ADA4927-1YCPZ-RL

Overview

The ADA4927-1YCPZ-RL is a single-channel, ultralow distortion, current feedback differential amplifier designed for driving high-performance ADCs with resolutions up to 16 bits from DC to 100 MHz. It features an adjustable output common-mode voltage and operates over a supply range of +5 V to ±5 V. The device utilizes a silicon-germanium complementary bipolar process to achieve low noise and exceptional dynamic performance. Key electrical specifications include a small-signal bandwidth of 2300 MHz, a slew rate of 5000 V/µs, and an input voltage noise of 1.4 nV/√Hz. It is housed in a Pb-free, 3 mm × 3 mm 16-lead LFCSP package.

Feature Summary

• Current feedback architecture provides loop gain nearly independent of closed-loop gain, maintaining wide bandwidth and low distortion at higher gains.
• 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 common-mode levels.
• Differential gain configurations are easily realized using an external feedback network comprising four resistors.

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-RL against the manufacturer's official documentation to confirm the reel packaging configuration and lead frame material. Ensure the component matches the Rev. B datasheet specifications for the 16-lead LFCSP package. Cross-reference the part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when driving high-resolution ADCs requiring ultralow harmonic distortion and high-speed signal processing. The current feedback design is advantageous for applications demanding consistent bandwidth across varying gain settings. Consider the 16-lead LFCSP package for compact PCB layouts. Verify that the operating temperature range of −40°C to +105°C aligns with the system environment requirements.

Part Context

The ADA4927 series includes the ADA4927-1 (single channel) and ADA4927-2 (dual channel). Both variants share identical core performance characteristics but differ in pin count and package size. The ADA4927-1 is optimized for space-constrained designs requiring a single differential amplifier channel. The series was introduced around October 2008 and remains a standard solution for precision data acquisition systems.

Replacement Considerations

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

FAQ

How does the ADA4927-1 handle output common-mode voltage?

The device features an internal common-mode feedback loop that forces the output common-mode voltage to match the voltage applied to the VOCM input pin, allowing for easy adjustment to match ADC requirements.

What is the impact of the current feedback architecture on bandwidth?

The current feedback architecture ensures that the loop gain is nearly independent of the closed-loop gain, allowing the device to maintain wide bandwidth and low distortion even at higher gain settings compared to voltage feedback amplifiers.