INA826AIDRGT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: High precision, low noise, low offset voltage
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Instrumentation amplifier
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: 50µV (maximum)
• Gain Bandwidth Product: 1MHz
• Input Bias Current: 10nA (maximum)
• Common Mode Rejection Ratio: 100dB (minimum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA826AIDRGT has a total of 8 pins arranged as follows:

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

Functional Features

• High common mode rejection ratio for accurate measurements in noisy environments.
• Low input bias current minimizes the impact of loading on the signal source.
• Wide supply voltage range allows for flexibility in various applications.
• Rail-to-rail output swing enables full utilization of the supply voltage range.

Advantages and Disadvantages

Advantages: - High precision amplification with low noise and offset voltage. - Versatile supply voltage range for different power requirements. - Suitable for applications requiring accurate measurements in noisy environments.

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

Working Principles

The INA826AIDRGT is an instrumentation amplifier designed to amplify small differential signals while rejecting common-mode noise. It consists of three operational amplifiers configured in a differential amplifier topology. The input stage provides high input impedance and low input bias current, ensuring minimal loading on the signal source. The gain stage amplifies the differential signal with high precision and low noise. The output stage provides a rail-to-rail swing, allowing for maximum utilization of the supply voltage range.

Detailed Application Field Plans

The INA826AIDRGT is commonly used in various applications, including:

1. Medical Equipment: Used in ECG (Electrocardiogram) machines and patient monitoring systems to amplify and accurately measure bioelectric signals.
2. Industrial Automation: Employed in sensor signal conditioning circuits to amplify weak sensor outputs and provide accurate measurements in industrial control systems.
3. Test and Measurement: Utilized in precision measurement instruments such as multimeters and data acquisition systems to amplify and process small signals with high accuracy.
4. Audio Systems: Integrated into audio preamplifiers to amplify weak audio signals from microphones or musical instruments while maintaining low noise and distortion levels.

Detailed and Complete Alternative Models

1. AD8221: Instrumentation amplifier with similar specifications and pin configuration.
2. LT1167: Precision instrumentation amplifier with low noise and high common mode rejection ratio.
3. MCP6N11: Programmable gain instrumentation amplifier with digitally selectable gains.

These alternative models offer similar functionality and can be considered as substitutes for the INA826AIDRGT depending on specific application requirements.

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