INA126U/2K5

Product Overview

• Category: Integrated Circuit (IC)
• Use: Instrumentation Amplifier
• Characteristics: High precision, low noise, high common-mode rejection ratio
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The INA126U/2K5 is a precision instrumentation amplifier designed for accurate 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: 1nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Common-Mode Rejection Ratio: 120dB (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The INA126U/2K5 has a total of 8 pins arranged as follows:

```

---

| | | U | |___________|

Pin Configuration: 1. V+ (Positive Power Supply) 2. REF (Reference Voltage) 3. RG (Gain Resistor) 4. IN- (Inverting Input) 5. IN+ (Non-Inverting Input) 6. V- (Negative Power Supply) 7. OUT (Output) 8. NC (No Connection) ```

Functional Features

• High input impedance
• Low output impedance
• Adjustable gain through external resistor
• Wide supply voltage range
• Excellent linearity and accuracy
• Low power consumption

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise performance - Wide operating temperature range - Versatile application possibilities

Disadvantages: - Limited availability in certain package options - Requires external components for proper operation

Working Principles

The INA126U/2K5 is based on the principle of an instrumentation amplifier. It amplifies small differential input signals while rejecting common-mode noise. The gain can be adjusted by selecting an appropriate value for the external gain resistor (RG). The device operates by using a combination of operational amplifiers and precision resistors to achieve high accuracy and performance.

Detailed Application Field Plans

The INA126U/2K5 finds applications in various fields, including:

1. Biomedical instrumentation: ECG (Electrocardiogram), EEG (Electroencephalogram), EMG (Electromyography)
2. Industrial process control: Pressure and temperature measurement
3. Strain gauge amplification: Load cells, force sensors
4. Data acquisition systems: Bridge amplification, sensor signal conditioning
5. Test and measurement equipment: Signal amplification, precision instrumentation

Detailed and Complete Alternative Models

1. AD620: Instrumentation Amplifier with similar specifications
2. INA128: Precision Instrumentation Amplifier with higher gain bandwidth product
3. AD8221: Low power Instrumentation Amplifier with rail-to-rail inputs

These alternative models offer similar functionality and can be considered as substitutes for the INA126U/2K5 depending on specific requirements.

Word count: 366 words