LT5514EFE#TRPBF

Overview

The LT5514EFE#TRPBF is a programmable gain amplifier (PGA) designed for ultralow distortion intermediate frequency (IF) amplification and analog-to-digital converter (ADC) driving. It features digitally controlled variable gain with a bandwidth extending from low frequencies to 850 MHz. Key electrical parameters include a gain of 33 dB, a noise figure of 7.3 dB, and an output third-order intercept point (OIP3) of 47 dBm at a test frequency of 100 MHz. The device operates on a supply voltage ranging from 4.75 V to 5.25 V, drawing 148 mA of current. It supports a maximum output power of 21 dBm and is housed in a 20-TSSOP-EP package.

Feature Summary

• Digitally controlled variable gain architecture for precise signal conditioning
• Ultralow distortion performance suitable for high-linearity applications
• Wide bandwidth capability extending up to 850 MHz
• Integrated ADC driver functionality for direct interface

Applications

• Intermediate frequency (IF) amplification in communication systems
• Direct driving of analog-to-digital converters (ADCs)
• Software-defined radio (SDR) front-end modules
• Test and measurement equipment requiring high linearity

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure that the ordering part number matches the required package type and reel quantity specifications exactly to avoid integration errors during assembly processes.

Selection Notes

Select this component when ultralow distortion and wide bandwidth are critical for IF signal processing. The digitally controlled gain allows for flexible system calibration without external analog control loops. Consider the 20-TSSOP-EP package for thermal management and PCB space constraints. Evaluate the 47 dBm OIP3 specification against system dynamic range requirements to ensure adequate linearity margins.

Part Context

This part belongs to the LT5514 series of programmable gain amplifiers manufactured by Analog Devices Inc. The series is characterized by its ability to provide stable gain control across a broad frequency range while maintaining signal integrity. The LT5514EFE variant specifically denotes the lead-free, halogen-free version compliant with environmental standards, packaged in a 20-pin TSSOP footprint optimized for surface-mount technology.

Replacement Considerations

LT5514EFE#PBF is the tube-packaged equivalent of this component.