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

3 years ago 6980
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

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.

Documents

Schematic for Bob Pease's High Impedance Active Scope Probe

PCB for Bob Pease's High Impedance Active Scope Probe

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Mounted
1 mmbfj309lt1 J1,J2 SOT23 2
2 Qmmbt3904lt1 Q1 SOT23 1
3 mmbt3906lt1 Q2 SOT23 1
4 51 R1 R0805 1
5 100 R2 TRIM_BOURNS_3223G 1
6 3.3k R3,R4 R0805 2
7 10Meg RDNF1,RDNF2,RDNF3 R0805 3
8 10n C1,C2 C0805 2
9 SIP3 CON2 HDR1X3 1
10 620 RDAMP1 R0805 1
11 SMA_90_R300.124.403 CON3 SMA_90_R300.124.403 1
12 SIP2 P1 HDR1X2 1

Attachments

None

Members / Participants(1)

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