INA129UA/2K5E4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Instrumentation Amplifier
• Characteristics:
  • High precision and accuracy
  • Low noise and distortion
  • Wide input voltage range
  • Differential input and single-ended output
• Package: SOIC-8
• Essence: The INA129UA/2K5E4 is a high-performance instrumentation amplifier designed for precise signal amplification in various applications.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage: ±2.25V to ±18V
• Input Offset Voltage: 50µV (maximum)
• Input Bias Current: 0.1nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Input Common-Mode Voltage Range: ±12V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The INA129UA/2K5E4 has the following pin configuration:

```

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| | | OUT | |___________| | | | REF(+) | |___________| | | | IN(-) | |___________| | | | IN(+) | |___________| | | | V- | |___________| | | | V+ | |___________| ```

Functional Features

• High common-mode rejection ratio (CMRR)
• Low input offset voltage and bias current
• Excellent linearity and stability
• Adjustable gain with external resistors
• EMI and RF noise filtering

Advantages

• High precision and accuracy in signal amplification
• Wide input voltage range allows for versatile applications
• Low noise and distortion ensure clean signal amplification
• Compact SOIC-8 package for space-constrained designs
• Easy to use with adjustable gain and excellent stability

Disadvantages

• Limited output current capability
• Requires external resistors for gain adjustment
• Relatively higher cost compared to basic operational amplifiers

Working Principles

The INA129UA/2K5E4 is based on the principle of an instrumentation amplifier, which provides high gain and accurate amplification of differential input signals. It consists of multiple operational amplifiers and precision resistors that enable precise signal conditioning and amplification. The device operates by amplifying the difference between the two input voltages while rejecting common-mode signals.

Application Field Plans

The INA129UA/2K5E4 finds extensive use in various applications, including:

1. Medical equipment: ECG (electrocardiogram), EEG (electroencephalogram), and EMG (electromyogram) amplification.
2. Industrial automation: Signal conditioning in process control systems, data acquisition, and sensor interfacing.
3. Test and measurement: Precise signal amplification in laboratory instruments, strain gauge amplification, and bridge measurements.
4. Communication systems: Audio signal amplification, line drivers, and analog front-end circuits.

Alternative Models

Here are some alternative models that can be considered as alternatives to the INA129UA/2K5E4:

1. AD620 - Instrumentation Amplifier with Rail-to-Rail Output
2. MCP6N11 - Zero-Drift Instrumentation Amplifier
3. LT1167 - Precision Instrumentation Amplifier
4. MAX4460 - Low-Cost Instrumentation Amplifier

These alternatives offer similar functionality and performance characteristics, providing flexibility in choosing the most suitable option for specific applications.

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