INA126E/250G4

Product Overview

Category: Integrated Circuits (ICs)

Use: The INA126E/250G4 is a precision instrumentation amplifier designed for accurate signal amplification in various applications. It provides high gain, low noise, and excellent common-mode rejection ratio (CMRR) to ensure reliable and precise measurements.

Characteristics: - High gain - Low noise - Excellent CMRR - Wide input voltage range - Low power consumption

Package: The INA126E/250G4 comes in a small outline package (SOIC) with 8 pins. This compact package allows for easy integration into circuit boards and systems.

Essence: The essence of the INA126E/250G4 lies in its ability to amplify weak signals accurately and reject common-mode noise effectively, making it ideal for applications that require precise measurements in noisy environments.

Packaging/Quantity: The INA126E/250G4 is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage: ±2.25V to ±18V
• Input Offset Voltage: 50µV (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Input Bias Current: 0.5nA (maximum)
• Common-Mode Rejection Ratio: 120dB (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The INA126E/250G4 has the following pin configuration:

```

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

Pin Description: - V+: Positive supply voltage - IN+: Non-inverting input - IN-: Inverting input - REF: Reference voltage - OUT: Output - V-: Negative supply voltage

Functional Features

1. High Gain: The INA126E/250G4 offers a high gain of up to 1000, allowing for precise amplification of weak signals.
2. Low Noise: With low input noise voltage and current, the INA126E/250G4 ensures accurate signal amplification without introducing additional noise.
3. Excellent CMRR: The amplifier's high CMRR enables it to reject common-mode noise effectively, resulting in accurate measurements even in noisy environments.
4. Wide Input Voltage Range: The INA126E/250G4 can handle a wide range of input voltages, making it suitable for various applications.
5. Low Power Consumption: The amplifier operates with low power consumption, making it energy-efficient and suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - High gain for accurate signal amplification - Low noise for precise measurements - Excellent CMRR for effective rejection of common-mode noise - Wide input voltage range for versatile applications - Low power consumption for energy efficiency

Disadvantages: - Limited availability of alternative models - Relatively higher cost compared to some other instrumentation amplifiers

Working Principles

The INA126E/250G4 is based on the principle of differential amplification. It amplifies the difference between the non-inverting (IN+) and inverting (IN-) inputs while rejecting any common-mode signals. This allows for accurate amplification of small differential signals while minimizing the impact of noise and interference.

Application Field Plans

The INA126E/250G4 finds applications in various fields that require precise signal amplification and measurement, including: - Biomedical instrumentation - Industrial process control - Strain gauge amplification - Temperature measurement - Data acquisition systems

Alternative Models

While the INA126E/250G4 is a popular choice for precision instrumentation amplification, there are alternative models available from different manufacturers. Some of the alternatives include: - AD620 by Analog Devices - MCP6N11 by Microchip Technology - LT1167 by Linear Technology

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

In conclusion, the INA126E/250G4 is a precision instrumentation amplifier that provides high gain, low noise, and excellent CMRR for accurate signal amplification. Its compact package, wide input voltage range, and low power consumption make it suitable for various applications in fields such as biomedical instrumentation, industrial process control, and data acquisition systems. While alternative models exist, the INA126E/250G4 remains a reliable choice for precise measurements.