Ctvt pmod

whatnick·ctvt-pmod

Ctvt pmod PCB layout, top view — open source board by whatnick

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…

Ctvt pmod, from the project README
From the project README

Main components on the Ctvt pmod

Ctvt pmod bill of materials (BOM)

28 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ADS131M02IPWR
Texas Instruments
U1
1
TSW-106-08-G-D-RA
Tiny Tapeout PMOD
Samtec
J1
1
SJ-3523-SMT-TR
Same Sky
J2
1
PJ-002BH-SMT-TR
Same Sky
J3
1
613012243121
Wurth Elektronik
J4
1
GSMF3.3CA
SMF3.3CA
Good-Ark Semiconductor
D1
1
SMBJ18CA
Littelfuse
D2
1
MPZ1608S601ATA00
600R@100MHz
TDK
FB1
2
GRM1885C1H103JA01D
10nF C0G
Murata
C1, C2
2
C0603C105K4RACTU
1uF
KEMET
C3, C5
2
C0603C104K5RACTU
100nF
KEMET
C4, C6
1
C0603C224K4RACTU
220nF
KEMET
C7
2
RN73C2A6R49BTDF
6.49R 0.1%
TE Connectivity Holsworthy
R1, R2
4
RG1608P-102-B-T5
1k 0.1%
Susumu
R3, R4, R9, R10
2
ERA-6AEB104V
100k 0.1%
Panasonic Industry
R5, R6
2
RT0805BRD076K49L
6.49k 0.1%
Yageo
R7, R8
2
RMCF0603FT10K0
10k
Stackpole Electronics
R11, R12
1
RC0603FR-0733RL
33R
Yageo
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.

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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