INA2128U/1KG4

Product Overview

Category: Integrated Circuit (IC)

Use: The INA2128U/1KG4 is a high-precision, low-power, voltage-output current shunt monitor IC. It is designed for accurate measurement of current in various applications.

Characteristics: - High precision: The INA2128U/1KG4 offers excellent accuracy with a maximum offset voltage of 50µV and a maximum gain error of 0.1%. - Low power consumption: This IC operates at a low supply current of 100µA, making it suitable for battery-powered applications. - Wide input voltage range: It can measure current across a wide range of input voltages, from -2.7V to +26V. - Temperature stability: The device maintains its accuracy over a wide temperature range, from -40°C to +125°C. - Small package size: The INA2128U/1KG4 is available in a small SOT-23 package, which makes it suitable for space-constrained designs.

Package and Quantity: The INA2128U/1KG4 is available in a SOT-23 package. It is sold in quantities of 1000 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 26V
• Input Common-Mode Voltage Range: -0.3V to +26V
• Output Voltage Range: 0V to Vsupply - 1.2V
• Gain Error: ±0.1%
• Offset Voltage: ±50µV
• Quiescent Current: 100µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA2128U/1KG4 has the following pin configuration:

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

Functional Features

• High accuracy current measurement: The INA2128U/1KG4 provides precise current sensing with minimal errors.
• Wide input voltage range: It can measure current across a wide range of input voltages, making it versatile for various applications.
• Low power consumption: The IC operates at low power, making it suitable for battery-powered devices.
• Temperature stability: The device maintains its accuracy over a wide temperature range, ensuring reliable performance in different environments.

Advantages and Disadvantages

Advantages: - High precision and accuracy - Wide input voltage range - Low power consumption - Small package size

Disadvantages: - Limited output voltage range (up to Vsupply - 1.2V)

Working Principle

The INA2128U/1KG4 works based on the principle of measuring the voltage drop across a shunt resistor to determine the current flowing through it. It amplifies this voltage drop and provides an output voltage proportional to the measured current.

Application Field Plans

The INA2128U/1KG4 is commonly used in various applications, including: 1. Battery management systems 2. Power supplies and converters 3. Motor control and drives 4. Solar energy systems 5. Industrial automation

Alternative Models

Some alternative models that offer similar functionality to the INA2128U/1KG4 include: - INA2128P: DIP package version of the INA2128U/1KG4 - INA2138U: Higher precision variant with lower offset voltage - INA210: Lower precision variant with lower cost

These alternative models can be considered based on specific application requirements and budget constraints.

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