INA149AID

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INA149AID

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  • メーカーSTマイクロエレクトロニクス

  • メーカー品番 #INA149AID

  • 在庫状況4709

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仕様

属性
Package Tube
ProductStatus Active
AmplifierType Differential
NumberofCircuits 1
SlewRate 5V/µs
-3dbBandwidth 500 kHz
Voltage-InputOffset 350 µV
Current-Supply 810µA
Current-Output/Channel 25 mA
Voltage-SupplySpan(Min) 4 V
Voltage-SupplySpan(Max) 36 V
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概要

Description

The INA149AID is a precision difference amplifier manufactured by Texas Instruments. It is designed to accurately measure differential voltages and reject common-mode signals, making it ideal for applications that require high accuracy and stability. This device is capable of handling a wide common-mode voltage range of up to ±275V, making it suitable for high-voltage measurements. It features a fixed gain of 1 and offers low offset voltage and drift, ensuring precise performance across various temperature ranges.
The INA149AID operates with a single power supply ranging from 4.5V to 36V or a dual power supply ranging from ±2.25V to ±18V, providing flexibility in different circuit designs. Its high common-mode rejection ratio (CMRR) ensures excellent noise rejection, making it ideal for use in high-noise environments. The device is commonly used in industrial, automotive, and instrumentation applications where differential signal processing is required.
In summary, the INA149AID is a versatile and reliable difference amplifier that provides accurate differential voltage measurement in high-voltage and noisy environments.

Equivalent

The INA149AID is a precision, high common-mode voltage difference amplifier by Texas Instruments, specifically designed for high-voltage applications. Equivalent products can include:
1. Analog Devices' AD629 - A high common-mode voltage difference amplifier.
2. Linear Technology's LTC2053 - A precision difference amplifier.
3. Maxim Integrated's MAX4208 - A high-voltage, high-precision difference amplifier.
These alternatives similarly handle high common-mode voltages and provide precision amplification suitable for various applications. Always verify specifications compatibility for your specific use case.

Features

The INA149AID is a precision, high common-mode voltage difference amplifier designed for use in various industrial applications. Here are its key features:
1. High Common-Mode Voltage Range: Operates with a common-mode voltage from -275 V to +275 V, allowing for wide-range voltage measurements.
2. Differential Input Voltage: Capable of handling differential input voltages from -15 V to +15 V.
3. Wide Supply Range: Functions with a power supply range from 2.7 V to 36 V, making it versatile for different power environments.
4. Low Offset Voltage: Features a low offset voltage, typically 0.1 mV, which enhances measurement accuracy.
5. High CMRR: Offers a high common-mode rejection ratio (CMRR) of 90 dB, ensuring that the amplifier accurately rejects common-mode noise.
6. Low Gain Error: Exhibits a low gain error, typically 0.002%, for precision amplification.
7. Low Input Bias Current: The low input bias current of 40 nA minimizes the effect on high-impedance sources.
8. Operational Temperature Range: Suitable for temperatures from -40°C to 85°C, ensuring reliability in various environmental conditions.
Overall, the INA149AID is ideal for applications requiring precise voltage measurements across a wide common-mode voltage range, such as in motor drives, battery monitoring, and industrial automation systems.

Pinout

The INA149AID is a precision, high common-mode voltage difference amplifier manufactured by Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The primary function of the INA149AID is to measure differential voltages across a span of large common-mode voltages. It is especially useful in applications requiring precise voltage measurements across high-voltage systems.
Here is a brief overview of its pin functions:
1. V+ (Pin 8): Positive power supply.
2. V- (Pin 4): Negative power supply or ground.
3. IN+ (Pin 3): Non-inverting input.
4. IN- (Pin 2): Inverting input.
5. REF (Pin 5): Reference voltage input; used for output voltage level adjustment.
6. OUT (Pin 6): Output pin for the amplified differential voltage.
7. NC (Pins 1 and 7): No connection; these pins are typically not used.
The INA149 can handle high common-mode voltages up to ±275V, with its design allowing for accurate measurements within such environments. Its applications include current sensing and battery management systems.

Manufacturer

The INA149AID is manufactured by Texas Instruments (TI), a global semiconductor design and manufacturing company. Texas Instruments is well-known for producing a wide range of electronic components, including analog and embedded processing chips. The company was founded in 1930 and is headquartered in Dallas, Texas. TI focuses on developing innovative technologies for various industries, such as automotive, industrial, personal electronics, and communications equipment.

Application

The INA149AID is a precision, high common-mode voltage difference amplifier used in various applications, including current sensing, voltage monitoring, and battery management systems. It is particularly useful in high-voltage systems, such as industrial automation, power supplies, and renewable energy systems, due to its ability to handle common-mode voltages up to 600V. The amplifier is also employed in automotive and telecommunication applications for accurate signal conditioning and high-side current sensing. Its wide operating temperature range and excellent performance characteristics make it suitable for harsh environments and precision instrumentation.

Package

The INA149AID is an integrated circuit from Texas Instruments and is typically packaged in an SOIC-8 (Small Outline Integrated Circuit with 8 pins) package type.

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