Taolo ke leha e le sehokelo sa dijithale se nang le terata tse nne ho molaoli ea amohelang batho ho fihlela 24MHz ebile e tsamaisana le SPI, QSPI, Microwire le li-protocol tse ling.
E 'ngoe le e' ngoe ea liteishene tse 'ne ka lehlakoreng le leng la chip e ka ba li-software tse hlophisoang joalo ka:
- Tlatsetso ea Voltage (0-10V, 200kΩ khetho ea mojaro)
- Keno ea hajoale (resistor e kantle)
- Tlhahiso ea Voltage (0-11V)
- Tlhahiso ea hajoale (0-25mA, HART e lumellanang le khetho e bolailoeng)
- Kenyelletso ea dijithale (khetho ea de-bounce, switch switch kantle, ka mohlala)
- Tekanyo ea Resistance mocheso sensor (RTD)
Lisebelisoa li tšehetsoa ke 16-bit e le 'ngoe, Σ-∆ ADC e arolelanoang lipakeng tsa liteishene tse' ne - ka khetho ea 50 Hz le 60 Hz - mme kanale e 'ngoe le e' ngoe e fumana monotonic 13bit DAC ea eona. Mekhahlelo ea litšupiso ea kantle e ka sebelisoa ho fapana le litšupiso tsa kahare.
Ha chip, e bitsoang AD74113R, e reretsoe ho sebelisoa ho li-module tsa screw terminal, mela ea IO e sirelelitsoe ebile e mamella ± 40 Vdc.
Pompo ea on-chip e laolang seporo e etsa seporo se fosahetseng e le hore lihlahisoa li ka fetela ho 0V.
Mokhoa oa ho kenya motlakase o ka lekanya li-thermocouple ka ho khetha ± 104.16mV input range ka ngoliso ea kahare.
Hape ho na le mocheso oa mocheso o nepahetseng oa ± 5 ° C.
K'haontara ea bohale ea ho kenya e fumaneha ka mokhoa oa ho kenya oa dijithale.
Ho sebetsa, IC e hloka liporo tsa motlakase tse tharo: analogue (14 - 28.8V), dijithale tsa kahare (2.7 - 5.5V) le seboka se amohelang batho (1.7 - 5.5V). Ba babeli ba morao-rao ba ka arolelana phepelo, 'me sebopeho sa moamoheli se ka ba tlase ho 1.8V ho lumella likhokahanyo tsa SPI ho 1.8V. Ho na le li-LDO tse fapaneng tsa kahare ho thusa ka phepelo ea motlakase. Seporo se hlahisitsoeng kahare ha se fumanehe bakeng sa mejaro e kantle.
Ts'ebetso e ka nqane ho -40 ° C ho + 105 ° C, 'me sephutheloana ke LFCSP ea lead-64
Mofuta o theko e tlase o sa sebetseng oa chip ntle le HART ke AD74412R.
EV-AD74413RSDZ ke boto ea tlhahlobo bakeng sa AD74413R mme e ka laoloa ho tsoa ho PC USB le Analog's SDP-S sistimi ea pontšo ea sistimi (SDP). Phepelo ea 14 ho isa ho 28.8V ea hlokahala.
Lihokela tsa leqephe la lihlahisoa
AD74113R
AD74412R
EA-AD74413RSDZ