{"product_id":"dual-channel-0v-to-76v-current-sense-amplifier","title":"Dual-Channel, 0V to 76V Current-Sense Amplifier","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMAX40201F\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis available in various gain configurations; this project employs the MAX40201F with a gain (G) of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e50V\/V\u003c\/strong\u003e. With a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0.05 Ohm\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eshunt resistor, the output is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2.5V for a 1A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecurrent flow (1A\/2.5V). Higher current measurements can be achieved by using a lower-value shunt resistor or by selecting a MAX40201 chip with a lower gain. The input common-mode range is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0V to 76V\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Sense Resistor vs. Gain Considerations:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeally, the maximum load current should generate the full-scale sense voltage across the current-sense resistor. The appropriate gain should be selected to achieve the desired maximum output voltage for the specific application. The relationship is defined by the following equation:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVout = I-Load * Rsense * Gain\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor example, with a 1A load current, a 0.05 Ohm shunt resistor, and a gain of 50V\/V, the output voltage is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVout = 1A * 0.05 Ohm * 50V\/V = 2.5V\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhere Rsense is the full-scale sense voltage (50mV for a gain of 50V\/V). This formula allows the user to select the appropriate sense resistor value based on the specific application requirements.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply 5V DC (Range 2.7V to 5.5V)\u003c\/li\u003e\n\u003cli\u003eCurrent Monitor Output 2.5V\/1Amp\u003c\/li\u003e\n\u003cli\u003eLoad Current Monitor Up to 2Amp\u003c\/li\u003e\n\u003cli\u003eCommon Mode Input Voltage Range 0 to 76V\u003c\/li\u003e\n\u003cli\u003e2 Channel Current Sense\u003c\/li\u003e\n\u003cli\u003ePrecision Output, Gain Error less than 0.1%\u003c\/li\u003e\n\u003cli\u003eLow 12μV (max) Input Offset Voltage\u003c\/li\u003e\n\u003cli\u003eScrew Terminal Connectors for Inputs and Load Outputs\u003c\/li\u003e\n\u003cli\u003eHeader Connector for Power Supply and Current Monitor Outputs (VO)\u003c\/li\u003e\n\u003cli\u003e4X4MM PCB Mounting Holes\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 41.28 x 34.13 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47186614911148,"sku":"S118","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/S118A.jpg?v=1789122126","url":"https:\/\/dotfry.com\/products\/dual-channel-0v-to-76v-current-sense-amplifier","provider":"dotfry","version":"1.0","type":"link"}