ADA4960-1ACPZ-R2

Overview

The ADA4960-1ACPZ-R2 is a single-channel, high-performance differential amplifier optimized for RF and IF applications. It operates on a single 5 V supply with a typical quiescent current of 60 mA. The device features a -3 dB bandwidth of 5 GHz at 6 dB gain, a slew rate up to 8700 V/µs, and fast settling time of 1 ns to 1%. It provides single-resistor programmable gain from 0 dB to 18 dB while maintaining a constant 10 kΩ differential input resistance. Packaged in a compact 16-lead LFCSP, it supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Buffered inputs isolate the gain-setting resistor from signal paths, ensuring constant differential input impedance across all gain settings.
• Nominal 150 Ω differential output impedance simplifies matching requirements for downstream components.
• Integrated enable pin allows power-down mode operation with low standby current consumption.
• Adjustable output common-mode voltage via external VOCM pin enables DC level translation.

Applications

• Differential ADC drivers for giga-sample analog-to-digital converters
• GBPS line drivers with pre-emphasis
• High-speed data acquisition systems

Procurement Notes

Verify the specific suffix R2 against the manufacturer's ordering guide to confirm reel packaging specifications. Ensure the component matches the 16-lead LFCSP package outline dimensions. Confirm that the device meets the required RoHS compliance standards for your assembly process. Cross-reference the datasheet revision A specifications with your design requirements.

Selection Notes

Select this component when driving high-speed ADCs requiring low distortion and wide bandwidth. Consider the fixed 10 kΩ input impedance for source matching needs. Evaluate the 5 V single-supply constraint against system power budgets. Verify that the thermal dissipation capabilities within the LFCSP package suit the ambient operating conditions.

Part Context

This part belongs to the ADA4960 family of ultra-low noise, fully differential amplifiers designed by Analog Devices. It utilizes a high-speed SiGe process to achieve superior linearity and speed. The series targets applications demanding precise signal conditioning in RF and IF front ends.

Replacement Considerations

Consult the official Analog Devices ordering guide for verified substitute part numbers. Do not assume functional equivalence with other differential amplifiers without verifying pinout and electrical specifications.

FAQ

How is the gain of the ADA4960-1 adjusted?

The gain is set using a single external resistor (RG) connected between the IIP and IIN pins, allowing programmable gain from 0 dB to 18 dB.

What is the function of the PD pin?

The PD (Power Down) pin controls the device state; grounding it disables the part, while connecting it to VCC enables normal operation.

Can the ADA4960-1 accept single-ended inputs?

Yes, the device can be configured for single-ended-to-differential conversion while maintaining similar harmonic distortion performance as differential configurations.