INA105BM

Product Overview

Category: Integrated Circuit (IC)

Use: The INA105BM is a precision instrumentation amplifier designed for accurate signal amplification in various applications.

Characteristics: - High accuracy - Low noise - Wide bandwidth - High common-mode rejection ratio (CMRR) - Low power consumption

Package: The INA105BM is available in a small outline package (SOIC) with 8 pins.

Essence: The essence of the INA105BM lies in its ability to amplify weak signals accurately and reject common-mode noise effectively.

Packaging/Quantity: The INA105BM is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: 50µV (maximum)
• Input Bias Current: 1nA (maximum)
• Gain Bandwidth Product: 3MHz (typical)
• Common-Mode Rejection Ratio: 100dB (minimum)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The INA105BM has the following pin configuration:

1. REF: Reference voltage input
2. V+: Positive supply voltage
3. V-: Negative supply voltage
4. RG: Gain setting resistor
5. IN-: Inverting input
6. IN+: Non-inverting input
7. OUT: Amplified output
8. NC: No connection

Functional Features

• High gain accuracy
• Low input offset voltage
• Low input bias current
• High common-mode rejection ratio
• Rail-to-rail output swing
• Internal EMI filtering
• Overload protection

Advantages and Disadvantages

Advantages: - Accurate amplification of weak signals - Effective rejection of common-mode noise - Wide operating temperature range - Low power consumption

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

Working Principles

The INA105BM utilizes a precision operational amplifier architecture to amplify the differential input signal while rejecting common-mode noise. It employs a combination of resistors and feedback networks to achieve high accuracy and low noise performance.

Detailed Application Field Plans

The INA105BM finds applications in various fields, including but not limited to: 1. Medical instrumentation 2. Industrial process control 3. Data acquisition systems 4. Strain gauge amplification 5. Temperature measurement 6. Bridge amplification

Detailed and Complete Alternative Models

1. AD620: Precision Instrumentation Amplifier with higher gain bandwidth product.
2. INA114: Precision Instrumentation Amplifier with lower power consumption.
3. AD8221: Precision Instrumentation Amplifier with lower input offset voltage.

These alternative models offer different trade-offs in terms of specifications and features, allowing users to choose based on their specific requirements.

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