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The RTQ6058 family is a high-precision current sense amplifier family widely used in most current-reporting systems and current-sensing circuits for precision current measurement and system optimization. These devices can sense a low voltage drop across the shunt resistor over a wide common-mode voltage range from 3V to 80V. They feature extremely low input offset, offset drift, gain error, and gain drift, all achieved through a zero-drift architecture. Five fixed gain options - 20, 50, 100, 200, and 500V/V - are available to accommodate different current scaling applications. The RTQ6058 family is designed for both DC current measurement and high-speed transient applications, such as fast overcurrent protection, with a high bandwidth of 1.3MHz and a 65dB AC CMRR at 50kHz.These devices operate from a single power supply ranging from 2.7V to 20V and draw 1.2mA of supply current. The RTQ6058 is available in an SOT-23-5 package with two pinout variants.The recommended ambient temperature range is -40°C to 125°C.
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<div class="spec-list"><ul class="lv1"><li>Wide Common-Mode Range: 3V to 80V </li><li>High-Side Sensing </li><li>Common-Mode Rejection Ratio (CMRR) <ul class="lv2"> <li></li><li>120dB DC CMRR </li><li>65dB AC CMRR (f = 50kHz) </li></ul> </li><li>Accuracy <ul class="lv2"> <li>Gain Error <ul class="lv3"> <li>RTQ6058A: ±0.5% (Maximum)</li><li>RTQ6058B: ±0.8% (Maximum)</li><li>20ppm/°C Gain Drift (Maximum)</li></ul> </li><li>Offset <ul class="lv3"> <li>RTQ6058A: ±25μV (Typical)</li><li>RTQ6058A: 0.1μV/°C Offset Drift (Typical)</li><li>RTQ6058B: ±250μV (Typical)</li><li>RTQ6058B: 0.2μV/°C Offset Drift (Typical)</li></ul> </li></ul> </li><li>Choice of Gains <ul class="lv2"> <li></li><li>RTQ6058-20: 20V/V </li><li>RTQ6058-50: 50V/V </li><li>RTQ6058-100: 100V/V </li><li>RTQ6058-200: 200V/V </li><li>RTQ6058-500: 500V/V </li></ul> </li><li>High Bandwidth: 1.3MHz </li><li>Slew Rate: 9V/μs </li><li>Quiescent Current: 1.2mA (Maximum) </li><li>Package: 5-Pin SOT-23 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Servers, Storage and Network Equipment </li><li>48V Rack Power Systems </li><li>48V Server Power Supply (PSU) </li><li>Point of Load (POL) Power Modules </li><li>Telecom Equipment </li></ul></div>
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