View source for Mesa Electronics THCAD High Isolation Analog-to-Digital Card

[[File:Mesa_THCAD_Stock_Photo.jpg|thumb|Mesa THCAD]]

[[File:Mesa_THCAD-300_No_Connectors_Top.jpg|thumb|THCAD-300 top (no connectors)]]

[[File:Mesa_THCAD-300_Bottom.jpg|thumb|THCAD-300 bottom]]

== Overview ==

THCAD stands for "Torch Height Control Analog to Digital", as the main application of a high isolation analog to digital converter is for CNC plasma cutters with arc voltage feedback for torch height control.

== Bill of Materials ==

{| class="wikitable"
! Name
! Marking
! Part
|-
| U1,U2,U10
| [Nexperia Logo] 74HC4040D CXT38501 TXD2040D
| [https://www.digikey.com/en/products/detail/nexperia-usa-inc/74HC4040D-653/1230383 Nexperia 74HC4040D]
|-
| U3,U5
| NXP 74HC04D CKT58301 TXD1610E
| [https://www.digikey.com/en/products/detail/nexperia-usa-inc/74HC04D-Q100-118/3678831 Nexperia 74HC04D]
|-
| U4
| ISL32174 EIBZ W2001AAAB
| [https://www.digikey.com/en/products/detail/renesas-electronics-america-inc/ISL32174EIBZ/2000536 Renesas ISL32174EIBZ]
|-
| U6
| 5241ARZ #2013* 75420
| [https://www.digikey.com/en/products/detail/analog-devices-inc/ADUM5241ARZ-RL7/1551392 Analog Devices ADUM5241ARZ]
|-
| U7
| MV342I [TI logo] Q7M AP9JG4
| [https://www.digikey.com/en/products/detail/texas-instruments/LMV342ID/1510571 Texas Instruments LMV342ID]
|-
| U8
| [Analog Devices logo] V OK [MSOP-8]
| [https://www.digikey.com/en/products/detail/analog-devices-inc/AD7740KRMZ-REEL7/995685 Analog Devices AD7740KRMZ]
|-
| U9
| L0A
| [https://www.digikey.com/en/products/detail/texas-instruments/LM3480IM3X-3-3-NOPB/367043 Texas Instruments LM3480IM3X-3.3]
|-
| U11
| 431BV PEKW
| [https://www.digikey.com/en/products/detail/onsemi/NCV431BVDR2G/3198046 onsemi NCV431BVD]
|-
| U12
| 272C [TI logo] 8AM AHDL G4
| [https://www.digikey.com/en/products/detail/texas-instruments/TLC272CDR/276953 Texas Instruments TLC272CD]
|-
| CR3,CR4
| A7W 9n (or u6?)
| [https://www.digikey.com/en/products/detail/onsemi/SBAV99LT3G/3062600 onsemi SBAV99LT3G]
|-
| CR1
| [Diodes Incorporated logo] 504 1N4002 [DO-41]
| [https://www.digikey.com/en/products/detail/diodes-incorporated/1N4002G-T/128571 Diodes Incorporated 1N4002]
|}

== Online Resources ==

[http://www.mesanet.com/pdf/analog/thcadman.pdf THCAD Manual]

[http://store.mesanet.com/index.php?route=product/product&product_id=128 THCAD-300 | Mesa Web Store]

[http://store.mesanet.com/index.php?route=product/product&product_id=127 THCAD-10 | Mesa Web Store]

[http://store.mesanet.com/index.php?route=product/product&product_id=328 THCAD-5 | Mesa Web Store]

[https://forum.linuxcnc.org/plasma-laser/38728-converting-a-thcad-300-to-a-thcad-10 Converting a THCAD-300 to a THCAD-10? - LinuxCNC]

[https://cnc.prom.ua/p1053478343-preobrazovatel-napryazheniya-chastotu.html Преобразователь напряжения в частоту MESA THCAD-10: купить по лучшей цене от компании "CNCPROM" - 1053478343] (source for stock photo)