INA2128U

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INA2128U

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  • Mfr. Part #INA2128U
  • Package
  • Datasheet
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Specifications

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)

Overview

Description

The INA2128U is a dual instrumentation amplifier commonly used in applications requiring precise low-level signal amplification. It is part of the INA2128 family, designed by Texas Instruments, and is known for its high precision, low power consumption, and wide power supply range.
Key features of the INA2128U include:
1. Low Noise and Drift: It offers a low offset voltage and low drift over temperature changes, ensuring stable and reliable performance.
2. Gain Flexibility: The gain can be easily set with external resistors to tailor the amplifier's performance to specific application needs.
3. Wide Supply Range: It operates on dual supplies from ±2.25V to ±18V or a single supply from +4.5V to +36V, making it versatile for various systems.
4. Common Applications: These amplifiers are ideal for bridge amplifier configurations, medical instrumentation, sensor signal conditioning, and data acquisition systems.
5. Compact Package: The "U" suffix indicates a surface-mount package, which is suitable for compact designs.
Overall, the INA2128U provides high performance for precision instrumentation needs, offering a good balance between functionality, efficiency, and size.

Features

The INA2128U is a precision, low-power instrumentation amplifier from Texas Instruments. Key features include:
1. Dual Amplifier: It offers two independent amplifier channels within a single package.
2. Low Power Consumption: Designed for applications requiring minimal power usage.
3. High Common-Mode Rejection Ratio (CMRR): Ensures accurate performance even in the presence of noise from power supplies or other sources.
4. Wide Supply Range: Operates over a wide range of supply voltages, making it suitable for various applications.
5. Adjustable Gain: Features user-selectable gain settings via external resistors, adding flexibility for different application requirements.
6. Low Offset Voltage: Provides precision measurements with minimal error.
7. Low Noise: Maintains signal integrity by minimizing noise interference.
8. Temperature Range: Functions effectively across a broad temperature range, enhancing reliability in diverse environments.
9. Package Options: Available in a compact SOIC-16 package, saving space on circuit boards.
These features make the INA2128U suitable for a variety of applications, including medical instrumentation, data acquisition, and industrial process controls.

Package

The INA2128U is a precision instrumentation amplifier available in an SOIC (Small Outline Integrated Circuit) package. The specific package type is SOIC-16, which means it has 16 pins.

Pinout

The INA2128U is a dual instrumentation amplifier from Texas Instruments, designed for precision applications. It typically comes in a 16-pin SOIC (Surface-Mount Integrated Circuit) package. The pin functions are as follows:
1. V+: Positive power supply.
2. OUTA: Output of Channel A.
3. -IN A: Inverting input of Channel A.
4. +IN A: Non-inverting input of Channel A.
5. RG1 A: Gain resistor connection for Channel A.
6. RG2 A: Gain resistor connection for Channel A.
7. REF A: Reference voltage input for Channel A.
8. V-: Negative power supply or ground.
9. REF B: Reference voltage input for Channel B.
10. RG2 B: Gain resistor connection for Channel B.
11. RG1 B: Gain resistor connection for Channel B.
12. +IN B: Non-inverting input of Channel B.
13. -IN B: Inverting input of Channel B.
14. OUTB: Output of Channel B.
15. NC: No internal connection.
16. V+: Positive power supply.
This configuration allows the INA2128U to amplify small differential voltages while rejecting large common-mode voltages, suitable for sensor signal conditioning and data acquisition systems.

Manufacturer

The INA2128U is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components, including integrated circuits, processors, and sensors. Headquartered in Dallas, Texas, TI serves various industries, including automotive, industrial, personal electronics, communications, and enterprise systems. The company is known for its innovation in analog and embedded processing technologies and has a significant presence in the electronics industry worldwide.

Application

The INA2128U is a precision instrumentation amplifier commonly used in various applications, such as medical instrumentation for patient monitoring, industrial process controls for accurate sensor interfacing, and data acquisition systems requiring high precision and low noise. It is also employed in strain gauge and pressure sensor signal conditioning, as well as in test and measurement equipment where differential signal amplification is critical. Its ability to handle a wide range of common-mode voltages makes it versatile for automotive and aerospace applications as well.

Equivalent

Equivalent products to the INA2128U, which is a precision instrumentation amplifier, include the AD8221 and AD8421 from Analog Devices, the MAX4466 from Maxim Integrated, and the LT1167 from Analog Devices (previously Linear Technology). These components offer similar functionality and specifications for precision amplification in various applications. Always verify specific requirements such as gain, bandwidth, and supply voltage to ensure compatibility.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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