INA129PAG4

Product Overview

Category

INA129PAG4 belongs to the category of integrated circuits (ICs).

Use

The INA129PAG4 is primarily used as a precision instrumentation amplifier. It amplifies small differential input signals and provides high common-mode rejection.

Characteristics

• High accuracy and precision
• Low noise and distortion
• Wide input voltage range
• High common-mode rejection ratio
• Low power consumption

Package

The INA129PAG4 comes in a standard 8-pin plastic dual in-line package (PDIP).

Essence

The essence of INA129PAG4 lies in its ability to accurately amplify small differential input signals while rejecting common-mode noise.

Packaging/Quantity

The INA129PAG4 is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Supply Voltage: ±2.25V to ±18V
• Input Offset Voltage: ±50μV (maximum)
• Input Bias Current: ±0.5nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Common-Mode Rejection Ratio: 120dB (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The INA129PAG4 has eight pins arranged as follows:

1. REF (Reference Voltage)
2. V-
3. IN-
4. IN+
5. V+
6. RG (Gain Set Resistor)
7. OUT (Output)
8. NC (No Connection)

Functional Features

• High gain accuracy and stability
• Excellent linearity
• Low input offset voltage
• Low input bias current
• EMI filtering
• Overvoltage protection

Advantages and Disadvantages

Advantages

• Precise amplification of small differential signals
• High rejection of common-mode noise
• Wide input voltage range
• Low power consumption
• Compact and easy to integrate into circuits

Disadvantages

• Limited gain bandwidth product compared to some other amplifiers
• Requires an external gain set resistor for configuration

Working Principles

The INA129PAG4 operates based on the principle of differential amplification. It amplifies the voltage difference between its IN+ and IN- inputs while rejecting any common-mode voltage present at both inputs. This allows for accurate measurement of small differential signals in the presence of noise.

Detailed Application Field Plans

The INA129PAG4 finds applications in various fields, including:

1. Biomedical instrumentation: ECG (Electrocardiogram), EEG (Electroencephalogram), EMG (Electromyography)
2. Industrial process control and automation
3. Strain gauge amplification
4. Temperature measurement and control systems
5. Data acquisition systems
6. Precision sensor signal conditioning

Detailed and Complete Alternative Models

1. AD620: Instrumentation Amplifier with Rail-to-Rail Output
2. MCP6N11: Zero-Drift Instrumentation Amplifier
3. LT1167: Precision Instrumentation Amplifier
4. MAX4209: Low-Noise, Low-Power Instrumentation Amplifier
5. AD8221: Precision Instrumentation Amplifier with Programmable Gain

These alternative models offer similar functionality and can be considered as alternatives to the INA129PAG4 depending on specific requirements.

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