INA2181A1IDGSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: High precision, low noise, low power consumption
• Package: VSSOP-10
• Essence: Instrumentation amplifier
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.7V to 5.5V
• Input Offset Voltage: ±150µV (maximum)
• Gain Bandwidth Product: 200kHz (typical)
• Input Bias Current: ±100nA (maximum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The INA2181A1IDGSR has a total of 10 pins arranged as follows:

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

Functional Features

• High common-mode rejection ratio (CMRR) of 120dB (typical)
• Low input offset voltage for accurate measurements
• Wide supply voltage range for flexibility in various applications
• Rail-to-rail output swing for maximum signal integrity
• Low quiescent current for power efficiency

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise performance - Small package size - Wide operating temperature range

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

Working Principles

The INA2181A1IDGSR 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 signals are amplified and filtered to provide a high-precision output.

Detailed Application Field Plans

The INA2181A1IDGSR is commonly used in various applications, including:

1. Medical equipment: ECG amplification, patient monitoring systems
2. Industrial automation: Sensor signal conditioning, process control
3. Test and measurement: Data acquisition systems, strain gauge amplification
4. Audio equipment: Microphone preamplifiers, audio mixers

Detailed and Complete Alternative Models

1. INA2180A1IDGSR: Similar specifications and pin configuration, but with a different package (SOT-23)
2. INA2182A1IDGSR: Higher gain bandwidth product (500kHz), suitable for higher frequency applications
3. INA2183A1IDGSR: Lower input offset voltage (±50µV), ideal for precision measurements

These alternative models offer similar functionality with slight variations to cater to specific requirements.

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