LMH2121TMX/NOPB

RF Detectors Overview

The LMH2121TMX/NOPB is a fast-responding linear power detector and RF envelope detector manufactured by Texas Instruments. It operates within a frequency range of 100 MHz to 3 GHz, providing a dynamic range of 40 dB with an input signal span from -28 dBm to 12 dBm. The device delivers a DC output voltage that is linearly proportional to the RF input signal amplitude. It functions on a single supply voltage ranging from 2.6 V to 3.3 V, drawing a typical supply current of 3.4 mA. The component is housed in a compact 4-WFBGA (DSBGA) package.

RF Detectors Feature Summary

• Provides accurate linear detection of RF envelope signals across a wide bandwidth
• Features fast response time suitable for high-speed modulation schemes
• Delivers a DC output voltage directly proportional to the logarithmic RF input power

RF Detectors Applications

• CDMA and GSM base station receiver front-ends
• EDGE and W-CDMA communication systems
• Automatic gain control (AGC) loop implementations
• RF power monitoring in wireless infrastructure

RF Detectors Procurement Notes

Verify the specific suffix 'TMX' confirms the tape-and-reel packaging format required for automated surface-mount assembly processes. Ensure the 'NOPB' designation indicates lead-free construction compliant with RoHS standards. Confirm the operating temperature range aligns with industrial requirements before finalizing procurement orders.

RF Detectors Selection Notes

Select this component when a linear power detector with a 3 GHz upper frequency limit is required. Consider the 40 dB dynamic range capability for applications demanding precise power measurement over varying signal levels. Evaluate the 3.4 mA supply current against system power budget constraints relative to alternative low-power detector options.

RF Detectors Part Context

This part belongs to the LMH series of high-speed analog components designed for radio frequency applications. It serves as the packaged semiconductor die variant of the LMH2121 family, distinct from evaluation boards like the LMH2121TMEVAL/NOPB. The device integrates the core detection functionality into a standard surface-mount form factor for direct circuit integration.

RF Detectors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts if considering alternatives, as pin configurations and thermal characteristics may differ between manufacturers.