{"product_id":"ultra-precision-zero-drift-current-sensor-range-up-to-12a","title":"Ultra Precision Zero Drift Current Sensor – Range Up To 12A","description":"\u003cp\u003eThis is an\u003cstrong\u003eUltra Precision Zero Drift High-Side Current-Sense Amplifier\u003c\/strong\u003e module, featuring the \u003cstrong\u003eLTC6102\u003c\/strong\u003e chip and it is designed to amplify the voltage drop across an on-board current-sense resistor, providing a precise unipolar output voltage proportional to the load current. The circuit incorporates a scaling resistor, \u003cstrong\u003eR4\u003c\/strong\u003e, which programs the gain of the circuit to \u003cstrong\u003e33.3V\/V\u003c\/strong\u003e. Notably, the \u003cstrong\u003eLTC6102\u003c\/strong\u003e enables current measurements on supplies ranging from \u003cstrong\u003e4V to 60V\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA key advantage of this design is its ability to \u003cstrong\u003eeliminate ground-loop\u003c\/strong\u003e errors. Since the output voltage is developed as a controlled current through a load resistance, ground-loop errors can be effectively eliminated by simply locating the load resistors at the destination point, such as subsequent signal processing stages (e.g., A\/D conversion). This feature ensures accurate and reliable current measurements, making the module suitable for a wide range of applications.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eLTC6102\u003c\/strong\u003e operates by amplifying the voltage drop on a sense resistor R1 placed in series with the power source of a load to be monitored. The sense inputs of the amplifier differentially measure the sense-resistor drop to control an internal variable current source that allows translation of the input information to a level referenced to V– (ground in this circuit). The circuit gain is established by the ratio of the output resistor R4 to the input resistor and is essentially as accurate as the resistors used. The sense resistor installed is 6mΩ and the resistor ratio sets the gain to 33.3V\/V, so the nominal output scaling is 200mV per Ampere of load current. Other scaling can be produced by resistor R4 replacement.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Input 4V to 60V DC\u003c\/li\u003e\n\u003cli\u003eLoad Current 12A Maximum\u003c\/li\u003e\n\u003cli\u003eOutput 0.2V\/A (2.4V, when Load 12A)\u003c\/li\u003e\n\u003cli\u003eOutput Voltage that Corresponds to the Load Current-Out = 0.2×IOUT\u003c\/li\u003e\n\u003cli\u003eHigh Current Screw Terminals for Supply Input and Output\u003c\/li\u003e\n\u003cli\u003eHeader Connector for Output (Voltage Monitor)\u003c\/li\u003e\n\u003cli\u003ePCB Dimensions 40.01 x 16.83 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConnections\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCN1 Power Input: Pin 1 = 4V To 60V Input 0 To 12A, Pin 2 = GND\u003c\/li\u003e\n\u003cli\u003eCN2 Output (Load): Pin 1 = 4V To 60V, 0 To 12A\u003c\/li\u003e\n\u003cli\u003eCN3 Voltage Monitor: Pin 1 Current Sense Feedback Output 0.2V\/1A, Pin 2 = GND\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47247521448108,"sku":"S144","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/S144A.jpg?v=1789818947","url":"https:\/\/dotfry.com\/products\/ultra-precision-zero-drift-current-sensor-range-up-to-12a","provider":"dotfry","version":"1.0","type":"link"}