INA240A1DR

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INA240A1DR

  • Производитель
  • Мфр. Часть #INA240A1DR
  • Пакет
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  • В наличии7322

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Спецификации

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
AmplifierType Current Sense
NumberofCircuits 1
SlewRate 2V/µs
-3dbBandwidth 400 kHz
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/Case 8-SOIC (0.154, 3.90mm Width)

Обзор

Description

The INA240A1DR is a high-precision, current-sense amplifier designed by Texas Instruments. It is part of the INA240 series, which is known for its ability to accurately measure bi-directional current across a shunt resistor in various applications such as motor control, power management, and battery monitoring. The device features an enhanced PWM rejection capability, making it ideal for environments with high-frequency switching.
Key specifications include a wide common-mode voltage range from -4V to +80V, ensuring compatibility with a broad range of systems. It offers a gain of 20 V/V, ensuring precise amplification of the sensed current signal. The INA240A1DR operates over a temperature range of -40°C to +125°C, making it suitable for industrial environments.
This device is known for its low offset voltage and drift, high bandwidth, and fast response time, which contribute to its high accuracy and reliability. The INA240A1DR is housed in an 8-pin SOIC package, facilitating easy integration into complex circuit designs. These features make it an excellent choice for engineers looking for precision in current-sensing applications.

Features

The INA240A1DR is a high-precision, bidirectional current-sense amplifier from Texas Instruments, designed to monitor the voltage across a shunt resistor in both high- and low-side configurations. Key features include:
1. High Precision: Offers high accuracy with low offset voltage and drift, making it suitable for precise current measurements.
2. Wide Common-Mode Range: Operates over a wide common-mode voltage range, from -4V to +80V, allowing versatile applications.
3. Fast Response Time: Features a fast settling time, enabling rapid response to dynamic changes in current.
4. Enhanced PWM Rejection: Includes enhanced Pulse Width Modulation (PWM) rejection capabilities, which improves performance in systems with high-frequency switching.
5. Gain Options: Available in multiple gain configurations, including 20, 50, 100, and 200 V/V, to suit different application requirements.
6. Temperature Range: Operates over an extended temperature range from -40°C to +125°C.
7. Package: Comes in a compact, 8-pin SOIC package (SOIC-8) for easy integration.
These features make the INA240A1DR suitable for industrial, automotive, and consumer applications where accurate current measurement and robustness are crucial.

Package

The INA240A1DR is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. This type of package is commonly used for surface mounting on printed circuit boards and provides a balance between size and ease of handling.

Pinout

The INA240A1DR is a precision current sense amplifier manufactured by Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. IN+ (Pin 1): Non-inverting input; connect to the positive side of the shunt resistor.
2. IN- (Pin 2): Inverting input; connect to the negative side of the shunt resistor.
3. REF1 (Pin 3): Reference pin for setting the output voltage reference level; can be connected to an external reference voltage.
4. REF2 (Pin 4): Additional reference pin for setting output voltage reference; typically connected to ground or another reference voltage.
5. GND (Pin 5): Ground connection.
6. OUT (Pin 6): Output pin; provides the amplified voltage signal representing the sensed current.
7. VS (Pin 7): Supply voltage pin; connect to a power source within the specified range.
8. NC (Pin 8): No connection; not internally connected and can be left floating or connected to the ground.
This amplifier is mainly used for accurate current measurements in high-side and low-side current sensing applications.

Manufacturer

The INA240A1DR is manufactured by Texas Instruments. Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits and analog chips. They serve various industries such as consumer electronics, automotive, industrial, and communications. Known for innovation and quality, Texas Instruments is one of the largest and most well-established companies in the semiconductor sector.

Application

The INA240A1DR is a current sense amplifier used in applications requiring precise current measurement and monitoring. It's commonly utilized in motor control systems, power management, battery chargers, and photovoltaic systems. The amplifier's ability to handle high common-mode voltages makes it suitable for high-side current sensing in various industrial and automotive applications. Additionally, its fast response and accurate readings support efficient operation in electric vehicles, inverters, and power supplies.

Equivalent

The INA240A1DR is a high-precision current sense amplifier by Texas Instruments. Equivalent products include:
1. MAX44284 by Maxim Integrated
2. AD8418 by Analog Devices
3. ACS770 by Allegro Microsystems
These alternatives offer similar current sensing capabilities with variations in specifications such as bandwidth, supply voltage, and package options. Always check the specific requirements and datasheets to ensure compatibility.

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