MAX4711CSE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Current Sense Amplifier
• Characteristics: High accuracy, low power consumption, small package size
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: The MAX4711CSE is a current sense amplifier designed for precision measurement of current 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: -0.3V to +28V
• Output Voltage Swing: 0V to VCC - 1.2V
• Quiescent Current: 50µA (typical)
• Gain Error: ±0.5% (maximum)
• Bandwidth: 500kHz (typical)

Pin Configuration

The MAX4711CSE has the following pin configuration:

1. IN+
2. IN-
3. REF
4. GND
5. OUT
6. VCC

Functional Features

• High accuracy current sensing
• Wide input common mode voltage range
• Low quiescent current
• Rail-to-rail output swing
• Internal reference voltage
• Thermal shutdown protection

Advantages and Disadvantages

Advantages

• High accuracy measurement of current
• Wide input voltage range allows for versatile applications
• Low power consumption extends battery life
• Compact package size enables space-constrained designs

Disadvantages

• Limited bandwidth may not be suitable for high-frequency applications
• Requires an external resistor for setting gain

Working Principles

The MAX4711CSE utilizes a differential amplifier architecture to accurately measure current. The input current is converted into a voltage signal by a precision resistor connected in series with the load. This voltage is then amplified by the internal amplifier and outputted as a proportional voltage signal.

Detailed Application Field Plans

The MAX4711CSE can be used in various applications, including:

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

Detailed and Complete Alternative Models

• INA219: High-side current shunt and power monitor
• ACS712: Hall effect-based linear current sensor
• LT6105: Precision high-side current sense amplifier
• AD8210: High common-mode voltage difference amplifier

These alternative models offer similar functionality to the MAX4711CSE and can be considered based on specific application requirements.

In conclusion, the MAX4711CSE is a versatile current sense amplifier that provides accurate measurement of current in various applications. Its small package size, low power consumption, and wide input voltage range make it suitable for a wide range of designs. However, its limited bandwidth and requirement for an external resistor should be taken into consideration.