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1GHz active probe DIY

2022-06-26 08:12:00 【circuit in my brain】

First, let's take a look at the simulation diagram ：

The overall scheme is low-cost Fetprobe（ You can also use Opvprobe, The performance is similar ）, The main device is a high frequency double gate MOSFET.

The gain can be seen from the simulation diagram -18dB about ,-3dB The cut-off frequency of is greater than 1Ghz.

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https://yzsam.com/2022/02/202202170603182452.html

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