{"product_id":"allen-bradley-1790d-n4c0-analog-input-module","title":"Allen-Bradley - 1790D-N4C0 Analog Input Module","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1790D-N4C0 Analog Current Input Module Product Introduction\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Allen-Bradley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003e1790D-N4C0\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Channels:\u003c\/strong\u003e 4 single-ended, \u003cspan style=\"color: #e74c3c;\"\u003enon-isolated current inputs\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Range (Configurable):\u003c\/strong\u003e \u003cspan style=\"color: #e74c3c;\"\u003e4-20 mA (default)\u003c\/span\u003e or 0-20 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e High \u003cspan style=\"color: #e74c3c;\"\u003e12-bit unipolar\u003c\/span\u003e (1\/4096 full scale)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBit Resolution:\u003c\/strong\u003e 3.90 µA\/bit (4-20 mA) or 4.88 µA\/bit (0-20 mA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Accuracy:\u003c\/strong\u003e Excellent ±\u003cspan style=\"color: #e74c3c;\"\u003e0.2% of full scale\u003c\/span\u003e at 0 to 55°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConversion Time:\u003c\/strong\u003e 10 milliseconds per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e 249 Ω standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Power Supply:\u003c\/strong\u003e 21.6 to 26.4V DC (24V DC +10% nominal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Photocoupler isolation (I\/O to logic) tested at 1250V AC rms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Convenient 37-pin D-shell connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicators:\u003c\/strong\u003e Four red\/green LEDs for per-channel status\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the full model number for this analog input module?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This is the \u003cstrong\u003eAllen-Bradley 1790D-N4C0\u003c\/strong\u003e four-channel current input module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What current signals can the 1790D-N4C0 module read?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It can read both standard 4-20 mA signals and 0-20 mA signals, configurable in software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How accurate is the measurement from this module?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It provides high accuracy of ±0.2% of full scale across its specified temperature range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the resolution of the analog-to-digital conversion?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It uses a 12-bit converter, providing fine resolution of 1 part in 4096.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How many sensor inputs can I connect to one module?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The \u003cstrong\u003e1790D-N4C0\u003c\/strong\u003e provides four independent analog input channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can I add more I\/O to this system?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, as a base module, it can accommodate up to two additional discrete expansion modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is calibration needed before use?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No, the module comes factory-calibrated and requires no field calibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor further specifications or to discuss your application, contact our technical sales team.\u003c\/p\u003e\n\u003cp\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca rel=\"noopener\" href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e\u003cbr\u003ePhone: \u003ca rel=\"noopener\" href=\"https:\/\/wa.me\/8615392429628\" target=\"_blank\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":47279538929922,"sku":"1790D-N4C0","price":214.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/1790D-N4C0.jpg?v=1770628516","url":"https:\/\/www.nex-auto.com\/products\/allen-bradley-1790d-n4c0-analog-input-module","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}