INA285AIDR

Product Overview

Category: Integrated Circuit (IC)

Use: The INA285AIDR is a high-precision, low-power, bidirectional current sense amplifier. It is designed to accurately measure and amplify small differential voltage signals across a shunt resistor in various applications.

Characteristics: - High precision: The INA285AIDR offers a high level of accuracy in measuring small voltage differentials, making it suitable for precise current sensing applications. - Low power consumption: This IC is designed to operate with minimal power consumption, making it ideal for battery-powered devices or energy-efficient systems. - Bidirectional current sensing: The INA285AIDR can measure both positive and negative currents flowing through the shunt resistor, allowing for versatile current monitoring capabilities. - Wide input voltage range: It can handle a wide range of input voltages, enabling its use in various voltage levels. - Small package size: The INA285AIDR comes in a compact package, making it suitable for space-constrained designs. - Packaging/Quantity: The INA285AIDR is available in a standard SOIC-8 package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.3V to +26V
• Gain Error: ±0.1%
• Offset Voltage: ±50µV
• Bandwidth: 350kHz
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA285AIDR has a total of 8 pins arranged as follows:

```

---

| | --| V+ OUT |-- --| VIN+ GND |-- --| VIN- REF |-- --| V- IN- |-- |___________| ```

Pin Description: - V+: Positive supply voltage - OUT: Amplified output voltage - VIN+: Non-inverting input voltage - GND: Ground reference - VIN-: Inverting input voltage - REF: Reference voltage - V-: Negative supply voltage - IN-: Current sense input

Functional Features

1. High Accuracy: The INA285AIDR provides precise current measurements with a low gain error and offset voltage, ensuring accurate monitoring of current flow.
2. Bidirectional Current Sensing: It can measure both positive and negative currents, making it suitable for applications where current flows in either direction.
3. Wide Input Voltage Range: The IC can handle a wide range of input voltages, allowing for flexibility in various voltage level applications.
4. Low Power Consumption: With its low quiescent current, the INA285AIDR minimizes power consumption, making it suitable for energy-efficient designs.
5. Small Package Size: The compact SOIC-8 package enables space-saving integration into small form factor devices.

Advantages and Disadvantages

Advantages: - High precision current sensing - Bidirectional current measurement capability - Wide input voltage range - Low power consumption - Compact package size

Disadvantages: - Limited bandwidth compared to some other current sense amplifiers - Not suitable for high-frequency applications

Working Principles

The INA285AIDR operates based on the principle of amplifying the voltage drop across a shunt resistor. By measuring the differential voltage across the shunt resistor, the IC accurately determines the current flowing through it. This amplified voltage is then available at the output pin for further processing or monitoring.

Application Field Plans

The INA285AIDR finds application in various fields, including but not limited to: 1. Battery management systems 2. Power supplies and converters 3. Motor control systems 4. Solar energy systems 5. Automotive electronics 6. Industrial automation

Alternative Models

Some alternative models that offer similar functionality to the INA285AIDR include: - INA186 - INA196 - MAX4080S

These alternatives can be considered based on specific application requirements, cost considerations, or availability.

Word count: 511 words