MAX2205
RF Power Detectors in UCSP
The Industry's Smallest Power Detection Circuit
Part Details
- Space-Saving 2 x 2 UCSP Occupies Only 1mm2
- Internal Temperature Compensation Gives ±0.3dB Detection Accuracy
- No External Filter or Op Amp Required
- Power-Detection Range
- 40dB (MAX2206)
- 25dB (MAX2205/MAX2207/2208)
The MAX2205–MAX2208 wideband (800MHz to 2GHz) power detectors are ideal for GSM/EDGE (MAX2206), TDMA (MAX2207), and CDMA (MAX2205/MAX2208) applications. The MAX2206/MAX2207/MAX2208 take an RF signal from a directional coupler at the input, and output a highly repeatable voltage. The output voltage increases monotonically with increasing input power. The output is compensated for temperature and process shifts, reducing the worst-case variation to less than ±1dB at full power and ±2.5dB at the lowest power.
The MAX2206 features 40dB dynamic range, making it ideally suited to GSM/EDGE applications. The MAX2207 offers reduced current consumption for TDMA applications. The MAX2205/MAX2208 each have an integrated filter to allow for average power detection of CDMA signals over a 25dB dynamic range. The MAX2206/MAX2207/MAX2208 offer internal 50Ω termination for interfacing with a directional coupler. The MAX2205 has a high-impedance input to provide a low-loss resistive tap in CDMA applications. All devices allow the user to control the averaging time constant externally.
The MAX2205–MAX2208 come in a space-saving 2 x 2, 0.5mm-pitch UCSP™ and require only three external components.
Applications
- Dual-Band CDMA/TDMA Handsets
- Dual-Band GSM/EDGE Handsets
- PA Modules
- WCDMA Handsets
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 3
This is the most up-to-date revision of the Data Sheet.
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