INA141U

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INA141U

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  • Ông. Phần #INA141U

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tube
ProductStatus Active
AmplifierType Instrumentation
NumberofCircuits 1
SlewRate 4V/µs
-3dbBandwidth 1 MHz
Current-InputBias 2 nA
Voltage-InputOffset 20 µV
Current-Supply 750µA
Current-Output/Channel 15 mA
Voltage-SupplySpan(Min) 4.5 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Tổng quan

Description

The INA141U is a precision instrumentation amplifier designed to amplify small differential voltages in the presence of large common-mode voltages, making it ideal for sensor and data acquisition applications. It features a single-supply operation, allowing it to work effectively with low-power systems. The amplifier offers a fixed gain of 10, but it can be adjusted using an external resistor to achieve higher gains, providing flexibility for various measurement needs.
Key characteristics of the INA141U include low offset voltage, which ensures minimal error in signal amplification, and low input bias current, making it suitable for high-impedance sources. It also boasts a high common-mode rejection ratio (CMRR), which enhances its ability to reject noise and interference from common-mode voltages, thus preserving signal integrity.
The INA141U is housed in a compact package, making it convenient for space-constrained applications. Its robust performance and reliability make it suitable for use in medical devices, industrial controls, and other precision measurement systems.

Equivalent

The INA141U is a precision instrumentation amplifier. Equivalent products include the AD620 by Analog Devices, MAX4208 by Maxim Integrated, LT1167 by Analog Devices (formerly Linear Technology), and MCP6N11 by Microchip Technology. These alternatives offer similar functionality in terms of precision amplification, though specific features like bandwidth, supply voltage, and input noise may vary, so it's important to check the detailed specifications to ensure compatibility with your application.

Features

The INA141U is a precision instrumentation amplifier designed for a wide range of applications. Key features include:
1. High Accuracy: It offers precise amplification of low-level signals, with low offset voltage and drift.
2. Wide Supply Range: Operates on a single or dual supply, ranging from ±2.25V to ±18V, making it versatile for different systems.
3. Gain Flexibility: Gain is set with a single external resistor, allowing customization for specific applications.
4. Low Power Consumption: Efficient operation, suitable for battery-powered devices.
5. Low Noise: Provides low noise performance, essential for high-fidelity signal processing.
6. Temperature Range: Functions effectively over an extended temperature range, typically from -40°C to +85°C.
7. Robust Design: Features high Common-Mode Rejection Ratio (CMRR) and Power Supply Rejection Ratio (PSRR), enhancing reliability in noisy environments.
8. Package: Available in a compact SOIC-8 package for space-constrained applications.
These features make the INA141U suitable for medical instrumentation, industrial process controls, and other precision measurement systems.

Pinout

The INA141U is a precision instrumentation amplifier manufactured by Texas Instruments. It is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. The primary function of the INA141U is to amplify small differential signals that are riding on larger common-mode voltages, making it suitable for applications such as sensor signal conditioning and data acquisition systems.
The pin configuration for the INA141U in the SOIC package is as follows:
1. V+: Positive power supply voltage.
2. -IN: Inverting input.
3. +IN: Non-inverting input.
4. Ref: Reference voltage input, typically connected to ground.
5. RG: Gain setting resistor pin.
6. RG: Gain setting resistor pin (connected to external gain resistor).
7. Output: Output voltage pin.
8. V-: Negative power supply voltage.
By selecting appropriate resistor values for the gain-setting pins (RG), users can configure the gain of the INA141U to match the requirements of their specific application.

Manufacturer

The INA141U is manufactured by Texas Instruments, an American technology company. Texas Instruments is primarily known for designing and manufacturing semiconductors and various integrated circuits, which are widely used in electronics. The company operates globally and serves a diverse range of industries, including consumer electronics, automotive, industrial, and communications. Texas Instruments is recognized for its innovation and contribution to the advancement of technology, particularly in the development of analog and embedded processing products.

Application

The INA141U is a precision instrumentation amplifier commonly used in applications requiring accurate low-level signal amplification. Key areas include:
1. Medical Instrumentation: Amplifies biopotential signals like ECGs and EEGs.
2. Industrial Process Control: Monitors and controls sensors and transducers.
3. Data Acquisition Systems: Enhances the quality of analog signal processing.
4. Weigh Scales: Processes signals from load cells in digital weigh scales.
5. Strain Gauges: Used in measuring stress and strain with high accuracy.
6. Test and Measurement Equipment: Increases precision in lab instruments.
Its high input impedance, low noise, and excellent linearity make it suitable for applications requiring precise signal conditioning.

Package

The INA141U is an instrumentation amplifier from Texas Instruments, and it comes in an SOIC-8 (Small Outline Integrated Circuit) package type. This package has 8 pins and is suitable for surface-mount technology, offering a compact design for various applications.

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