INA2137PAG4

Product Overview

Category: Integrated Circuit (IC)

Use: The INA2137PAG4 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 precise measurements.

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

Package: The INA2137PAG4 comes in an 8-pin plastic small outline package (SOIC). This package offers good thermal performance and ease of handling during assembly.

Essence: The essence of the INA2137PAG4 lies in its ability to amplify weak signals accurately and reject common-mode noise effectively, making it suitable for applications that require precise measurements.

Packaging/Quantity: The INA2137PAG4 is typically available in reels or tubes, with a quantity of 2500 units per reel or 50 units per tube.

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: ±150µV (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Input Bias Current: ±100nA (maximum)
• Common-Mode Rejection Ratio: 120dB (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA2137PAG4 has the following pin configuration:

```

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| | --| V+ OUT |-- --| IN+ REF |-- --| IN- GND |-- --| RG V- |-- --| VS- |-- --| VS+ |-- |___________| ```

Pin descriptions: - V+: Positive supply voltage - OUT: Output pin - IN+: Non-inverting input - REF: Reference pin - IN-: Inverting input - GND: Ground - RG: Gain-setting resistor - V-: Negative supply voltage - VS-: Negative supply voltage sense - VS+: Positive supply voltage sense

Functional Features

The INA2137PAG4 offers the following functional features:

1. High Gain: The amplifier provides a high gain, allowing for accurate amplification of weak signals.

2. Low Noise: It has low noise characteristics, minimizing signal distortion and improving measurement accuracy.

3. Excellent CMRR: The INA2137PAG4 exhibits excellent common-mode rejection ratio, reducing the impact of common-mode noise on the amplified signal.

4. Wide Input Voltage Range: It can handle a wide range of input voltages, making it versatile for various applications.

5. High Accuracy: The precision instrumentation amplifier ensures high accuracy in signal amplification, enabling precise measurements.

Advantages and Disadvantages

Advantages: - High gain for accurate signal amplification - Low noise for improved measurement accuracy - Excellent common-mode rejection ratio - Wide input voltage range for versatility - High accuracy for precise measurements

Disadvantages: - Limited availability in smaller quantities - Relatively higher cost compared to some alternatives

Working Principles

The INA2137PAG4 operates based on the principle of differential amplification. It amplifies the difference between the non-inverting (IN+) and inverting (IN-) inputs while rejecting common-mode signals. This allows for accurate amplification of small differential signals while suppressing unwanted noise.

Detailed Application Field Plans

The INA2137PAG4 finds application in various fields that require precise signal amplification and measurement. Some detailed application field plans include:

1. Industrial Automation: Used in control systems to amplify and measure sensor signals accurately, ensuring precise control of industrial processes.

2. Medical Instrumentation: Employed in medical devices to amplify bioelectric signals for diagnostic purposes, enabling accurate measurements and analysis.

3. Test and Measurement Equipment: Integrated into test and measurement instruments to amplify weak signals from sensors or transducers, facilitating accurate data acquisition.

4. Audio Amplification: Utilized in high-fidelity audio systems to amplify low-level audio signals with minimal distortion, resulting in improved sound quality.

Detailed and Complete Alternative Models

1. AD8221: Precision instrumentation amplifier with similar characteristics and performance as the INA2137PAG4. It offers a wide supply voltage range and excellent common-mode rejection ratio.

2. LTC2050: Low-noise precision instrumentation amplifier suitable for applications requiring high accuracy and low distortion. It provides a wide input voltage range and excellent CMRR.

3. MCP6N11: Programmable gain instrumentation amplifier offering flexibility in gain settings. It features low noise, high accuracy, and a wide supply voltage range.

4. MAX4468: Ultra-low noise instrumentation amplifier designed for low-power applications. It provides high gain, low