LMV225SD

RF Detectors Overview

The LMV225SD is a single-channel RF power detector amplifier manufactured by Texas Instruments. It operates within a frequency range of 450 MHz to 2 GHz and provides a logarithmic output voltage. The device features a dynamic range of 30 dB and includes logic low shutdown functionality. It supports supply voltages from 2.7 V to 5.5 V and functions across temperatures from -40 °C to +85 °C. The component is housed in a 6-pin WSON package measuring 2.5 x 2.2 x 0.8 mm.

RF Detectors Feature Summary

• Provides accurate temperature and supply compensated output voltage for CDMA applications
• Integrates single-channel RF detection with logic low shutdown capability
• Delivers logarithmic amplification over a wide dynamic range

RF Detectors Applications

• CDMA base station power monitoring
• WCDMA signal level detection
• RF power measurement in wireless communication modules

RF Detectors Procurement Notes

Verify the specific ordering suffix, such as NOPB, to ensure compliance with RoHS standards and lead-free manufacturing requirements. Confirm that the received component matches the exact package dimensions and pin configuration specified in the official datasheet. Cross-reference the manufacturer part number against the original equipment manufacturer's bill of materials to prevent substitution errors during assembly.

RF Detectors Selection Notes

Select this component when a single-channel logarithmic detector is required for frequencies up to 2 GHz. Ensure the application demands a dynamic range of approximately 30 dB and operates within the specified 2.7 V to 5.5 V supply range. Consider the compact WSON-6 footprint for space-constrained designs requiring integrated temperature compensation without external calibration components.

RF Detectors Part Context

The LMV225SD belongs to the LMV22x family of RF power detectors designed primarily for cellular infrastructure. This series includes dual-channel (LMV226) and quad-channel (LMV228) variants. The single-channel LMV225SD serves as the foundational unit for precise power monitoring in CDMA and WCDMA systems, offering a balance of performance and integration for base station applications.

RF Detectors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with LMV226 or LMV228 if channel count adjustments are necessary, but confirm electrical parameter equivalence before implementation.