PCB/hantek-6022-pcb
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README.md

Hantek 6022BE AC mod

Simple pcb to add AC coupling to the Hantek 6022BE oscilloscope. Based on the widespread mod available here: https://github.com/OpenHantek/OpenHantek6022/blob/main/docs/HANTEK6022_AC_Modification.pdf

Compatible with the OpenHantek6022 project

Circuit

When AC_A is high C1 is short so the signal is DC coupled. When AC_A is low C1 is open so the signal is AC coupled.

schematic

PCB

Back layer can be avoided especially in case of pcb milling.

BOM

Reference Value Datasheet Footprint Qty
C1,C2 100n ~ Capacitor_SMD:C_0805_2012Metric 2
R1,R2,R3,R4 220 ~ Resistor_SMD:R_0805_2012Metric 4
U1,U2 TLP175A Datasheet Package_SO:MFSOP6-4_4.4x3.6mm_P1.27mm 2

Mounting

The pcb can be mounted on an unpopulated shield hole