EasyEDA User andyfierman
andyfierman
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Bob Pease's High Impedance Active Scope Probe (PCB Design)

3 years ago  
Analog Projects
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This project contains the passive schematic and PCB design for the circuit as simulated in Bob Pease's High Impedance Active Scope Probe simulations.
This project contains the passive schematic and PCB design for a simple DIY low frequency high input impedance active scope probe adapter.

It could also be used with a DVM.

Schematic for Bob Pease's High Impedance Active Scope Probe

Schematic for Bob Pease's High Impedance Active Scope Probe

PCB for Bob Pease's High Impedance Active Scope Probe

PCB for Bob Pease's High Impedance Active Scope Probe

BOM

IDValueQty.PackageComponents
1mmbfj309lt12SOT23J1,J2
2Qmmbt3904lt11SOT23Q1
3mmbt3906lt11SOT23Q2
4511R0805R1
51001TRIM_BOURNS_3223GR2
63.3k2R0805R3,R4
710Meg3R0805RDNF1,RDNF2,RDNF3
810n2C0805C1,C2
9SIP31HDR1X3CON2
106201R0805RDAMP1
11SMA_90_R300.124.4031SMA_90_R300.124.403CON3
12SIP21HDR1X2P1

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