AD8310 Fast RF Power Detector LF - 440 MHZ

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AD8310 Fast RF Power Detector

(Factory Built & Tested PCB Module)

The PCB Module includes a  high-quality ENIG FR4 PCB (30 x 14 mm) that comes with all SMD components factory pre-soldered. 

RF capacitors are used for all the circuits.  A 52.3 Ohm resistor is used for R1.

One SMA female connector with nut and washer is also supplied. 

With Ultra-Low-Noise 5V Voltage Regulator.

Measure LF to 440 MHZ with more than 90 dB of dynamic range and with the speed of  a diode demodulator.

Based on the Analog Devices AD8310ARM chip, this module is a complete RF Power meter head for 50 ohm systems

working from very low frequencies to more than 440 MHZ.

The RF input SMA is terminated to a 52.3 - 1% Ohms resistor (R1) to match the AD8310 input resistance to 50 Ohms.

It draws under 12 mA at 12 VDC and has an on board 5V voltage regulator.

For low noise operation, a special ultra low-noise 5 V voltage regulator is used. The LP2985AIM5-5.0 is made by Texas Instruments and is optimized for RF circuits. This one powers the AD8310 chip. Its input can be connected to an external power supply of +5.25 min to 16V max via edge connector pin 4.

The AD8310 output voltage is routed to the output connector pin 1 for 24mV/dB measurements.

All of the scaling resistors as described in it's datasheet are in purpose  large (of 1206 SMD size), in order to facilitate hand soldering/de-soldering if any change is required..

The PCB dimensions are 30 x 14 mm and a special gold-plated band is provided on the edges to help soldering any shielding material (copper clad board, tin etc).