INA128UA/2K5E4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Instrumentation Amplifier
• Characteristics: High precision, low noise, high common-mode rejection ratio
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The INA128UA/2K5E4 is a precision instrumentation amplifier designed for accurate signal amplification in various applications.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: ±2.25V to ±18V
• Input Offset Voltage: 50µV (max)
• Input Bias Current: 500nA (max)
• Gain Bandwidth Product: 1MHz (typ)
• Input Common-Mode Voltage Range: -Vs + 1.8V to +Vs - 1.8V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The INA128UA/2K5E4 has the following pin configuration:

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| | | OUT | |___________| | | | REF(+) | |___________| | | | REF(-) | |___________| | | | V- | |___________| | | | V+ | |___________| | | | IN(-) | |___________| | | | IN(+) | |___________| ```

Functional Features

• High accuracy and precision amplification of small signals
• Low noise and distortion for improved signal quality
• Wide input common-mode voltage range for versatile applications
• High common-mode rejection ratio for effective noise rejection
• Low power consumption for energy efficiency

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise and distortion - Wide input voltage range - High common-mode rejection ratio - Low power consumption

Disadvantages: - Limited gain bandwidth product - Requires external power supply

Working Principles

The INA128UA/2K5E4 is based on the instrumentation amplifier architecture. It consists of three operational amplifiers configured to provide high gain, high input impedance, and low output impedance. The input signals are amplified differentially, rejecting common-mode noise. The gain can be adjusted using external resistors.

Application Field Plans

The INA128UA/2K5E4 finds applications in various fields, including:

1. Biomedical instrumentation: ECG, EEG, EMG amplification
2. Industrial process control: Sensor signal conditioning
3. Precision measurement equipment: Strain gauge amplification
4. Audio equipment: Microphone preamplification
5. Communication systems: Line receiver amplification

Alternative Models

Other alternative models that offer similar functionality to the INA128UA/2K5E4 include:

1. AD620 - Instrumentation Amplifier by Analog Devices
2. MCP6N11 - Zero-Drift Instrumentation Amplifier by Microchip Technology
3. LT1167 - Precision Instrumentation Amplifier by Linear Technology

These alternatives can be considered based on specific application requirements and design constraints.

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