INA282AIDR

Product Overview

Category: Integrated Circuit (IC)

Use: The INA282AIDR is a high-precision, low-power, bidirectional current-sensing amplifier. It is designed for use in applications that require accurate measurement of both positive and negative currents.

Characteristics: - High precision: The INA282AIDR offers a maximum offset voltage of 50µV and a maximum gain error of 0.1%. - Low power consumption: It operates with a supply voltage range of 2.7V to 5.5V and consumes only 60µA of quiescent current. - Bidirectional current sensing: The device can accurately measure both positive and negative currents flowing through the load. - Wide common-mode voltage range: It supports a common-mode voltage range from -0.2V to +26V, making it suitable for various applications. - Small package: The INA282AIDR is available in an 8-pin SOIC package, which is compact and easy to integrate into circuit designs. - Packaging/Quantity: The INA282AIDR is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Current: 60µA
• Offset Voltage: 50µV (maximum)
• Gain Error: 0.1% (maximum)
• Common-Mode Voltage Range: -0.2V to +26V
• Package Type: 8-pin SOIC

Pin Configuration

The INA282AIDR has the following pin configuration:

```

---

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

Functional Features

• High accuracy current sensing: The INA282AIDR provides precise measurement of bidirectional currents with low offset voltage and gain error.
• Wide common-mode voltage range: It allows for flexible use in applications with varying common-mode voltages.
• Low power consumption: The device operates with low quiescent current, making it suitable for battery-powered applications.
• Small form factor: The compact SOIC package enables easy integration into space-constrained designs.

Advantages and Disadvantages

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

Disadvantages: - Limited to a maximum supply voltage of 5.5V - Requires external components for proper operation

Working Principles

The INA282AIDR utilizes a differential amplifier configuration to measure the voltage drop across a shunt resistor connected in series with the load. By amplifying this voltage drop, it accurately represents the current flowing through the load. The device incorporates internal circuitry to handle both positive and negative currents, allowing bidirectional current sensing.

Application Field Plans

The INA282AIDR finds application in various fields, including but not limited to: 1. Battery management systems 2. Power monitoring and control 3. Motor control systems 4. Solar energy systems 5. Industrial automation

Alternative Models

1. INA180AIDBVT: This model offers similar functionality but operates at a lower supply voltage range of 1.7V to 5.5V.
2. INA213AIDCKT: This model provides higher precision with a maximum gain error of 0.05% but operates at a higher supply voltage range of 2.7V to 36V.
3. INA282AQDRQ1: This automotive-grade model is designed for use in harsh environments and meets the AEC-Q100 Grade 1 qualification.

These alternative models offer similar features and can be considered based on specific application requirements.

Word count: 408 words