INA166UA/2K5

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: High precision, low noise, low distortion
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Instrumentation amplifier
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: ±2.25V to ±18V
• Input Offset Voltage: ±50µV (maximum)
• Input Bias Current: ±200nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Input Voltage Range: ±Vs - 1.2V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The INA166UA/2K5 has a total of 8 pins:

1. Pin 1: Gain Set Resistor (RG)
2. Pin 2: Inverting Input (-IN)
3. Pin 3: Non-Inverting Input (+IN)
4. Pin 4: V-
5. Pin 5: Output (OUT)
6. Pin 6: V+
7. Pin 7: Reference Voltage (REF)
8. Pin 8: Not Connected (NC)

Functional Features

• High common-mode rejection ratio (CMRR)
• Low input offset voltage and bias current
• Wide supply voltage range
• Rail-to-rail output swing
• Low distortion and noise
• Internal gain set resistor for easy configuration

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise and distortion - Versatile supply voltage range - Easy to configure with internal gain set resistor - Suitable for various applications

Disadvantages: - Limited gain bandwidth product compared to some other amplifiers - Not suitable for high-frequency applications

Working Principles

The INA166UA/2K5 is an instrumentation amplifier designed to amplify small differential signals while rejecting common-mode noise. It consists of three operational amplifiers and precision resistors that provide high gain, high input impedance, and low output impedance.

The inverting and non-inverting inputs are used to measure the differential signal, while the reference voltage pin helps reject common-mode noise. The gain set resistor allows users to adjust the amplification factor according to their requirements.

Detailed Application Field Plans

The INA166UA/2K5 is widely used in various applications, including:

1. Medical equipment: ECG (Electrocardiogram) amplification
2. Industrial automation: Sensor signal conditioning
3. Audio systems: Microphone preamplification
4. Instrumentation and measurement: Bridge amplification
5. Communication systems: Line receiver amplification

Detailed and Complete Alternative Models

1. INA116UA: Similar specifications and package, but with a different gain set resistor range.
2. INA167UA: Higher gain bandwidth product and lower input offset voltage, suitable for higher frequency applications.
3. INA168NA: Lower supply voltage range and smaller package size, ideal for portable devices.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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