INA326EA/250

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: High precision, low noise, low power consumption
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Instrumentation amplifier
• Packaging/Quantity: Tape and reel, 250 units per reel

Specifications

• Supply Voltage: ±2.25V to ±18V
• Input Offset Voltage: ±0.5mV (maximum)
• Input Bias Current: ±1nA (maximum)
• Gain Bandwidth Product: 200kHz (typical)
• Input Common-Mode Voltage Range: -Vs + 1.8V to Vs - 1.8V
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA326EA/250 has the following pin configuration:

1. V+
2. V-
3. REF
4. RG
5. OUT
6. IN-
7. IN+
8. NC

Functional Features

• High common-mode rejection ratio (CMRR) of 120dB
• Low input offset voltage and bias current for accurate amplification
• Wide input common-mode voltage range for versatile applications
• Rail-to-rail output swing for maximum signal integrity
• Low quiescent current for energy-efficient operation

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise performance - Wide operating temperature range - Versatile input common-mode voltage range

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

Working Principles

The INA326EA/250 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's internal circuitry ensures accurate amplification with minimal distortion and noise.

Detailed Application Field Plans

The INA326EA/250 is commonly used in various applications, including:

1. Medical instrumentation: ECG (Electrocardiogram), EEG (Electroencephalogram), and EMG (Electromyogram) equipment.
2. Industrial process control: Signal conditioning for pressure, temperature, and flow sensors.
3. Test and measurement equipment: Bridge amplification, strain gauge amplification, and data acquisition systems.
4. Audio equipment: Microphone preamplifiers, audio mixers, and professional audio recording devices.

Detailed and Complete Alternative Models

Some alternative models to the INA326EA/250 include:

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

These alternative models offer similar functionality and can be considered based on specific application requirements.

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