MAX4376HASA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Current Sense Amplifier
• Characteristics:
  • High accuracy and precision
  • Low offset voltage
  • Wide input voltage range
  • Small package size
• Package: Surface Mount, 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: MAX4376HASA is a current sense amplifier designed for accurate measurement of current in various applications.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage Range: 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
• Quiescent Current: 50µA (typical)

Pin Configuration

The MAX4376HASA has the following pin configuration:

```

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| | --| IN+ OUT |-- Pin 1: IN+ (Non-Inverting Input) --| IN- GND |-- Pin 2: IN- (Inverting Input) / GND --| REF VCC |-- Pin 3: REF (Reference Voltage Input) / VCC (Supply Voltage) --| SET NC |-- Pin 4: SET (Gain Setting Pin) / NC (No Connection) --| OUT NC |-- Pin 5: OUT (Amplifier Output) / NC (No Connection) --| GND NC |-- Pin 6: GND (Ground) / NC (No Connection) --| VCC NC |-- Pin 7: VCC (Supply Voltage) / NC (No Connection) |___________| ```

Functional Features

• Accurate Current Sensing: The MAX4376HASA provides precise measurement of current in various applications.
• High Gain Accuracy: It offers a high gain accuracy, ensuring reliable and consistent current measurements.
• Low Offset Voltage: The amplifier has a low offset voltage, minimizing errors in current sensing.
• Wide Input Voltage Range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Small Package Size: The compact 8-pin SOIC package allows for space-efficient integration into circuit designs.

Advantages and Disadvantages

Advantages

• High accuracy and precision in current sensing
• Wide input voltage range accommodates different applications
• Compact package size enables easy integration
• Low offset voltage minimizes measurement errors

Disadvantages

• Limited gain bandwidth product compared to some alternative models
• Gain setting pin may require additional configuration for specific applications

Working Principles

The MAX4376HASA operates as a current sense amplifier by measuring the voltage drop across a shunt resistor placed in series with the load. It amplifies this voltage drop to provide an output proportional to the current flowing through the load. The amplifier's gain can be set using the SET pin, allowing customization for specific current ranges.

Detailed Application Field Plans

The MAX4376HASA finds application in various fields where accurate current sensing is required. Some examples include:

1. Power Management Systems: Monitoring and controlling current flow in power supplies, battery chargers, and DC-DC converters.
2. Motor Control: Precise current measurement in motor control circuits for speed and torque regulation.
3. Automotive Electronics: Current monitoring in automotive systems such as electric vehicles, hybrid vehicles, and engine control units.
4. Industrial Automation: Current sensing in industrial machinery, robotics, and process control systems.
5. LED Lighting: Current measurement and control in LED driver circuits for efficient lighting solutions.

Detailed and Complete Alternative Models

1. INA219: High-side current sense amplifier with I2C interface.
2. LT6105: Precision high-side current sense amplifier with adjustable gain.
3. AD8210: Wide common-mode voltage range current shunt monitor.
4. MAX4080: Ultra-precise, low-offset current-sense amplifier.
5. LTC6101: High-side current sense amplifier with wide input voltage range.

These alternative models offer similar functionality to the MAX4376HASA and can be considered based on specific application requirements.

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