2 layers122 × 64 mm Current probe, the printed circuit board in 3D

Current probe

Experimental AD8331 amplifier board for measuring transient CPU power consumption

Size: 122 × 64 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 370
Nets: 42
Pads: 935
Tracks, vias: 1,225, 835
Pours: 35
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 7 Oct 2023
Updated: 21 Feb 2024

Overview

Current probe is an open-source printed circuit board by stgloorious, from the stgloorious/current-probe repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 122 × 64 mm with 370 parts on 42 nets, routed with 1,225 tracks and 835 vias.

It is built around the AD8331ARQZ, RO-3.309S and ADM7150ARDZ-5.0. Its parts include 165 capacitors, 65 resistors, 15 diodes, 15 connectors and 15 inductors. It belongs with the sensors and measurement boards of this library.

Main components

README

hardware/panel/README.md

Panel

This integrates 5 amplifier PCBs on a single panel.

panel

Parts

370

Qty	Value	Footprint	References
55	100n	Capacitor_SMD:C_0603_1608Metric	C12, C12, C12, C12, C12, C14, C14, C14, C14, C14, C16, C16, C16, C16, C16, C18 +39
40	1n	Capacitor_SMD:C_0603_1608Metric	C11, C11, C11, C11, C11, C13, C13, C13, C13, C13, C15, C15, C15, C15, C15, C17 +24
20	10u	Capacitor_SMD:C_0805_2012Metric	C21, C21, C21, C21, C21, C27, C27, C27, C27, C27, C28, C28, C28, C28, C28, C32 +4
20	2k2	Inductor_SMD:L_0603_1608Metric	FB4, FB4, FB4, FB4, FB4, FB5, FB5, FB5, FB5, FB5, FB6, FB6, FB6, FB6, FB6, FB7 +4
20	R	Resistor_SMD:R_0603_1608Metric	R2, R2, R2, R2, R2, R3, R3, R3, R3, R3, R8, R8, R8, R8, R8, R9 +4
15	1u	Capacitor_SMD:C_0805_2012Metric	C22, C22, C22, C22, C22, C31, C31, C31, C31, C31, C33, C33, C33, C33, C33
15	22	Inductor_SMD:L_0603_1608Metric	FB1, FB1, FB1, FB1, FB1, FB2, FB2, FB2, FB2, FB2, FB3, FB3, FB3, FB3, FB3
15	330	Resistor_SMD:R_0603_1608Metric	R4, R4, R4, R4, R4, R7, R7, R7, R7, R7, R13, R13, R13, R13, R13
15	TestPoint	TestPoint:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded	TP2, TP2, TP2, TP2, TP2, TP3, TP3, TP3, TP3, TP3, TP5, TP5, TP5, TP5, TP5
10	100p	Capacitor_SMD:C_0603_1608Metric	C3, C3, C3, C3, C3, C10, C10, C10, C10, C10
10	100u	Inductor_SMD:L_0805_2012Metric	L1, L1, L1, L1, L1, L2, L2, L2, L2, L2
10	237	Resistor_SMD:R_0603_1608Metric	R5, R5, R5, R5, R5, R6, R6, R6, R6, R6
10	SolderJumper_3_Bridged12	Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm	JP1, JP1, JP1, JP1, JP1, JP2, JP2, JP2, JP2, JP2
10	TestPoint	TestPoint:TestPoint_Keystone_5000-5004_Miniature	TP1, TP1, TP1, TP1, TP1, TP4, TP4, TP4, TP4, TP4
5	10n	Capacitor_SMD:C_0603_1608Metric	C23, C23, C23, C23, C23
5	12k	Resistor_SMD:R_0603_1608Metric	R10, R10, R10, R10, R10
5	300 mA	Fuse:Fuse_0805_2012Metric	F1, F1, F1, F1, F1
5	330n	Capacitor_SMD:C_0603_1608Metric	C25, C25, C25, C25, C25
5	3k	Potentiometer_THT:Potentiometer_Bourns_3296Y_Vertical	R11, R11, R11, R11, R11
5	47n	Capacitor_SMD:C_0603_1608Metric	C26, C26, C26, C26, C26
5	6u8	Inductor_SMD:L_0805_2012Metric	L3, L3, L3, L3, L3
5	AD8331ARQZ	current_probe:RQ_20_ADI-L	U1, U1, U1, U1, U1
5	ADM7150ARDZ-5.0	Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm	U2, U2, U2, U2, U2
5	ADTT1-6	RF_Mini-Circuits:Mini-Circuits_CD637_H5.23mm	TR1, TR1, TR1, TR1, TR1
5	CFB	Capacitor_SMD:C_0603_1608Metric	C1, C1, C1, C1, C1
5	CSH	Capacitor_SMD:C_0603_1608Metric	C2, C2, C2, C2, C2
5	Conn_01x02_Pin	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal	J2, J2, J2, J2, J2
5	Conn_01x05_Pin	Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical	J3, J3, J3, J3, J3
5	D_Schottky	Diode_SMD:D_SMA	D2, D2, D2, D2, D2
5	EZA-EG2N50AX	Diode_SMD:D_0603_1608Metric	D1, D1, D1, D1, D1
5	GREEN	LED_SMD:LED_0805_2012Metric	D3, D3, D3, D3, D3
5	RCLMP	Resistor_SMD:R_0603_1608Metric	R12, R12, R12, R12, R12
5	RFB	Resistor_SMD:R_0603_1608Metric	R1, R1, R1, R1, R1
5	RO-3.309S	Converter_DCDC:Converter_DCDC_Murata_MEE1SxxxxSC_THT	PS1, PS1, PS1, PS1, PS1
5	SMA	Connector_Coaxial:SMA_Amphenol_132289_EdgeMount	J1, J1, J1, J1, J1

Questions

How big is the Current probe PCB?

It measures 122 × 64 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Current probe use?

370 parts, built around the AD8331ARQZ, RO-3.309S and ADM7150ARDZ-5.0. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Current probe KiCad files?

From the stgloorious/current-probe repository on GitHub, at the commit this page was made from: the board is hardware/panel/current_probe.kicad_pcb and its schematic hardware/current_probe.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Current probe design in my own project?

Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

Sensors and measurement

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/stgloorious-current-probe-current-probe-2" title="Current probe in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/stgloorious-current-probe-current-probe-2.jpg" alt="Current probe" width="1200" height="900">

A picture that opens the board, for a README

[![Current probe](https://pcbkit.io/embed/boards/stgloorious-current-probe-current-probe-2.jpg?size=s)](https://pcbkit.io/boards/stgloorious-current-probe-current-probe-2)

Source

Repository: stgloorious/current-probe
Board file: hardware/panel/current_probe.kicad_pcb
Commit: 3e23814
Licence: CC-BY-SA-4.0

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