INA240A4DR

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INA240A4DR

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IC CURRENT SENSE 1 CIRCUIT 8SOIC

  • 製造商德州儀器

  • 製造商部分 #INA240A4DR

  • 有存貨4491

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規格

屬性 價值
PartStatus Active
BaseProductNumber INA240
AmplifierType Current Sense
NumberofCircuits 1
SlewRate 2V/µs
Current-InputBias 90 µA
Voltage-InputOffset 5 µV
Current-Supply 1.8mA
Voltage-SupplySpan(Min) 2.7 V
Voltage-SupplySpan(Max) 5.5 V
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package 8-SOIC (0.154", 3.90mm Width)
SupplierDevicePackage 8-SOIC
Packaging Cut Tape (CT), Tape & Reel (TR)
-3dbBandwidth 400 kHz

概述

Description

The INA240A4DR is a high-precision, bi-directional current-sense amplifier from Texas Instruments, designed for high-accuracy current measurement in various applications. This device is part of the INA240 series, known for its enhanced PWM rejection capabilities, making it suitable for motor control and other systems with rapid signal changes. The INA240A4DR can handle common-mode voltages ranging from -4V to 80V, providing flexibility in various operating environments.
Key features include a gain of 20 V/V, low offset voltage, and an excellent CMRR (Common-Mode Rejection Ratio), ensuring precise current measurements even in noisy conditions. It operates over an extended temperature range of -40°C to 125°C, suitable for industrial applications. The device comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, making it compact and easy to integrate into circuit designs.
Overall, the INA240A4DR is ideal for applications requiring reliable and accurate current measurement, such as motor control, power management systems, and battery monitoring.

Equivalent

The INA240A4DR is a high-precision current sense amplifier from Texas Instruments. Equivalent products include:
1. MAX44284 from Maxim Integrated: Offers similar current sensing capabilities.
2. LTC6102 from Analog Devices: Another high-side current sense amplifier.
3. AD8418A from Analog Devices: Known for its high bandwidth and precision.
4. INA213A from Texas Instruments: A possible alternative within the same family for slightly different specifications.
Always check the specific application requirements and datasheets for compatibility.

Features

The INA240A4DR is a high-precision, bidirectional current sense amplifier designed by Texas Instruments. It features enhanced PWM rejection, which ensures accurate current measurement even in environments with high-frequency PWM signals. It operates over a wide common-mode voltage range from -4V to +80V, making it versatile for various applications. The amplifier offers a fixed gain of 60V/V and maintains precision with a low offset voltage and low drift over temperature. It supports an operating temperature range from -40°C to +125°C, suitable for industrial and automotive environments. Additionally, the device provides robust ESD protection and is housed in an 8-pin SOIC package. This combination of features makes the INA240A4DR ideal for use in motor control, power management, and battery monitoring systems.

Pinout

The INA240A4DR is a precision bidirectional current sense amplifier from Texas Instruments. It features the following pin configuration and functions:
- Pin Count: 8 pins
- Pin Functions:
1. IN+ (Pin 1): Positive input for the current sense resistor.
2. IN- (Pin 2): Negative input for the current sense resistor.
3. REF1 (Pin 3): Reference voltage pin 1 for output offset adjustment.
4. REF2 (Pin 4): Reference voltage pin 2 for output offset adjustment.
5. GND (Pin 5): Ground connection.
6. OUT (Pin 6): Output voltage pin where the amplified voltage proportional to the sensed current is available.
7. Vs (Pin 7): Power supply pin for device operation.
8. NC (Pin 8): No internal connection, often used for mechanical stability on PCBs.
The INA240A4DR is designed for high-side or low-side current sensing applications and is notable for its enhanced PWM rejection and precision, making it suitable for a variety of power monitoring and protection applications.

Manufacturer

The INA240A4DR is manufactured by Texas Instruments, an American technology company known for designing and manufacturing semiconductors and various integrated circuits. Texas Instruments, commonly referred to as TI, is one of the largest semiconductor companies in the world, focusing on developing analog chips and embedded processors for a wide range of applications. These applications span across consumer electronics, industrial equipment, automotive systems, and more. The company is headquartered in Dallas, Texas, and has a long history of innovation in the electronics industry, dating back to its founding in 1930. TI is recognized for its extensive product portfolio and emphasis on research and development, which allows it to maintain a competitive edge in the technology sector.

Application

The INA240A4DR is a current-sense amplifier commonly used in various applications, including motor control, battery management, and power supply monitoring. It is well-suited for high-side current sensing in DC-DC converters, inverters, and chargers, as well as for overcurrent protection and energy metering. Its precision and ability to handle bidirectional current flow make it ideal for systems requiring accurate current measurement, such as electric vehicles, industrial automation, and renewable energy systems. Additionally, its wide common-mode voltage range and high-speed response are advantageous in fast-changing environments, ensuring reliable performance in dynamic applications.

Package

The INA240A4DR is a current sense amplifier from Texas Instruments, designed for high-side or low-side current sensing applications. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package type. This package is suitable for surface-mount technology, providing efficient space utilization on a printed circuit board.

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