LT5514EFE#PBF

Overview

The LT5514EFE#PBF is a programmable gain amplifier (PGA) designed for ultralow distortion intermediate frequency (IF) amplification and analog-to-digital converter (ADC) driving. It features digital control over gain settings, operating within a bandwidth extending from low frequencies up to 850 MHz. The device provides a maximum gain of 33 dB with a minimum of 10.5 dB, achieving an output IP3 of 47 dBm at a test frequency of 100 MHz. It operates on a supply voltage ranging from 4.75 V to 5.25 V, drawing 148 mA of current. The component is housed in a 20-TSSOP package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Ultralow distortion performance suitable for precision IF signal processing
• Digitally controlled variable gain capability for flexible system configuration
• Integrated ADC driver functionality simplifying front-end design

Applications

• Intermediate frequency amplification in communication systems
• Driving high-speed analog-to-digital converters
• Software-defined radio front-ends

Procurement Notes

Verify the specific suffix #PBF confirms lead-free RoHS compliance and tube packaging when sourcing. Confirm the manufacturer is Analog Devices Inc., formerly Linear Technology. Ensure the 20-TSSOP package matches your PCB footprint requirements. Check regional availability as distribution may vary by location. Validate that the 4.75V to 5.25V supply range aligns with your power design.

Selection Notes

Select this component when ultralow distortion is critical for maintaining signal integrity in IF stages. The digital gain control allows for precise adjustment without external resistors. Consider the 850 MHz bandwidth limit for higher frequency applications. The integrated ADC driver reduces component count compared to discrete solutions. Evaluate the 148 mA current consumption against your thermal and power budget constraints.

Part Context

This part belongs to the LT5514 series of programmable gain amplifiers. It is manufactured by Analog Devices Inc. under the RF Amplifier product category. The device is specifically engineered for wireless and RF integrated circuit applications requiring high linearity and digital control.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.