INA2128UG4

Product Overview

The INA2128UG4 is a precision, low-power, zero-drift instrumentation amplifier designed for use in a wide range of applications. This device falls under the category of integrated circuits and is commonly used in sensor amplification, industrial automation, and medical instrumentation due to its high accuracy and low power consumption. The INA2128UG4 exhibits exceptional characteristics such as low offset voltage, low noise, and high common-mode rejection ratio. It is available in a small outline package, making it suitable for space-constrained designs. The essence of this product lies in its ability to provide accurate amplification of small signals while maintaining stability over time and temperature variations. The INA2128UG4 is typically packaged in quantities suitable for both prototyping and production.

Specifications

• Supply Voltage: ±1.35V to ±18V
• Input Offset Voltage: 25µV (maximum)
• Gain Bandwidth Product: 800kHz
• Common-Mode Rejection Ratio: 140dB (typical)
• Operating Temperature Range: -40°C to 125°C
• Package Type: VSSOP

Detailed Pin Configuration

The INA2128UG4 features a standard pin configuration with eight pins, including two input pins, two output pins, and power supply pins. The pinout is as follows: 1. REF: Reference pin 2. IN–: Negative input 3. IN+: Positive input 4. V–: Negative power supply 5. OUT: Output 6. V+: Positive power supply 7. RG: Gain setting resistor 8. NC: No connect

Functional Features

The key functional features of the INA2128UG4 include: - Zero-drift architecture for minimal offset voltage drift - Low noise performance for accurate signal amplification - Wide operating voltage range for versatile application - High common-mode rejection ratio for improved signal integrity - Small form factor for space-constrained designs

Advantages and Disadvantages

Advantages

• Exceptional accuracy and stability
• Low power consumption
• Versatile operating voltage range
• Compact package size

Disadvantages

• Limited gain bandwidth product compared to some alternatives
• Higher cost compared to basic operational amplifiers

Working Principles

The INA2128UG4 utilizes a zero-drift architecture, which continuously calibrates and compensates for input offset voltage and drift. This ensures that the output accurately reflects the amplified input signal, even in the presence of temperature variations and long-term drift. The device achieves this through a combination of advanced circuitry and internal feedback mechanisms, resulting in superior precision and stability.

Detailed Application Field Plans

The INA2128UG4 finds extensive application in various fields, including: - Sensor amplification in automotive and industrial systems - Precision measurement equipment in test and measurement applications - Medical instrumentation for patient monitoring and diagnostics - Industrial automation for process control and monitoring

Detailed and Complete Alternative Models

Some alternative models to the INA2128UG4 include: - AD8221ARZ: Analog Devices instrumentation amplifier with similar precision and low power consumption - MCP6N11-010E/SN: Microchip instrumentation amplifier offering comparable performance in a different package - MAX4209ESA: Maxim Integrated instrumentation amplifier with similar characteristics and operating voltage range

In conclusion, the INA2128UG4 is a precision instrumentation amplifier that offers exceptional accuracy, stability, and low power consumption, making it well-suited for a wide range of applications across various industries.

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