MAX4080SASA+T

MAX4080SASA+T is a 76V, high-side, current-sense amplifier with voltage output. It is designed for unidirectional current-sense applications. The charging current is represented by an output voltage from VREF to VCC, while the discharge current is given from VREF to GND. For maximum versatility, the 76V input voltage range applies independently to both supply voltage (VCC) and common-mode input voltage (VRS+). It offers a high level of integration, resulting in a simple, accurate, and compact current-sense solution. Applications include 48V telecom and backplane current measurement, bidirectional motor control, power-management systems, avalanche photodiode and PIN-diode current monitoring, general system/board-level current sensing, and precision high-voltage current sources.

• Ideal for high-voltage current monitoring applications
• Ideal for high-voltage current monitoring applications
• Independent operating supply voltage
• High accuracy and low quiescent current support precision application requirements
• Flexible current sensing supports monitoring of charge and discharge of batteries
• Supply current is 75µA typ at VCC=VRS+=76V, no load, VCC=VRS+=4.5V to 76V, TA=+25°C
• Input bias current is 5µA typ at VCC=VRS+=76V
• Gain accuracy is ±0.1% typ at TA=+25°C, VCC=VRS+=48V
• Common-mode rejection ratio is 124dB typ at VCC=48V, VRS+=4.5V to 76V
• 8-SO package, -40°C to +125°C temperature range

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