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RF Power Detector

Industry's Smallest Power-Detection Circuit

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

Technical Docs

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Key Features

  • -25dBm to 0dBm Power Detection Range
  • ±0.5dB Detection Error Due to Temperature
  • +2.7V to +5V Single-Supply Operation
  • Space-Saving 4-Bump, 1mm² UCSP™ Package
  • On-Chip 50Ω Termination and DC-Blocking Capacitor

Applications/Uses

  • Dual-Band WCDMA Handsets
  • High-Speed Downlink Packet Access (HSDPA)
  • High-Speed Uplink Packet Access (HSUPA)

Description

The MAX2209 is a wideband (800MHz to 2GHz) RF power detector. It takes an RF signal from the directional coupler at the input, and outputs a DC voltage proportional to the RF peak voltage. The change in output voltage versus temperature is very repeatable from part to part and enables a lookup table based on nominal behavior, minimizing the effective detection error to less than ±0.5dB relative to room temperature.

The MAX2209 comes in a space-saving 2 x 2, 0.5mm pitch wafer-level package (WLP) and requires only two external components.

Simplified Block Diagram

MAX2209: Pin Configuration/Functional Diagram/Typical Operating Circuit MAX2209: Pin Configuration/Functional Diagram/Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .