INA111AU

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  • FabricanteTexas Instruments

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Especificações

Atributo Valor
Package Bulk
ProductStatus Active
AmplifierType Instrumentation
NumberofCircuits 1
SlewRate 17V/µs
-3dbBandwidth 2 MHz
Current-InputBias 2 pA
Voltage-InputOffset 200 µV
Current-Supply 3.3mA
Current-Output/Channel 30 mA
Voltage-SupplySpan(Min) 12 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 16-SOIC (0.295, 7.50mm Width)

Visão Geral

Description

The INA111AU is a precision instrumentation amplifier designed for accurate, low-level signal amplification. It is commonly used in applications where precise and stable signal processing is required, such as medical instrumentation, data acquisition systems, and industrial process controls.
Key features of the INA111AU include:
- High input impedance, which minimizes the loading effect on the signal source.
- Excellent DC precision with low offset voltage and drift, ensuring accuracy over time and temperature changes.
- Low noise, enhancing the amplifier’s performance in sensitive applications.
- High Common Mode Rejection Ratio (CMRR), which allows it to effectively reject noise and interference present in both input lines.
The INA111AU operates over a wide power supply range, making it versatile for different operating conditions. It is available in a standard 8-pin package, making it easy to integrate into a variety of electronic designs. Its robust performance and reliability make it a popular choice in applications demanding precision and stability.

Equivalent

The INA111AU is a precision instrumentation amplifier. Equivalent products include:
1. AD620 from Analog Devices
2. MAX4194 from Maxim Integrated
3. LT1167 from Analog Devices (formerly Linear Technology)
4. MCP6N11 from Microchip Technology
These alternatives offer similar functionality, such as high input impedance, low bias current, and low offset voltage. Always check specific specifications and pin configurations to ensure compatibility with your application.

Features

The INA111AU is a precision instrumentation amplifier with notable features that make it suitable for a variety of applications. It offers a high input impedance and a low input bias current, making it ideal for interfacing with high-impedance sensors. The device has a low offset voltage and low offset voltage drift, which enhance accuracy and stability over temperature variations. It provides a wide common-mode voltage range and a high common-mode rejection ratio (CMRR), ensuring excellent performance in noisy environments. The INA111AU operates on a single or dual power supply, with a wide supply voltage range, adding to its versatility. Its gain can be set using a single external resistor, allowing for easy gain adjustments. The device is available in a surface-mount package, making it compact and suitable for space-constrained designs. Overall, the INA111AU is well-suited for precision data acquisition systems, medical instrumentation, and other applications requiring high accuracy and reliability.

Pinout

The INA111AU is an instrumentation amplifier with an 8-pin configuration. Below is a brief description of its pin functions:
1. Pin 1 (RG2): Gain setting resistor terminal.
2. Pin 2 (V-): Negative power supply.
3. Pin 3 (Vout): Output voltage.
4. Pin 4 (Ref): Reference voltage input (usually connected to ground for a single-ended output).
5. Pin 5 (V+): Positive power supply.
6. Pin 6 (RG1): Gain setting resistor terminal.
7. Pin 7 (IN-): Inverting input.
8. Pin 8 (IN+): Non-inverting input.
The INA111AU offers high precision in amplifying small differential voltages and is typically used in applications requiring precise signal conditioning, such as sensor signal processing and medical instrumentation. The gain of the amplifier is set by connecting a resistor between RG1 and RG2, and it can operate with dual or single power supplies.

Manufacturer

The INA111AU is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a variety of electronic components, including integrated circuits. TI is known for its innovation in the semiconductor industry and provides a broad portfolio of products used in various electronic systems, including analog chips, embedded processors, and other semiconductor solutions. The company serves numerous sectors, including automotive, industrial, consumer electronics, and communications.

Application

The INA111AU is a precision instrumentation amplifier commonly used in applications requiring accurate differential signal amplification with high input impedance and low noise. Key application areas include:
1. Medical Instrumentation: For amplifying low-level bio-signals like ECG and EEG.
2. Industrial Process Controls: Where precise sensor signal amplification is needed.
3. Data Acquisition Systems: Enhancing signal integrity from sensors before digitization.
4. Weighing Scales: Amplifying load cell outputs.
5. Strain Gauge Measurements: Providing accurate readings in stress analysis.
6. Transducer Interfaces: Converting sensor outputs to usable signals for further processing.
These applications benefit from the INA111AU's high-performance specifications, such as low offset voltage, low drift, and excellent common-mode rejection ratio.

Package

The INA111AU is an instrumentation amplifier IC available in an SOIC (Small Outline Integrated Circuit) package with 16 pins. This surface-mount package is compact and commonly used for applications requiring precision amplification in electronic devices.

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