MAX4712ESE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Current Sense Amplifier
• Characteristics:
  • High accuracy current sensing
  • Wide input voltage range
  • Low offset voltage and drift
  • Small package size
• Package: 16-pin Narrow SOIC (Small Outline Integrated Circuit)
• Essence: The MAX4712ESE is a current sense amplifier designed for accurate measurement of current in various applications.
• Packaging/Quantity: Available in tape and reel packaging, with 250 units per reel.

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
• Quiescent Current: 100µA (typical)
• Gain Accuracy: ±0.5% (typical)
• Bandwidth: 500kHz (typical)

Pin Configuration

The MAX4712ESE has the following pin configuration:

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| | --| VCC OUT |-- Pin 1: VCC - Power supply --| GND IN- |-- Pin 2: GND - Ground --| REF IN+ |-- Pin 3: REF - Reference voltage input --| NC FB |-- Pin 4: NC - No connection --| NC SET |-- Pin 5: NC - No connection --| NC NC |-- Pin 6: NC - No connection --| NC NC |-- Pin 7: NC - No connection --| NC NC |-- Pin 8: NC - No connection --| NC NC |-- Pin 9: NC - No connection --| NC NC |-- Pin 10: NC - No connection --| NC NC |-- Pin 11: NC - No connection --| NC NC |-- Pin 12: NC - No connection --| NC NC |-- Pin 13: NC - No connection --| NC NC |-- Pin 14: NC - No connection --| NC NC |-- Pin 15: NC - No connection --| NC GND |-- Pin 16: GND - Ground |___________| ```

Functional Features

• Accurate current sensing: The MAX4712ESE provides high accuracy in measuring current, making it suitable for precision applications.
• Wide input voltage range: It can handle a wide range of input voltages, allowing flexibility in various circuit designs.
• Low offset voltage and drift: The amplifier has low offset voltage and drift, ensuring accurate current measurements over time.
• Small package size: The 16-pin Narrow SOIC package offers a compact form factor, saving space on the PCB.

Advantages and Disadvantages

Advantages: - High accuracy current sensing - Wide input voltage range - Low offset voltage and drift - Compact package size

Disadvantages: - Limited pin configuration options - Not suitable for high current applications

Working Principles

The MAX4712ESE operates as a current sense amplifier by measuring the voltage drop across a shunt resistor connected 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 and accuracy are carefully calibrated to ensure precise current measurements.

Detailed Application Field Plans

The MAX4712ESE is commonly used in various applications that require accurate current sensing, such as:

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

Detailed and Complete Alternative Models

1. INA219: High-side current/power monitor with I2C interface.
2. ACS712: Hall effect-based linear current sensor.
3. LT6105: Precision high-side current sense amplifier.
4. MAX4080: Precision, high-speed, bidirectional current-sense amplifier.

These alternative models offer similar functionality to the MAX4712ESE and can be considered as alternatives based on specific application requirements.

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