The ADL5500 is a mean-responding power detector for use in high frequency receiver and transmitter signal chains from 100 MHz to 6 GHz. It is easy to apply, requiring only a single external capacitor and a low input impedance voltage reference. It features ±0.1 dB temperature stability and up to 30 dB input dynamic range, making it suitable for a variety of applications.
The ADL5500 TruPwr™ Detector provides true‑rms power measurement from 100 MHz to 6 GHz. It operates from a single 2.7 V to 5.5 V supply, features a 50 Ω nominal input impedance, and delivers a linear DC output voltage with a conversion gain of 6.4 V/V rms at 900 MHz.
The device offers excellent temperature stability (±0.1 dB over –40 °C to +85 °C), low power consumption (≈3 mW at 3 V), and a dynamic range up to 30 dB at 3.9 GHz, making it suitable for complex modulation waveforms such as CDMA2000, W‑CDMA, and QPSK/QAM‑OFDM.
| Frequency range | 100 MHz to 6 GHz |
|---|---|
| Input impedance | 50 Ω (nominal) |
| Conversion gain at 900 MHz | 6.4 V/V rms |
| Supply voltage range | 2.7 V to 5.5 V (single‑supply) |
| Power consumption | ≈3 mW at 3 V supply |
| Operating temperature range | -40 °C to +85 °C |
| Dynamic range (3.9 GHz) | Up to 30 dB |
It operates from a single supply of 2.7 V to 5.5 V.
The nominal input impedance is 50 Ω.
The conversion gain is 6.4 V/V rms at 900 MHz.
It operates from –40 °C up to +85 °C.