INA118UG4

Product Overview

Category: Integrated Circuit (IC)

Use: The INA118UG4 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).

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

Package: The INA118UG4 comes in a small outline integrated circuit (SOIC) package.

Essence: The essence of the INA118UG4 lies in its ability to amplify weak signals accurately and reject common-mode noise effectively.

Packaging/Quantity: The INA118UG4 is typically sold in reels containing 250 units per reel.

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: 50µV (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Input Bias Current: 0.5nA (maximum)
• Common-Mode Rejection Ratio: 100dB (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The INA118UG4 has eight pins arranged as follows:

```

---

| | | INA118UG4 | |_______________________|

     _________
    |         |

IN+ --| 1 8 |-- V+ IN- --| 2 7 |-- REF RG --| 3 6 |-- OUT GND --| 4 5 |-- V- |_________| ```

1. IN+: Non-inverting input
2. IN-: Inverting input
3. RG: Gain setting resistor
4. GND: Ground
5. V-: Negative power supply
6. OUT: Amplified output signal
7. REF: Reference voltage
8. V+: Positive power supply

Functional Features

• High gain amplification of weak signals
• Low noise amplification for accurate signal processing
• Excellent rejection of common-mode noise
• Wide input voltage range for versatile applications
• Low power consumption for energy efficiency

Advantages and Disadvantages

Advantages: - High gain amplification - Low noise performance - Excellent common-mode rejection - Versatile input voltage range - Energy-efficient operation

Disadvantages: - Limited bandwidth compared to some specialized amplifiers - Requires external gain setting resistor for customization

Working Principles

The INA118UG4 operates based on the principles of differential amplification. It amplifies the difference between the non-inverting (IN+) and inverting (IN-) input voltages while rejecting any common-mode voltage present at both inputs. This allows accurate amplification of weak signals while minimizing the impact of noise and interference.

Detailed Application Field Plans

The INA118UG4 finds application in various fields, including but not limited to: 1. Biomedical instrumentation 2. Industrial process control 3. Strain gauge amplification 4. Data acquisition systems 5. Temperature measurement 6. Bridge amplification circuits

Detailed and Complete Alternative Models

1. AD620: Precision Instrumentation Amplifier
2. MCP6N11: Zero-Drift Instrumentation Amplifier
3. LT1167: Precision Instrumentation Amplifier
4. MAX4460: Low-Noise Instrumentation Amplifier
5. AD8221: Low-Cost Instrumentation Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the INA118UG4 depending on specific requirements and preferences.

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