RH5596S

RECOMMENDED FOR NEW DESIGNS

100MHz to 40GHz Linear-in-dB RMS Power Detector with 35dB Dynamic Range

Analog Devices RH5596S Product Info

10 February 2026 6

Features

Ultra Wide Matched Input Frequency Range: 100MHz to 40GHz
32 dB Linear Dynamic Range (< ±1dB Error)
29mV/dB Logarithmic Slope
±1dB Flat Response from 200MHz to 30GHz
Accurate RMS Power Measurement of High Crest Factors (Up to 12dB) Modulated Waveforms
Low Power Shutdown Mode
Low Supply Current: 30mA at 3.3V (Typical)

Commercial Space Features

Supports aerospace applications
Certificate of Conformance
Wafer diffusion lot traceability
Burn-in, life test, and deltas analysis
Radiation lot acceptance test (RLAT)
- Total ionizing dose (TID)
Radiation benchmark
- No single event latch-up (SEL) occurs at effective linear energy transfer (LET): ≤ 80 MeV-cm²/mg

Part details & applications

The RH5596S is a high accuracy RMS power detector that provides a very wide RF input bandwidth, from 100MHz up to 40GHz. This makes the device suitable for a wide range of RF and microwave applications, such as point-to-point microwave links, instrumentation and power control applications.

The DC output voltage of the detector is an accurate representation of the average signal power applied to the RF input. The response is linear-in-dB with 29mV/dB logarithmic slope over a 35dB dynamic range with typically better than ±1dB accuracy. The detector is particularly suited for measurement of waveforms with crest factor (CF) as high as 12dB, and waveforms that exhibit a significant variation of the crest factor during the measurement.

To achieve higher accuracy and lower output ripple, the averaging bandwidth can be externally adjusted by a capacitor connected between the FLTR and OUT pins.

The enable interface switches the device between active measurement mode and a low power shutdown mode.

Applications

RMS Power Measurement
Receive and Transmit Gain Control
RF PA Transmit Power Control

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