ADM3485

3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers

GENERALDESCRIPTION TheADM3483/ADM3485/ADM3488/ADM3490/ADM3491arelowpower,differentiallinetransceiversdesignedtooperateusingasingle3.3Vpowersupply.Lowpowerconsumption,coupledwithashutdownmode,makestheADM3483/ADM3485/ADM3488/ADM3490/ADM3491idealforpower-sensitiveapp

ADM3485

3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers

FEATURES Operatewith3.3Vsupply Interoperablewith5Vlogic EIARS-422andRS-485compliantoverfullcommon-moderange Datarateoptions ADM3483/ADM3488:250kbps ADM3485/ADM3490/ADM3491:10Mbps Half-andfull-duplexoptions ReducedslewratesforlowEMI(ADM3483andADM3488) 2nA

ADM3485

3.3 V、低功耗、RS-485/RS-422收發(fā)器（半雙工、10 Mbps、驅(qū)動(dòng)器/接收器使能）; ? 采用3.3 V電源供電 \n\n? 與5 V邏輯兼容 \n\n? 在整個(gè)共模范圍內(nèi)符合EIA RS-485/RS-422標(biāo)準(zhǔn) \n\n? 數(shù)據(jù)速率選項(xiàng)：10 Mbps \n\n? 半雙工和全雙工選項(xiàng);

ADM3483/ADM3485/ADM3488/ADM3490/ADM3491均為低功耗、差分線路收發(fā)器，采用3.3 V單電源供電。這些器件具有低功耗特性和關(guān)斷模式，非常適合對(duì)功耗敏感的應(yīng)用。\n\n ADM3488/ADM3490/ADM3491適用于全雙工通信，而ADM3483/ADM3485則適用于半雙工通信。\n\n ADM3485/ADM3490/ADM3491的傳輸速率最高可達(dá)10 Mbps。接收器輸入阻抗為12 kΩ，允許多達(dá)32個(gè)收發(fā)器連接至總線。熱關(guān)斷電路可防止總線競(jìng)爭(zhēng)或輸出短路導(dǎo)致功耗過(guò)大。故障條件下，如果檢測(cè)到內(nèi)部驅(qū)動(dòng)器電路的溫度顯著升高，熱關(guān)斷電路將強(qiáng)制驅(qū)動(dòng)器輸出進(jìn)入高阻抗?fàn)顟B(tài)。如果輸入未連接（浮地），接收器所具有的故障安全特性將使輸出保持邏輯高狀態(tài)。這些器件的額定溫度范圍是商用和工業(yè)溫度范圍。ADM3483/ADM3485/ADM3488/ADM3490提供8引腳SOIC_N封裝，ADM3491則提供14引腳SOIC_N封裝。\n\n

ADM3485ARZ

3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers

GENERALDESCRIPTION TheADM3483/ADM3485/ADM3488/ADM3490/ADM3491arelowpower,differentiallinetransceiversdesignedtooperateusingasingle3.3Vpowersupply.Lowpowerconsumption,coupledwithashutdownmode,makestheADM3483/ADM3485/ADM3488/ADM3490/ADM3491idealforpower-sensitiveapp

ADM3485ARZ

3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers

FEATURES Operatewith3.3Vsupply Interoperablewith5Vlogic EIARS-422andRS-485compliantoverfullcommon-moderange Datarateoptions ADM3483/ADM3488:250kbps ADM3485/ADM3490/ADM3491:10Mbps Half-andfull-duplexoptions ReducedslewratesforlowEMI(ADM3483andADM3488) 2nA

ADM3485ARZ-REEL7

3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers

FEATURES Operatewith3.3Vsupply Interoperablewith5Vlogic EIARS-422andRS-485compliantoverfullcommon-moderange Datarateoptions ADM3483/ADM3488:250kbps ADM3485/ADM3490/ADM3491:10Mbps Half-andfull-duplexoptions ReducedslewratesforlowEMI(ADM3483andADM3488) 2nA

ADM3485E

ESD Protected, EMC Compliant, 3.3 V, 20 Mbps, EIA RS-485 Transceiver

GENERALDESCRIPTION TheADM3485Eisa3.3V,lowpowerdatatransceiverwith±15kVESDprotection,suitableforhalf-duplexcommunicationonmultipointbustransmissionlines.TheADM3485EisdesignedforbalanceddatatransmissionandcomplieswithTIA/EIAstandardsRS-485andRS-422.TheADM34

ADM3485E

±15 kV ESD-Protected, 3.3 V,12 Mbps, EIA RS-485/RS-422 Transceiver

FEATURESTIA/EIARS-485/RS-422compliant ±15kVESDprotectiononRS-485input/outputpins 12Mbpsdatarate Half-duplextransceiverUpto32nodesonthebusReceiveropen-circuit,fail-safedesignLowpowershutdowncurrent Outputshigh-ZwhendisabledorpoweredoffCommon-modeinputrange:

ADM3485E

3.3 V、±15 kV ESD保護(hù)、RS-485/RS-422收發(fā)器（半雙工、12Mbps、DE/RE）; ? 符合TIA/EIA RS-485/RS-422標(biāo)準(zhǔn) \n\n? RS-485輸入/輸出引腳提供±15 kV ESD保護(hù) \n\n? 數(shù)據(jù)速率：12 Mbps \n\n? 半雙工收發(fā)器 \n\n? 總線上最多32個(gè)節(jié)點(diǎn) \n\n? 接收器開路故障安全設(shè)計(jì);

ADM3485E是一款3.3 V低功耗數(shù)據(jù)收發(fā)器，提供±15 kV ESD保護(hù)，適用于多點(diǎn)總線傳輸線路的半雙工通信。該器件針對(duì)平衡數(shù)據(jù)傳輸而設(shè)計(jì)，符合TIA/EIA標(biāo)準(zhǔn)RS-485和RS-422。ADM3485E是半雙工收發(fā)器，驅(qū)動(dòng)器和接收器共用差分線路，但各自具有獨(dú)立的使能輸入。 \n\n 該器件具有12 kΩ接收器輸入阻抗，允許一條總線最多連接32個(gè)收發(fā)器。由于任一時(shí)間僅使能一個(gè)驅(qū)動(dòng)器，因此禁用或關(guān)斷驅(qū)動(dòng)器的輸出處于三態(tài)，避免總線過(guò)載。 \n\n 接收器具有故障安全特性，當(dāng)輸入浮地時(shí)，可確保輸出保持邏輯高狀態(tài)。熱關(guān)斷電路可防止總線競(jìng)爭(zhēng)或輸出短路導(dǎo)致功耗過(guò)大。 \n\n 該器件的額定溫度范圍為工業(yè)溫度范圍，提供8引腳窄體SOIC封裝。\n\n

ADM3485E_V01

±15 kV ESD-Protected, 3.3 V,12 Mbps, EIA RS-485/RS-422 Transceiver

FEATURESTIA/EIARS-485/RS-422compliant ±15kVESDprotectiononRS-485input/outputpins 12Mbpsdatarate Half-duplextransceiverUpto32nodesonthebusReceiveropen-circuit,fail-safedesignLowpowershutdowncurrent Outputshigh-ZwhendisabledorpoweredoffCommon-modeinputrange: