INA181A4IDBVT

Product Overview

Category: Integrated Circuit (IC)

Use: The INA181A4IDBVT is a high-precision, low-power, bidirectional current-sensing amplifier. It is designed for use in applications that require accurate current measurements, such as motor control, power management, and battery monitoring.

Characteristics: - High precision: The INA181A4IDBVT offers 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, this amplifier consumes minimal power, making it suitable for battery-powered devices. - Bidirectional sensing: The device can measure both positive and negative currents with equal accuracy. - Wide input common-mode range: The INA181A4IDBVT can handle input voltages from -0.2V to +26V, allowing for versatile applications. - Small package: This IC comes in a SOT-23-6 package, which is compact and space-saving. - RoHS compliant: The INA181A4IDBVT is manufactured using lead-free materials, making it environmentally friendly.

Packaging/Quantity: The INA181A4IDBVT is typically sold in reels or tubes containing 3000 units per package.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.2V to +26V
• Offset Voltage: 50µV (maximum)
• Gain Error: 0.1% (maximum)
• Bandwidth: 200kHz
• Quiescent Current: 60µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA181A4IDBVT has a total of six pins arranged in the following configuration:

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

Pin Description: - V-: Negative Supply Voltage - OUT+: Positive Output - GND: Ground - OUT-: Negative Output - VIN+: Positive Input Voltage - REF: Reference Voltage - VIN-: Negative Input Voltage - V+: Positive Supply Voltage

Functional Features

1. High Accuracy: The INA181A4IDBVT provides precise current measurements with minimal offset voltage and gain error.
2. Bidirectional Sensing: It can measure both positive and negative currents accurately, making it suitable for applications requiring bi-directional current sensing.
3. Wide Input Range: The device can handle a wide range of input voltages, allowing for versatile usage in various systems.
4. Low Power Consumption: With its low quiescent current, the INA181A4IDBVT is ideal for power-sensitive applications and battery-powered devices.
5. Small Package Size: The SOT-23-6 package offers a compact form factor, enabling space-saving designs.

Advantages and Disadvantages

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

Disadvantages: - Limited bandwidth (200kHz) - Not suitable for high-frequency applications

Working Principles

The INA181A4IDBVT operates based on the principle of amplifying the voltage drop across a shunt resistor to measure current. It utilizes a differential amplifier configuration to amplify the small voltage difference between the VIN+ and VIN- pins. The amplified output voltage is then available at the OUT+ and OUT- pins, which can be further processed or measured.

Application Field Plans

The INA181A4IDBVT finds applications in various fields, including but not limited to: 1. Motor Control: Accurate current sensing is crucial for motor control systems to monitor and regulate motor currents. 2. Power Management: The amplifier can be used in power management circuits to measure current consumption and optimize power usage. 3. Battery Monitoring: It enables precise monitoring of battery charging and discharging currents, ensuring efficient battery management. 4. Industrial Automation: Current sensing is essential in industrial automation systems for monitoring and controlling equipment operation. 5. Energy Monitoring: The INA181A4IDBVT can be employed in energy monitoring systems to measure current flow in electrical circuits.

Alternative Models

Other alternative models that offer similar functionality to the INA181A4IDBVT include: - INA180A4IDBVT - INA183A4IDBVT - INA184A4IDBVT - INA186A4IDBVT

These models are part of the same