MAX44285TAUA+

The MAX44285TAUA+ is a dual channel, high precision, high voltage, current sense amplifier in 8 pin µMAX package. This dual channel high side current sense amplifier has precision accuracy specifications of VOS less than 12µV (maximum) and gain error less than 0.1% (maximum). The MAX44285T features an input common mode voltage range from 2.7V to 76V with 80KHz of small signal bandwidth which makes it ideal for interfacing with a SAR ADC for multichannel multiplexed data acquisition systems. It is typically used in base stations and communication equipment, power management systems, server backplanes, industrial control and automation.

• Gain is 20V/V
• Supply voltage from 2.7V to 5.5V
• Supply current of 1300µA at TA = +25°C
• Power supply rejection ratio of 120dB at 2.7V ≤ VDD ≤ 5.5V
• Input bias current (at VRS+ and VRS-) of 65µA and input offset current of 1100nA
• Common mode rejection ratio of 140dB at 4.5V <lt/> VRS+ <lt/> 76V
• Input offset voltage of ±12µV at TA = +25°C, input sense voltage of 125mV
• Output resistance of 0.1mohm
• Operating temperature range from -40°C to +125°C
• 80KHz signal bandwidth
• Base Stations and Communication Equipment; Industrial Control and Automation; Power Management Systems; Server Backplanes

注释

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