The MAX9643UATA+T is a high speed 60V precision current sense amplifier in 8 pin TDFN package. This unidirectional current sense amplifier is ideal for a wide variety of power supply control applications. Its high signal bandwidth allows this device to use within DC to DC switching converter power supply control loops with minimal phase delay. The IC also has 130μV (maximum) precision input offset voltage allowing small sense resistors to be used in applications where efficiency is important and when wide dynamic range current measurement is needed. High DC CMRR and AC CMRR make it easy to use in wide variety of aggressive environments. The MAX9643U is used in GSM base station power supply and high brightness LED control applications.
Supply voltage range from 2.7V to 36V
Operating temperature range from -40°C to 125°C
Supports high voltage applications
Wide input range from (VCM) -1.5V to +60V
Delivers high speed operation with 10MHz bandwidth
Increases system accuracy
Input offset voltage of 10μV at TA = +25°C and input bias current of 35μA at TA = +25°C
CMRR of 130dB (-1.5V <= VCM <= 60V) and PSRR of 125dB (VCC = 2.7V to 36V)
Input offset current of 0.02μA at TA = +25°C and quiescent supply current of 1000μA at TA = +25°C
Voltage gain of 10V/V and slew rate of 12V/μs at VOUT = 10mV to 110mV
(EN)
