INA301A3QDGKTQ1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Current Sense Amplifier
• Characteristics: High accuracy, low power consumption, small package size
• Package: QFN-10
• Essence: INA301A3QDGKTQ1 is a current sense amplifier designed for precise 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 Offset Voltage: ±150µV (maximum)
• Gain Bandwidth Product: 500kHz (typical)
• Quiescent Current: 60µA (typical)
• Common Mode Rejection Ratio: 100dB (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA301A3QDGKTQ1 has the following pin configuration:

```

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| | --| V+ OUT |-- --| VIN- GND |-- --| VIN+ REF |-- --| SET NC |-- |___________| ```

Functional Features

• High accuracy current sensing
• Wide supply voltage range
• Low quiescent current
• Rail-to-rail input and output
• Overvoltage and reverse polarity protection

Advantages and Disadvantages

Advantages

• Precise current measurement
• Small package size allows for space-constrained designs
• Low power consumption extends battery life
• Wide operating temperature range enables use in harsh environments

Disadvantages

• Limited gain bandwidth product may not be suitable for high-frequency applications
• Single-channel design restricts simultaneous measurement of multiple currents

Working Principles

The INA301A3QDGKTQ1 utilizes a precision current-sensing resistor connected in series with the load. The voltage drop across this resistor is amplified by the internal operational amplifier, providing an output voltage proportional to the sensed current. The gain and accuracy of the amplifier can be adjusted using external resistors.

Application Field Plans

The INA301A3QDGKTQ1 finds applications in various fields, including:

1. Battery management systems
2. Power supply monitoring
3. Motor control
4. Overcurrent protection circuits
5. Industrial automation

Alternative Models

• INA301A1QDGKTQ1: Single-channel current sense amplifier with similar specifications.
• INA301A2QDGKTQ1: Dual-channel current sense amplifier for simultaneous measurement of two currents.
• INA301A4QDGKTQ1: Quad-channel current sense amplifier for multi-channel current sensing applications.

These alternative models provide flexibility in choosing the appropriate current sense amplifier based on specific requirements.

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