INA141U/2K5

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: High precision, low power consumption
• 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: ±150µV (maximum)
• Input Bias Current: ±50nA (maximum)
• Gain Bandwidth Product: 200kHz (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The INA141U/2K5 has a total of 8 pins:

1. V+
2. V-
3. REF
4. RG
5. OUT
6. NC
7. IN-
8. IN+

Functional Features

• High common-mode rejection ratio (CMRR) of 86dB (minimum)
• Low input offset voltage drift of 0.5µV/°C (typical)
• Wide supply voltage range for flexibility in various applications
• Low quiescent current of 500µA (typical)

Advantages and Disadvantages

Advantages

• High precision amplification of small signals
• Wide operating temperature range
• Low power consumption
• Compact SOIC package for space-constrained designs

Disadvantages

• Limited gain bandwidth product compared to some alternative models
• Not suitable for high-frequency applications

Working Principles

The INA141U/2K5 is an instrumentation amplifier designed to amplify small differential input signals while rejecting common-mode noise. It consists of three operational amplifiers and precision resistors that provide high gain and accuracy. The input signals are amplified differentially, and the common-mode noise is suppressed through internal circuitry.

Detailed Application Field Plans

The INA141U/2K5 is commonly used in various applications, including:

1. Medical equipment: ECG (Electrocardiogram) amplification
2. Industrial automation: Sensor signal conditioning
3. Test and measurement: Bridge amplifier for strain gauge measurements
4. Audio equipment: Microphone preamplifier

Detailed and Complete Alternative Models

• INA128P - DIP package, lower gain bandwidth product
• INA333 - SOT-23 package, lower power consumption
• AD8221 - SOIC package, higher gain bandwidth product

These alternative models offer similar functionality to the INA141U/2K5 but may have different specifications or package options.

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