INA284AIDR

Product Overview

Category: Integrated Circuit (IC)

Use: The INA284AIDR is a high-precision, low-power, bidirectional current sense amplifier. It is designed for use in various applications where accurate current measurements are required.

Characteristics: - High precision: The INA284AIDR offers excellent accuracy in measuring current with a maximum offset voltage of 50µV and a gain error of only 0.1%. - Low power consumption: With a supply voltage range of 2.7V to 5.5V, the INA284AIDR consumes minimal power, making it suitable for battery-powered devices. - Bidirectional current sensing: This IC can measure both positive and negative currents, allowing for versatile applications. - Wide common-mode voltage range: The INA284AIDR can operate with a common-mode voltage range from -0.3V to +26V, enabling it to be used in a variety of systems. - Small package size: The IC is available in a small SOT-23 package, which makes it suitable for space-constrained designs.

Package/Quantity: The INA284AIDR is available in a SOT-23 package. It is typically sold in reels containing 3000 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Common-Mode Voltage Range: -0.3V to +26V
• Offset Voltage: 50µV (maximum)
• Gain Error: 0.1% (maximum)
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23

Pin Configuration

The INA284AIDR has the following pin configuration:

```

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

Functional Features

1. High Accuracy: The INA284AIDR provides precise current measurements with minimal offset voltage and gain error.
2. Bidirectional Current Sensing: It can measure both positive and negative currents accurately, making it suitable for applications requiring bi-directional current monitoring.
3. Wide Common-Mode Voltage Range: The IC can operate in systems with a wide range of common-mode voltages, enhancing its versatility.
4. Low Power Consumption: With its low power requirements, the INA284AIDR is ideal for battery-powered devices.
5. Small Package Size: The SOT-23 package allows for easy integration into space-constrained designs.

Advantages and Disadvantages

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

Disadvantages: - Limited to SOT-23 package option - May require additional external components for specific applications

Working Principles

The INA284AIDR operates based on the principle of measuring the voltage drop across a sense resistor connected in series with the current path. It amplifies this voltage drop and provides an output proportional to the current being measured. By carefully controlling the gain and offset, the IC achieves high accuracy in current sensing.

Detailed Application Field Plans

The INA284AIDR finds applications in various fields, including but not limited to: 1. Battery management systems 2. Power supply monitoring 3. Motor control systems 4. Solar energy harvesting 5. Industrial automation

Alternative Models

1. INA282AIDR: Similar specifications and features, but with a different package type (SOT-563).
2. INA286AIDR: Higher gain accuracy and lower offset voltage, suitable for more demanding applications.
3. INA240AIDR: Lower power consumption and smaller package size, ideal for ultra-low power designs.

These alternative models offer similar functionality to the INA284AIDR but may have slight differences in specifications and package options.

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