INA2143UG4

Product Overview

Category: Integrated Circuit (IC)

Use: The INA2143UG4 is a 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: - Precision current sensing - Low power consumption - Bidirectional current measurement - High accuracy - Wide input voltage range

Package: The INA2143UG4 is available in a small outline package (SOP) with 8 pins.

Essence: The essence of the INA2143UG4 lies in its ability to accurately measure bidirectional currents with high precision and low power consumption.

Packaging/Quantity: The INA2143UG4 is typically sold in reels or tubes containing a specific quantity of ICs, depending on the manufacturer's packaging standards.

Specifications

The specifications of the INA2143UG4 include:

• Supply Voltage Range: 2.7V to 5.5V
• Input Common-Mode Voltage Range: -0.2V to +26V
• Gain Error: ±0.25%
• Offset Voltage: ±100µV
• Bandwidth: 200kHz
• Quiescent Current: 60µA

Pin Configuration

The INA2143UG4 has the following pin configuration:

1. V+ (Positive Power Supply)
2. V- (Negative Power Supply)
3. IN+ (Positive Current Sense Input)
4. IN- (Negative Current Sense Input)
5. REF (Reference Voltage Output)
6. OUT (Amplifier Output)
7. SET (Gain Setting)
8. GND (Ground)

Functional Features

The functional features of the INA2143UG4 are as follows:

• Bidirectional current sensing: The INA2143UG4 can accurately measure both positive and negative currents.
• High accuracy: With a gain error of ±0.25% and offset voltage of ±100µV, the INA2143UG4 provides precise current measurements.
• Low power consumption: The quiescent current of 60µA ensures minimal power usage.
• Wide input voltage range: The INA2143UG4 can handle input voltages ranging from -0.2V to +26V.

Advantages and Disadvantages

Advantages: - Accurate bidirectional current sensing - Low power consumption - High precision measurements - Wide input voltage range

Disadvantages: - Limited bandwidth (200kHz) - Requires external gain setting

Working Principles

The INA2143UG4 operates based on the principle of amplifying the voltage difference across a shunt resistor connected in series with the current path. By measuring this amplified voltage, the current flowing through the shunt resistor can be determined accurately.

Detailed Application Field Plans

The INA2143UG4 finds applications in various fields, including:

1. Battery monitoring systems
2. Power management systems
3. Motor control
4. Solar energy systems
5. Industrial automation

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the INA2143UG4 are:

1. INA210
2. INA213
3. INA216
4. INA219

These models provide options with different specifications and features, allowing users to choose the most suitable one for their specific application requirements.

In conclusion, the INA2143UG4 is a precision, low-power, bidirectional current-sensing amplifier that offers accurate measurement of both positive and negative currents. Its high accuracy, low power consumption, and wide input voltage range make it suitable for various applications in fields such as battery monitoring, power management, motor control, solar energy systems, and industrial automation.