INA155UA/2K5

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics:
  • High precision
  • Low noise
  • Wide bandwidth
• Package: SOIC-8
• Essence: Instrumentation amplifier
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: ±2.25V to ±18V
• Input Offset Voltage: ±150µV (maximum)
• Input Bias Current: ±50nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Slew Rate: 0.6V/µs (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA155UA/2K5 has the following pin configuration:

```

---

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

Functional Features

• High common-mode rejection ratio (CMRR)
• Low input offset voltage
• Low input bias current
• Rail-to-rail output swing
• Wide supply voltage range
• EMI hardened

Advantages

• High precision amplification
• Suitable for low noise applications
• Wide frequency response
• Can operate with a wide range of supply voltages
• Resistant to electromagnetic interference

Disadvantages

• Relatively high cost compared to other amplifiers
• Limited availability in certain regions

Working Principles

The INA155UA/2K5 is an instrumentation amplifier designed to amplify small differential signals while rejecting common-mode noise. It consists of three operational amplifiers and precision resistors that provide high gain, high input impedance, and low output impedance. The amplifier operates by amplifying the voltage difference between its two input terminals, while rejecting any voltage that is common to both inputs.

Detailed Application Field Plans

The INA155UA/2K5 is commonly used in various applications, including:

1. Medical equipment
2. Industrial process control
3. Test and measurement instruments
4. Audio signal processing
5. Data acquisition systems

Alternative Models

• INA114AP - DIP-8 package, lower cost alternative
• INA333AIDGKR - MSOP-8 package, lower power consumption
• AD8221ARZ - SOIC-8 package, similar performance characteristics

Please note that these alternative models may have slightly different specifications and pin configurations compared to the INA155UA/2K5.

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