Kuwongolera ndi njira yolumikizira ma waya anayi kwa wolamulira yemwe amakhala mpaka 24MHz ndipo imagwirizana ndi SPI, QSPI, Microwire ndi ma protocol ena.
Njira iliyonse iliyonse yomwe ili mbali ina ya chipyo imatha kukhala mapulogalamu-monga:
- Kulowetsa kwa Voltage (0-10V, 200kΩ kusankha)
- Zowonjezera zamakono (zotsutsana zakunja)
- Voteji linanena bungwe (0-11V)
- Zotsatira zamakono (0-25mA, HART yovomerezeka yophedwa)
- Kuyika kwa digito (njira yotsitsa, kusinthana kwakunja, mwachitsanzo)
- Kuyesa kwa kutentha kwa sensor (RTD)
Zolowetsa zimathandizidwa ndi 16-bit imodzi, Σ-∆ ADC yomwe imagawidwa pakati pa njira zinayi - ndikusankha 50 Hz ndi 60 Hz - ndipo njira iliyonse imalandira monotonic 13bit DAC. Zofufuzira zakunja zitha kugwiritsidwa ntchito m'malo moyerekeza zamkati.
Pomwe chip, chotchedwa AD74113R, chimapangidwa kuti chigwiritsidwe ntchito pama module a screw, ma IO amatetezedwa ndikulolera ± 40 Vdc.
Pampu yolipiritsa pa-chip imapanga njanji yoyipa kuti zotuluka zitha kufikira ku 0V.
Mawonekedwe olowera pamagetsi amatha kuyeza ma thermocouples posankha ma ± 104.16mV olowetsera kudzera mu kaundula wamkati.
Palinso kachipangizo kamene kamakhala kotentha ± 5 ° C.
Chojambulira m'mphepete mwazomwe chimapezeka mu njira yolowera digito.
Kuti igwire ntchito, IC imafunikira njanji zamagetsi zitatu: analogue (14 - 28.8V), digito yamkati (2.7 - 5.5V) ndi mawonekedwe olandila (1.7 - 5.5V). Omaliza awiriwa atha kugawana nawo, ndipo mawonekedwe ake amakhala otsika mpaka 1.8V kulola kulumikizana kwa SPI ku 1.8V. Ma LDO angapo amkati amapezeka kuti athandizire pakupereka magetsi. Njanji yoyipa yopangidwa mkati sikupezeka pamitundumitundu yakunja.
Ntchito idutsa -40 ° C mpaka + 105 ° C, ndipo phukusili ndi 64-lead LFCSP
Chip chotchipa chotchipa, chopanda HART, ndi AD74412R.
EV-AD74413RSDZ ndi bolodi lowunikira la AD74413R ndipo limatha kuwongoleredwa kuchokera pa PC USB ndi Analog's SDP-S system showplatform platform (SDP). Kupereka kwa 14 mpaka 28.8V kumafunika.
Maulalo a tsamba lazogulitsa
AD74113R
AD74412R
Kufotokozera: EV-AD74413RSDZ