2 layers64.7 × 47.9 mm
4 layers25.6 × 38.6 mm
Diff probe amplifier
devEmbedded/differential_probe32Modular differential probe (DEDP-100)
- Size
- 25.6 × 38.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 83
- Nets
- 49
- Pads
- 305
- Tracks, vias
- 783, 140
- Pours
- 17
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 4 Aug 2021
- Updated
- 10 Sep 2021
Overview
Diff probe amplifier is an open-source printed circuit board by devEmbedded, from the devEmbedded/differential_probe repository on GitHub. It is a 4-layer board of 25.6 × 38.6 mm with 83 parts on 49 nets, routed with 783 tracks and 140 vias.
It is built around the R1283K001C-TR, MMZ1608B601C and BLM18KG102SN1, with the PESD5V0X1BT and SBR1A20T5 among its other parts. Its parts include 23 capacitors, 22 resistors, 9 inductors, 7 connectors and 6 diodes. It belongs with the sensors and measurement and audio and music boards of this library.
Main components
5
R1283K001C-TR
DFN(PLP)2730-12-20V~20V -40℃~+85℃ 2 2.5V~5.5V 250uA 300kHz~1.4MHz Adjustable Boost Boost、Inverting Built-in Yes DFN(PLP)2730-12 DC-DC Converters ROHSNisshinbo Micro Devices Inc.DC-DC Converters
MMZ1608B601C
0603SMT Chip Bead for Signal LineTDKUncategorised
BLM18KG102SN1
0603-55℃~+125℃ 1 1A 1kΩ@100MHz 200mΩ ±25% 0603 Ferrite Beads ROHSMurataFerrite Beads
PESD5V0X1BT
SOT-23-55℃~+150℃@(Ta) 0.9pF、2pF 1nA 2 5.8V 5V Bidirectional ESD IEC 61000-4-2 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)SBR1A20T5
SC-79-55℃~+150℃ 1 Independent 10A 15ns 19pF@20V,1MHz 1A 200uA@20V 20V 520mV@1A SC-79 Super Barrier Rectifiers (SBR) ROHSDiodes IncorporatedSuper Barrier Rectifiers (SBR)
README
README.mdModular differential probe (DEDP-100)
This repository contains the design files of a 100 MHz differential probe for use with oscilloscopes. The design is modular and consists of a base amplifier unit with exchangeable probe tip accessories. The accessory can be chosen to fit the desired voltage range and connection type.
Currently this project is still in development. While the prototype revisions work well, they are still being redesigned for improvements.
Files
License
The design files in this repository are available under CC-BY-SA 3.0 license.
Commercial reproduction of this design is allowed, but the devEmbedded trademark must not be used to advertise third-party products. Attribution must be included in documentation or marketing materials.
Suggested format for attribution:
This device is based on an open source design: https://github.com/devEmbedded/differential_probe
Parts
83| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 10µF | Capacitor_SMD:C_0603_1608Metric | C2, C3, C6, C7, C8, C9, C12, C13, C26 |
| 6 | 100nF | Capacitor_SMD:C_0603_1608Metric | C20, C21, C22, C23, C24, C25 |
| 4 | 110 | Resistor_SMD:R_0603_1608Metric | R11, R18, R19, R23 |
| 4 | 220 | Resistor_SMD:R_0603_1608Metric | R14, R15, R20, R21 |
| 4 | 6pF | Capacitor_SMD:C_0603_1608Metric | C1, C11, C18, C19 |
| 4 | MMZ1608B601 | Inductor_SMD:L_0603_1608Metric | L5, L6, L7, L8 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R6, R7 |
| 3 | 49.9 | Resistor_SMD:R_0603_1608Metric | R9, R10, R22 |
| 3 | 5.1k | Resistor_SMD:R_0603_1608Metric | R2, R3, R8 |
| 3 | BLM18KG102 | Inductor_SMD:L_0603_1608Metric | L1, L2, L9 |
| 3 | OPA659 | Package_SON:Texas_S-PVSON-N8_ThermalVias | U2, U3, U4 |
| 3 | PESD5V0X1B | Package_TO_SOT_SMD:SOT-23 | D4, D5, D6 |
| 2 | 24 | Resistor_SMD:R_0603_1608Metric | R16, R17 |
| 2 | 25k | Potentiometer_SMD:Potentiometer_Bourns_3314J_Vertical | RV1, RV2 |
| 2 | 4.5-20pF | oscilloscope-probes:C_Trimmer_Knowles_JZ_JR | C16, C17 |
| 2 | 4.7µH | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L3, L4 |
| 2 | 487k | Resistor_SMD:R_0603_1608Metric | R12, R13 |
| 2 | 68pF | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | HOLE_1.8mm | oscilloscope-probes:HOLE_1.8mm | H2, H2 |
| 2 | SBR1A20 | Diode_SMD:D_SOD-523 | D1, D2 |
| 1 | +5V | TestPoint:TestPoint_Pad_D2.5mm | TP1 |
| 1 | +6V | TestPoint:TestPoint_Pad_D2.5mm | TP2 |
| 1 | -6V | TestPoint:TestPoint_Pad_D2.5mm | TP3 |
| 1 | 2.2mm | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad | H1 |
| 1 | 22k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | Conn_Triaxial | oscilloscope-probes:TRIAX_SOLDER | J1 |
| 1 | GAIN | oscilloscope-probes:JS202011JCQN | SW1 |
| 1 | GND | TestPoint:TestPoint_Pad_D2.5mm | TP4 |
| 1 | IN+ | TestPoint:TestPoint_Pad_D2.5mm | TP7 |
| 1 | IN+ | oscilloscope-probes:MMCX_Molex_73415-0961_Horizontal_1.6mm-PCB | J7 |
| 1 | IN- | oscilloscope-probes:MMCX_Molex_73415-0961_Horizontal_1.6mm-PCB | J8 |
| 1 | IN- | TestPoint:TestPoint_Pad_D2.5mm | TP8 |
| 1 | R1283K001C | Package_DFN_QFN:DFN-12-1EP_3x4mm_P0.5mm_EP1.7x3.3mm | U1 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | Spring+G | oscilloscope-probes:TE_2306454_RIGHT | J4 |
| 1 | Spring+S | oscilloscope-probes:TE_2306454_RIGHT | J3 |
| 1 | Spring-G | oscilloscope-probes:TE_2306454_LEFT | J5 |
| 1 | Spring-S | oscilloscope-probes:TE_2306454_LEFT | J6 |
Questions
How big is the Diff probe amplifier PCB?
It measures 25.6 × 38.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Diff probe amplifier use?
83 parts, built around the R1283K001C-TR, MMZ1608B601C, BLM18KG102SN1 and PESD5V0X1BT. 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 Diff probe amplifier KiCad files?
From the devEmbedded/differential_probe repository on GitHub, at the commit this page was made from: the board is diff_probe_amplifier/diff_probe_amplifier.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Diff probe amplifier design in my own project?
Its repository states no licence, so its author keeps all rights: ask devEmbedded before reusing the design.
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