NCV21671DM050R2G

NCV21671DM050R2G is a current-shunt monitor. This part can measure the voltage across shunts at common-mode voltages from -0.1V to 40V, independent of supply voltage. The low offset of the zero-drift architecture enables current sensing with voltage drops across sense resistors as low as 10mV full scale. An optional enable function is available to reduce current drain through the input pins and power supply pins to negligible levels when disabled or if Vs is less than 1.5V. Two optional pins are included to simplify input filtering. This device can operate from a single +1.8V to +5.5V power supply, drawing a maximum of 80A of supply current. It is used in applications such as power bus monitoring, battery current monitoring, and lighting ballast. It is AEC−Q100 qualified and PPAP capable.

• Rail-to-rail output capability, enable pin to turn off input and power supply currents
• 40MHz typical -3dB bandwidth at (CL = 10pF, G = 50, TA = +25°C)
• Common mode rejection ratio is 127dB typical at (G = 50, TA = +25°C)
• Input offset voltage is ±4µV typical at (G = 50, TA = +25°C)
• Power supply rejection ratio is ±1µV/V typical at (VS = 1.8V to 5.5V, VSENSE = 0mV)
• Input bias current is 29µA typical at (VSENSE = 0mV, TA = +25°C)
• Gain is 50V/V typical at (TA = +25°C, VSENSE = (VIN+) − (VIN−); VS = 1.8V to 5.5V)
• Nonlinearity error is ±0.01% typical at (TA = +25°C, VSENSE = (VIN+) - (VIN−); VS = 1.8V to 5.5V)
• Slew rate is 0.3V/μs typ at (VS = 5.5V, TA = +25°C, VSENSE = (VIN+) - (VIN-); VS = 1.8V to 5.5V)
• Operating temperature range from -40°C to +150°C, Micro10 package