INA111BPG4

Product Overview

Category: Integrated Circuit (IC)

Use: The INA111BPG4 is a precision instrumentation amplifier designed for accurate signal amplification in various applications. It provides high common-mode rejection and low offset voltage, making it suitable for precise measurements.

Characteristics: - High accuracy - Low noise - Wide input voltage range - High common-mode rejection ratio - Low power consumption

Package: The INA111BPG4 comes in a standard 8-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the INA111BPG4 lies in its ability to amplify weak signals accurately while rejecting common-mode noise.

Packaging/Quantity: The INA111BPG4 is typically available in reels or tubes, with quantities varying depending on the supplier.

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: 50µV (maximum)
• Input Bias Current: 0.5nA (maximum)
• Gain Bandwidth Product: 1MHz
• Common-Mode Rejection Ratio: 100dB (minimum)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The INA111BPG4 has eight pins arranged as follows:

```

---

| | | 1 2 3 4| |_______________________|

1. V-
2. IN-
3. IN+
4. V+

---

| | | 8 7 6 5| |_______________________|

1. REF
2. OUT
3. NC (No Connection)
4. V- ```

Functional Features

• High precision amplification of weak signals
• Excellent common-mode rejection for accurate measurements
• Low offset voltage for minimal error
• Wide input voltage range for versatile applications
• Low power consumption for energy efficiency

Advantages and Disadvantages

Advantages: - High accuracy and precision - Low noise for clean signal amplification - Versatile input voltage range - Excellent common-mode rejection ratio - Low power consumption

Disadvantages: - Limited gain bandwidth product compared to some alternatives - Higher cost compared to basic operational amplifiers

Working Principles

The INA111BPG4 is based on the instrumentation amplifier architecture, which consists of three operational amplifiers. It amplifies the difference between the IN+ and IN- inputs while rejecting any common-mode signals. The amplified output is then available at the OUT pin.

Detailed Application Field Plans

The INA111BPG4 finds applications in various fields where accurate signal amplification is crucial. Some examples include: 1. Biomedical instrumentation 2. Industrial process control 3. Strain gauge amplification 4. Data acquisition systems 5. Precision measurement equipment

Detailed and Complete Alternative Models

1. AD620: A low-cost alternative with similar specifications.
2. AD8221: Offers higher gain bandwidth product and lower input bias current.
3. MCP6N11: Provides rail-to-rail input and output operation.
4. LT1167: Offers high precision and low noise performance.

These are just a few examples; there are several alternative models available from different manufacturers.

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