INA2128U

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INA2128U

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  • 製造商德州儀器

  • 製造商部分 #INA2128U

  • 有存貨4696

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規格

屬性 價值
Package Bulk,Tube
ProductStatus Active
AmplifierType Instrumentation
NumberofCircuits 2
SlewRate 4V/µs
GainBandwidthProduct 200 kHz
-3dbBandwidth 1.3 MHz
Current-InputBias 2 nA
Voltage-InputOffset 25 µV
Current-Supply 1.4mA (x2 Channels)
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 16-SOIC (0.295, 7.50mm Width)

概述

Description

The INA2128U is a precision instrumentation amplifier manufactured by Texas Instruments. It is designed to amplify small differential signals in the presence of large common-mode voltages, making it ideal for applications requiring high precision and stability. The INA2128U features a dual-channel configuration in an 8-pin SOIC (Small Outline Integrated Circuit) package, which makes it suitable for multi-channel signal processing.
Key characteristics of the INA2128U include low offset voltage, low drift, and low noise, ensuring high accuracy in measurements. The device operates over a wide supply voltage range and offers a gain set by external resistors, allowing flexibility in various applications. The common-mode rejection ratio (CMRR) is high, enhancing its performance in noisy environments.
Typical applications for the INA2128U include data acquisition systems, medical instrumentation, and sensor signal conditioning. Its robust design caters to both single-supply and dual-supply operations, providing versatility across different circuit requirements. The INA2128U stands out for its reliability and efficiency in precision measurement applications.

Equivalent

The INA2128U is a dual instrumentation amplifier. Equivalent products include:
1. AD8222 from Analog Devices
2. MAX414 from Maxim Integrated
3. LT1167 from Analog Devices (formerly Linear Technology)
4. AMP04 from Analog Devices
These alternatives offer similar functionalities suitable for applications requiring precision amplification. Always check the datasheet to ensure compatibility with specific requirements.

Features

The INA2128U is a precision instrumentation amplifier known for its high performance and reliability. Key features include:
1. Dual-Channel Configuration: It offers two channels, ideal for multi-signal processing applications.
2. Wide Supply Range: Operates with a supply voltage from ±2.25V to ±18V, providing versatility for various applications.
3. High CMRR: Common-mode rejection ratio exceeds 100 dB, ensuring excellent noise rejection and signal integrity.
4. Adjustable Gain: Gain is set by external resistors, allowing for flexibility and customization according to application needs.
5. Low Offset Voltage: Features a low offset voltage of typically 50µV, enhancing precision in measurements.
6. Low Drift: Offers low offset voltage drift over temperature, improving stability.
7. Wide Bandwidth: Provides a bandwidth of up to 200 kHz, suitable for dynamic signal processing.
8. Low Input Bias Current: Minimizes errors due to bias current with typical values as low as 20 nA.
9. Compact Package: Available in an SOIC-16 package, saving space on PCBs.
These features make the INA2128U suitable for applications like sensor signal conditioning, medical instrumentation, and industrial process controls.

Pinout

The INA2128U is a precision instrumentation amplifier that typically comes in a 16-pin SOIC (Small Outline Integrated Circuit) package. Here’s a breakdown of its pin functions:
1. Pin 1: RG1 - Gain Resistor Pin 1
2. Pin 2: RG2 - Gain Resistor Pin 2
3. Pin 3: +IN1 - Non-inverting Input 1
4. Pin 4: -IN1 - Inverting Input 1
5. Pin 5: REF1 - Reference Voltage 1
6. Pin 6: VOUT1 - Output Voltage 1
7. Pin 7: V- - Negative Power Supply
8. Pin 8: V+ - Positive Power Supply
9. Pin 9: VOUT2 - Output Voltage 2
10. Pin 10: REF2 - Reference Voltage 2
11. Pin 11: -IN2 - Inverting Input 2
12. Pin 12: +IN2 - Non-inverting Input 2
13. Pin 13: RG2 - Gain Resistor Pin 2
14. Pin 14: RG1 - Gain Resistor Pin 1
15. Pin 15: NC - No Connection
16. Pin 16: NC - No Connection
This amplifier is used for accurate and precise differential signal amplification in various applications.

Manufacturer

The INA2128U is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments specializes in designing and manufacturing a variety of semiconductor devices, including analog chips, embedded processors, and digital light processing (DLP) technology. TI is known for its focus on innovation and providing products that serve a broad range of markets, such as automotive, industrial, consumer electronics, communications equipment, and enterprise systems. As a leader in the semiconductor industry, TI emphasizes research and development to advance technology and meet the needs of its customers worldwide.

Application

The INA2128U is a precision, dual instrumentation amplifier commonly used in medical instrumentation, sensor signal conditioning, and data acquisition systems. Its ability to accurately amplify low-level differential signals while rejecting common-mode noise makes it ideal for applications requiring precise measurements, such as ECG and EEG monitoring in medical devices. It is also utilized in industrial automation for pressure, temperature, and flow sensing. Additionally, its low power consumption and high input impedance make it suitable for portable and battery-operated devices, including wearable technology and remote sensing equipment. Its dual-channel design facilitates multi-signal processing in compact form factors.

Package

The INA2128U is a precision instrumentation amplifier typically available in a SOIC-16 (Surface-Mount Small Outline Integrated Circuit) package. This configuration is designed for compact and efficient mounting on printed circuit boards.

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