Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Function | TruPwr RMS power detector |
| Frequency range | Low frequency to 2.5 GHz |
| Input range | Up to 30 dB at 2.5 GHz |
| Maximum input | 700 mV rms / 10 dBm in 50 Ω headline condition |
| Output conversion gain | 7.5 V/V rms |
| Supply voltage | 2.7 V to 5.5 V |
| Low-power operation | 3.3 mW at 3 V |
| Package | 8-lead MSOP |
Product Overview
The AD8361ARMZ-REEL7 is an 8-lead MSOP true-rms RF power detector designed for measurement from low frequency to 2.5 GHz. Unlike a logarithmic envelope detector, the AD8361 responds to rms signal power and is therefore intended to measure simple or high-crest-factor modulated waveforms without depending strongly on waveform shape.
The detector provides a linear dc output with 7.5 V/V rms conversion gain. Analog Devices specifies operation from 2.7 V to 5.5 V and highlights low power consumption of 3.3 mW from a 3 V supply, making the part suitable where accurate average-power measurement is needed under a small dc-power budget.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Detector type | TruPwr true-rms |
| Frequency range | LF to 2.5 GHz |
| Input dynamic range | Up to 30 dB at 2.5 GHz |
| Maximum input headline | 700 mV rms / 10 dBm referenced to 50 Ω |
| Output response | Linear in rms voltage |
| Conversion gain | 7.5 V/V rms |
| Supply voltage | 2.7 V to 5.5 V |
| Power at 3 V | 3.3 mW |
| Power-down current | <1 µA |
| Operating temperature | -40°C to +85°C |
| Package | 8-lead MSOP |
| Product status | Production |
Design Considerations
True-rms response is useful when modulation crest factor varies, but averaging bandwidth still affects what the output represents. Use the external filter capacitor to set the response time so the detector averages the intended modulation while still tracking real power changes.
The maximum input and linearity range are condition-dependent. For signals near the upper limit, preserve the exact frequency, supply and error conditions from the datasheet rather than treating 10 dBm as a universal full-accuracy limit.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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