LMH9135IRRLR

Overview

The LMH9135IRRLR is a high-performance, single-channel RF gain block amplifier by Texas Instruments. It converts differential inputs to single-ended outputs within the 3.2 GHz to 4.2 GHz frequency range. Operating at 3.3 V with 120 mA supply current, it delivers 18 dB gain and a 3.8 dB noise figure. Key linearity metrics include an 18 dBm P1dB compression point and a 31.5 dBm OIP3. The device is housed in a 12-WQFN package and supports temperatures from -40°C to +105°C.

Feature Summary

• Supports differential input to single-ended output conversion for simplified circuit design
• Optimized for high linearity and low noise performance in transmit paths
• Operates across a wide industrial temperature range for robust reliability

Applications

• 5G active antenna systems (AAS)
• Point-to-point microwave radio links
• Wireless local loop infrastructure

Procurement Notes

Verify the specific suffix 'IRRLR' against official Texas Instruments documentation to confirm the reel packaging configuration and tape-and-reel specifications. Ensure the procurement channel provides valid RoHS compliance data and humidity sensitivity level information as indicated in the component datasheet.

Selection Notes

Select this component when a differential-to-single-ended interface is required for uplink or transmit stages. Evaluate the 18 dB gain and 3.8 dB noise figure against system link budget requirements. Confirm that the 12-WQFN footprint fits the PCB layout constraints and that the thermal dissipation capabilities meet the application's power density needs.

Part Context

This part belongs to the LMH91xx series of high-speed RF amplifiers designed for wireless infrastructure. It complements other devices in the family by providing specific frequency coverage for emerging cellular standards. The series focuses on integrating gain, linearity, and impedance matching into a compact surface-mount package.

Replacement Considerations

Consult official substitution guides for direct pin-compatible alternatives within the LMH91xx family. Verify that any substitute matches the 3.2–4.2 GHz frequency range and WQFN-12 package dimensions.