturer's current ordering guide to ensure authenticity. Confirm that the R2 suffix corresponds to the standard reel packaging format required for your assembly line equipment. Cross-reference the component lot traceability with the supplier's certificate of conformity prior to integration into production batches.

Selection Notes

Select this component when driving high-performance ADCs requiring resolutions up to 14 bits from DC to 70 MHz. The dual-channel architecture supports independent signal processing paths within a compact footprint. Ensure the application circuit utilizes the exposed paddle for thermal dissipation and ground connection as specified in the layout guidelines.

Part Context

This part belongs to the ADA4930 family of differential amplifiers fabricated using a proprietary silicon-germanium complementary bipolar process. The family includes the single-channel ADA4930-1 in a 16-lead LFCSP and the dual-channel ADA4930-2 in a 24-lead LFCSP. Both variants share identical electrical performance characteristics optimized for low noise and high speed.

Replacement Considerations

The ADA4930-1ACPZ-R7 serves as a single-channel equivalent within the same product family. For direct functional replacement of the dual-channel configuration, verify compatibility with the ADA4938 series, noting differences in supply voltage ranges and specific distortion metrics.

FAQ

How does the internal common-mode feedback loop affect harmonic distortion?

The internal common-mode feedback loop forces the output common-mode voltage to match the VOCM input, resulting in exceptional output balance and significant suppression of even-order harmonic distortion products without requiring tightly matched external components.

What is the maximum operating temperature range for this device?

The ADA4930-2 is specified to operate over a temperature range of −40°C to +105°C when powered by either 3.3 V or 5 V supply voltages.