INA141U/2K5G4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Amplification and Conditioning
• 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)
• Common Mode Rejection Ratio: 100dB (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The INA141U/2K5G4 IC has a total of 8 pins arranged as follows:

1. Pin 1: Gain Set Resistor (RG) Connection
2. Pin 2: Inverting Input (IN-)
3. Pin 3: Non-Inverting Input (IN+)
4. Pin 4: V-
5. Pin 5: Output (OUT)
6. Pin 6: V+
7. Pin 7: Null
8. Pin 8: Gain Set Resistor (RG) Connection

Functional Features

• High precision amplification of differential signals
• Low noise operation for accurate signal conditioning
• Wide bandwidth allows for amplification of high-frequency signals
• Excellent common mode rejection ratio minimizes interference
• Flexible gain adjustment through external resistors

Advantages and Disadvantages

Advantages

• High precision amplification ensures accurate signal processing
• Low noise operation preserves signal integrity
• Wide bandwidth enables amplification of high-frequency signals
• Excellent common mode rejection ratio minimizes interference
• Flexible gain adjustment allows for customization

Disadvantages

• Limited supply voltage range compared to some other ICs
• Higher cost compared to basic operational amplifiers

Working Principles

The INA141U/2K5G4 is an instrumentation amplifier designed to amplify and condition small differential signals. It consists of three operational amplifiers configured in a specific way to provide high precision amplification with low noise. The input signals are amplified differentially, and the output is obtained by subtracting the amplified non-inverting input from the amplified inverting input. This configuration allows for accurate signal conditioning and rejection of common-mode noise.

Detailed Application Field Plans

The INA141U/2K5G4 is widely used in various applications that require precise signal amplification and conditioning. Some of the common application fields include:

1. Medical Instrumentation: ECG amplification, blood pressure monitoring
2. Industrial Automation: Sensor signal conditioning, process control
3. Test and Measurement Equipment: Data acquisition systems, strain gauge amplification
4. Communication Systems: Audio signal amplification, line driver circuits
5. Automotive Electronics: Engine control units, vehicle diagnostics

Detailed and Complete Alternative Models

1. INA114AP - DIP-8 package, similar specifications
2. AD620AN - DIP-8 package, lower noise performance
3. MCP6N11-010E/SN - SOIC-8 package, lower power consumption
4. LT1167CN8 - DIP-8 package, higher common mode rejection ratio

These alternative models offer similar functionality and can be considered as substitutes for the INA141U/2K5G4 depending on specific requirements.

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