INA114AU

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IC INST AMP 1 CIRCUIT 16SOIC

  • FabricanteTexas Instruments

  • Peça do Fabricante #INA114AU

  • Ficha Técnica INA114AU DataSheet

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Especificações

Atributo Valor
PartStatus Obsolete
BaseProductNumber INA114
AmplifierType Instrumentation
NumberofCircuits 1
SlewRate 0.6V/µs
Current-InputBias 500 pA
Voltage-InputOffset 25 µV
Current-Supply 2.2mA
Voltage-SupplySpan(Min) 4.5 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package 16-SOIC (0.295", 7.50mm Width)
SupplierDevicePackage 16-SOIC
Packaging Tube
-3dbBandwidth 1 MHz
Current-Output/Channel 20 mA

Visão Geral

Description

The INA114AU is a precision instrumentation amplifier commonly used in data acquisition systems, medical instrumentation, and industrial process controls. Featuring high accuracy and low noise, the device offers a low offset voltage and drift, ensuring precise measurements over a wide range of environmental conditions. The INA114AU is designed to amplify small differential signals while rejecting large common-mode voltages, making it ideal for applications requiring high common-mode rejection and high input impedance.
Key features include a single external resistor that controls gain, allowing easy gain adjustment from 1 to over 10,000. It operates over a wide supply range from ±4.5V to ±18V, making it flexible for various applications. The device also offers low power consumption, making it suitable for battery-operated devices.
Its robust performance, combined with a straightforward design and flexibility, makes the INA114AU a popular choice for engineers designing precision measurement systems.

Equivalent

The INA114AU is a precision instrumentation amplifier. Equivalent products include the AD620 from Analog Devices, MAX4194 from Maxim Integrated, and the LT1167 from Linear Technology (now part of Analog Devices). These alternatives provide similar functionality with varying specifications, so it's important to compare parameters like gain accuracy, input noise, and supply voltage to ensure compatibility with your application.

Features

The INA114AU is a precision instrumentation amplifier designed by Texas Instruments. It is engineered to offer high accuracy and reliable performance in applications requiring precise signal conditioning. Key features include:
1. Low Offset Voltage: The amplifier boasts a low offset voltage of around 50 µV, enhancing accuracy in measurements.

2. Low Drift: The low offset voltage drift over temperature is typically 0.5 µV/°C, ensuring stability across varying environments.
3. High Common-Mode Rejection Ratio (CMRR): With a CMRR of up to 115 dB, it effectively rejects noise and interference common to both input leads.
4. Gain Flexibility: It allows users to set the gain externally from 1 to 10,000 using a single resistor, providing versatility for different applications.
5. Wide Supply Range: The device operates on a dual supply voltage range of ±4.5V to ±18V or a single supply range, making it adaptable to various power conditions.
6. Low Input Bias Current: The typical input bias current is 2 nA, which is advantageous for high-impedance sensor applications.
7. Package: It is available in an SOIC-8 package, making it suitable for compact designs.
Overall, the INA114AU is ideal for medical instrumentation, data acquisition systems, and industrial process controls.

Pinout

The INA114AU is an instrumentation amplifier integrated circuit (IC) from Texas Instruments. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a concise description of its pin functions:
1. V+ (Pin 7): Positive power supply voltage.
2. V- (Pin 4): Negative power supply voltage.
3. RG (Pins 1 and 8): These pins are used to set the gain of the amplifier by connecting an external resistor between them.
4. Ref (Pin 5): Reference voltage input. This pin is used to set the output zero level.
5. Vout (Pin 6): Output voltage of the amplifier.
6. Vin+ (Pin 3): Non-inverting input.
7. Vin- (Pin 2): Inverting input.
The INA114 is known for its high precision, low noise, and wide bandwidth, making it suitable for applications requiring accurate differential signal processing.

Manufacturer

The INA114AU is manufactured by Texas Instruments. Texas Instruments, commonly referred to as TI, is an American technology company headquartered in Dallas, Texas. It is one of the largest semiconductor companies in the world and specializes in designing and manufacturing a wide range of semiconductor products, including integrated circuits and embedded processors. TI's products are widely used in various applications, including consumer electronics, automotive systems, industrial equipment, and communication devices. The company is known for its innovation and emphasis on research and development, consistently working on advancements in technology to provide solutions that improve performance and efficiency in electronic devices.

Application

The INA114AU is a precision instrumentation amplifier often used in applications requiring accurate low-level signal amplification. Key application areas include:
1. Medical Instrumentation: For amplifying biosignals such as ECGs and EEGs.
2. Industrial Process Control: Used in sensor signal conditioning, like temperature and pressure sensors.
3. Weigh Scales: Enhances load cell outputs.
4. Data Acquisition Systems: Improves signal fidelity in measurement systems.
5. Research Instrumentation: Utilized in laboratory experiments needing precise data capture.
6. Audio Applications: For low-noise audio signal amplification.
7. Strain Gauge Measurements: Used in stress analysis and material testing setups.
Its high accuracy and low noise performance make the INA114AU suitable for any application requiring reliable amplification of differential signals.

Package

The INA114AU is an instrumentation amplifier from Texas Instruments, available in an SOIC-8 (Small Outline Integrated Circuit) package type. This package is designed for surface mounting on printed circuit boards.