Ctvt pmod
whatnick·ctvt-pmod
About the Ctvt pmod PCB
Ctvt pmod is an open source PCB design by whatnick, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 30 × 70 mm, with 28 components from 18 distinct parts.
Other key parts include the ADS131M02IPWR. By type, the board carries 13 resistors, 7 capacitors, 4 connectors, 2 diodes, 1 IC and 1 inductor.
It belongs with the test & measurement designs in this gallery.
From the project
CT and VT analog acquisition PMOD for Tiny Tapeout energy-monitor testing
CTVT PMOD is a compact, open-hardware analog front end for phase-coherent current and voltage sampling. It uses a TI ADS131M02 dual 24-bit delta-sigma ADC and is intended for energy-monitoring DSP experiments, including Tiny Tapeout ASIC projects.
The routed KiCad 10 design is 30 mm x 70 mm with 3 mm corner radii and two 2.2 mm non-plated M2 mounting holes at the PMOD end. The PMOD connectors are centered together on one short edge; the CT and AC/AC transformer inputs face away from them at the opposite edge so adjacent PMODs remain usable. All routed signals use 0.25 mm traces with 0.20 mm…

Main components on the Ctvt pmod
Ctvt pmod bill of materials (BOM)
28 components, 18 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADS131M02IPWR Texas Instruments | TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | TSW-106-08-G-D-RA Tiny Tapeout PMOD Samtec | PinHeader_2x06_P2.54mm_Horizontal | J1 |
| 1 | SJ-3523-SMT-TR Same Sky | Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J2 |
| 1 | PJ-002BH-SMT-TR Same Sky | DC_BARREL_JACK_SMD_2MM | J3 |
| 1 | 613012243121 Wurth Elektronik | PinSocket_2x06_P2.54mm_PMODHost1A | J4 |
| 1 | GSMF3.3CA SMF3.3CA Good-Ark Semiconductor | D_SOD-123F | D1 |
| 1 | SMBJ18CA Littelfuse | D_SMB | D2 |
| 1 | MPZ1608S601ATA00 600R@100MHz TDK | L_0603_1608Metric | FB1 |
| 2 | GRM1885C1H103JA01D 10nF C0G Murata | C_0603_1608Metric | C1, C2 |
| 2 | C0603C105K4RACTU 1uF KEMET | C_0603_1608Metric | C3, C5 |
| 2 | C0603C104K5RACTU 100nF KEMET | C_0603_1608Metric | C4, C6 |
| 1 | C0603C224K4RACTU 220nF KEMET | C_0603_1608Metric | C7 |
| 2 | RN73C2A6R49BTDF 6.49R 0.1% TE Connectivity Holsworthy | R_0805_2012Metric | R1, R2 |
| 4 | RG1608P-102-B-T5 1k 0.1% Susumu | R_0603_1608Metric | R3, R4, R9, R10 |
| 2 | ERA-6AEB104V 100k 0.1% Panasonic Industry | R_0805_2012Metric | R5, R6 |
| 2 | RT0805BRD076K49L 6.49k 0.1% Yageo | R_0805_2012Metric | R7, R8 |
| 2 | RMCF0603FT10K0 10k Stackpole Electronics | R_0603_1608Metric | R11, R12 |
| 1 | RC0603FR-0733RL 33R Yageo | R_0603_1608Metric | R13 |
Ctvt pmod design files
The KiCad project lives in the whatnick/ctvt-pmod repository on GitHub; these links point at the commit this page was built from.
- Layoutctvt-pmod.kicad_pcb
- Schematicctvt-pmod.kicad_sch
- BOMdocs/ctvt-pmod-sourced-bom.csv
Ctvt pmod: common questions
How big is the Ctvt pmod PCB?
The Ctvt pmod measures 30 × 70 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ctvt pmod?
28 components, from 18 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 Ctvt pmod design files?
From the whatnick/ctvt-pmod 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 Ctvt pmod design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which whatnick chose for the repository.
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