MAX4372FESA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Current Sense Amplifier
• Characteristics: High accuracy, low offset voltage, wide input voltage range
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: The MAX4372FESA is a current sense amplifier designed for precision measurement of small currents in various applications.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Input Common Mode Voltage Range: -0.1V to +28V
• Output Voltage Swing: 0V to Vcc - 1.2V
• Gain Bandwidth Product: 500kHz
• Offset Voltage: ±100µV (max)
• Quiescent Current: 50µA (typ)

Pin Configuration

The MAX4372FESA has the following pin configuration:

```

---

| | --| IN+ OUT |-- Pin 1: IN+ (Non-Inverting Input) --| IN- GND |-- Pin 2: IN- (Inverting Input) / GND --| REF VCC |-- Pin 3: REF (Reference Voltage) / VCC (Supply Voltage) --| NC NC |-- Pin 4: Not Connected (NC) --| NC NC |-- Pin 5: Not Connected (NC) --| NC NC |-- Pin 6: Not Connected (NC) --| NC OUT |-- Pin 7: Not Connected (NC) / OUT (Output) --| NC VCC |-- Pin 8: Not Connected (NC) / VCC (Supply Voltage) |___________| ```

Functional Features

• High accuracy current sensing with low offset voltage
• Wide input voltage range allows measurement of small currents across a wide range of applications
• Rail-to-rail output swing enables accurate measurement even at low supply voltages
• Low quiescent current minimizes power consumption

Advantages and Disadvantages

Advantages

• High precision current sensing
• Wide input voltage range
• Low offset voltage
• Rail-to-rail output swing
• Low power consumption

Disadvantages

• Limited number of pins for additional functionality
• Not suitable for high current applications

Working Principles

The MAX4372FESA operates as a current sense amplifier by measuring the voltage drop across a shunt resistor in series with the load. The differential voltage across the shunt resistor is amplified and converted into a proportional output voltage. This allows precise measurement of small currents in various applications.

Detailed Application Field Plans

The MAX4372FESA can be used in a wide range of applications, including:

1. Battery monitoring systems
2. Power management circuits
3. Motor control systems
4. Current monitoring in industrial equipment
5. Overcurrent protection circuits

Detailed and Complete Alternative Models

Some alternative models to the MAX4372FESA that offer similar functionality are:

1. INA219 - Current Shunt Monitor
2. LTC6101 - Precision High-Side Current Sense Amplifier
3. AD8210 - High Common-Mode Voltage Current Shunt Monitor

These alternative models provide options with different specifications and features, allowing users to choose the most suitable current sense amplifier for their specific application.

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