HardLabs

Differential-Probe

ugo-silato·Differential-Probe

Differential-Probe PCB layout, top view — open source board by ugo-silato

About the Differential-Probe PCB

Differential-Probe is an open source PCB design by ugo-silato, published on GitHub. It is a 2-layer board measuring 95 × 57 mm, with 93 components from 53 distinct parts.

Other key parts include the ADA4817-1ARDZ-R7, LMH6611MK/NOPB, MAX1555EZK+T and TPS65133DPDR. By type, the board carries 38 resistors, 33 capacitors, 5 ICs, 5 connectors, 5 diodes and 4 inductors.

It belongs with the power & battery designs in this gallery.

From the project

High-voltage differential probe PCB — KiCAD design

A high-voltage, active differential probe for floating measurements with selectable 10x/100x attenuation.

Input Stage (2 channels) - BNC connectors (J1, J2) - Compensated attenuator network (10x baseline, 100x with relay switching) - Protection: BAV99 diode clamps (D1, D2), SMAJ5.0A TVS (D3), 0.5A fuse (F1)

Buffer & Summing Stage - U1, U3: ADA4817-1ARDZ (1 GHz unity-gain stable op-amps, JFET input) - U2: LMH6611 (345 MHz single-supply buffer) — differential summing amplifier - Output on BNC (J3)

Main components on the Differential-Probe

ADA4817-1ARDZ-R7LMH6611MK/NOPBMAX1555EZK+TTPS65133DPDR

Differential-Probe bill of materials (BOM)

93 components, 53 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
ADA4817-1ARDZ-R7
U1, U3
1
LMH6611MK/NOPB
U2
1
MAX1555EZK+T
U4
1
TPS65133DPDR
U5
3
C709676
Conn_Coaxial
J1, J2, J3
1
USB_C_RECEPTACLE_POWERONLY_6P
USB_C_Receptacle_PowerOnly_6P
J4
1
CONN_01X02_PIN
Conn_01x02_Pin
J5
1
C151133
0.5A Fuse
F1
2
C111762
SW_Push_DPDT
SW1, SW2
2
BAV99
D1, D2
1
SMBJ5.0A
D3
1
LED Green
D4
1
LED Red
D5
4
4.7UH
4.7uH
L1, L2, L3, L4
1
100PF
100pF
C1
7
0402B104K100CT
0.1uF
C2, C10, C11, C12, C15, C17, C25
8
CC1206JRNPOBBN100
10pF
C3, C4, C5, C6, C18, C19, C20, C21
2
04025A471JAT2A
120pF
C7, C22
2
04025A471JAT2A
330pF
C8, C23
1
0.1UF
8-50pF
C9
Show 33 more
QtyPartRefs
1
470pF
C13
1
0.1UF
10 nF
C14
1
0.1UF
100pF
C16
1
10UF
8-50pF
C24
2
10UF
10uF
C26, C28
1
C22383496
0.1uF
C27
1
C24123
470uF 6.3V
C29
1
C22383496
10uF
C30
1
10UF
1.0uF 16V
C31
1
470uF 6.3V
C32
1
10uF
C33
2
C2828711
500 Ohms
R1, R2
2
RG1005P-151-B-T5
510 Ohms
R3, R32
8
RNCS1206BKE1M00
1M Ohms
R4, R5, R6, R7, R28, R29, R30, R31
1
C17513
1K Ohms
R8
1
RG1005P-151-B-T5
10M Ohms
R9
4
CPF0402B9K1E1
10K Ohms
R10, R11, R23, R25
2
RN73R1ETTP1502B25
15K Ohms
R12, R14
1
3386P-1-105LF
10K Ohms
R13
2
RT0402BRD0724R9L
91 Ohms
R15, R22
1
3386P-1-101LF
100 Ohms
R16
1
C81265
50 Ohms
R17
1
C5355206
1.5K Ohms
R18
1
C126687
120 Ohms
R19
3
RNCS1206BKE1M00
0 Ohm
R20, R33, R36
1
C242167
0 Ohm
R21
1
C110775
500 Ohms
R24
1
C110775
1K Ohms
R26
1
C17513
500 Ohms
R27
1
0 Ohm
R34
1
C780199
1K Ohms
R35
1
C17513
5.1 KOhms
R37
1
C242167
510 Ohms
R38

Differential-Probe design files

The KiCad project lives in the ugo-silato/Differential-Probe repository on GitHub; these links point at the commit this page was built from.

Differential-Probe: common questions

How big is the Differential-Probe PCB?

The Differential-Probe measures 95 × 57 mm, has 2 copper layers and is 2.63 mm thick.

How many components are on the Differential-Probe?

93 components, from 53 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Differential-Probe design files?

From the ugo-silato/Differential-Probe repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Differential-Probe design in my own project?

The repository has no license, so all rights stay with ugo-silato. Use it as a reference, and ask the author before reusing the design.

Similar boards