INA240A2PWR

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INA240A2PWR

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規格

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-TSSOP (0.173, 4.40mm Width)

概述

Description

The INA240A2PWR is a high-precision, current-sensing amplifier manufactured by Texas Instruments. It is designed for bidirectional current flow measurement and is particularly effective in high-speed applications with fast transient signals. One of its standout features is the advanced PWM rejection, which enhances accuracy by eliminating errors caused by pulse-width modulated signals. The device operates with a wide supply voltage range and offers high common-mode voltage capabilities, making it versatile for various applications, including motor control, battery monitoring, and power management.
This device has a fixed gain of 20 V/V and can handle common-mode voltages from -4V to +80V, making it suitable for both low-side and high-side current sensing. The INA240A2PWR comes in a small, 8-pin TSSOP package, which is ideal for space-constrained designs. It also features low offset voltage and drift, ensuring precise current measurements across a wide temperature range. The device is part of the INA240 series, which includes other variants with different gain options. Overall, the INA240A2PWR is favored for its precision, robustness, and reliability in demanding environments.

Features

The INA240A2PWR is a high-precision, bidirectional, current sense amplifier specifically designed for applications requiring accurate current measurements. Key features of this device include:
1. High Precision: It offers zero-drift architecture, providing excellent accuracy and long-term stability with a low offset voltage.
2. Bidirectional Current Sensing: The amplifier can measure current flowing in both directions, enhancing its versatility in various applications.
3. Wide Common-Mode Voltage Range: It supports a common-mode voltage range from -4V to +80V, making it suitable for a wide range of applications, including high-side and low-side current sensing.
4. Enhanced PWM Rejection: With enhanced pulse-width modulation (PWM) rejection, the INA240A2PWR is ideal for applications in motor control and power management.
5. Amplification Options: It provides a fixed gain option, facilitating easy integration into existing systems without the need for additional gain-setting components.
6. Temperature Range: The device operates over an extended temperature range, which is critical for industrial and automotive applications.
Overall, the INA240A2PWR delivers precise, reliable current sensing with enhanced performance features, making it suitable for demanding environments.

Package

The INA240A2PWR is packaged in a TSSOP (Thin Shrink Small Outline Package) with 8 pins. This package type is designed for surface-mount applications, providing a compact form factor suitable for high-density circuit boards.

Pinout

The INA240A2PWR is a high-precision current-sense amplifier from Texas Instruments, designed for applications requiring accurate current measurement. It comes in a 8-pin TSSOP (Thin Shrink Small Outline Package). Here is the pin count and function:
1. V+ (Pin 1): Power supply pin, typically 2.7 V to 5.5 V.
2. IN+ (Pin 2): Non-inverting input for the current shunt resistor.
3. IN- (Pin 3): Inverting input for the current shunt resistor.
4. REF1 (Pin 4): Reference voltage input 1 for output offset adjustment.
5. REF2 (Pin 5): Reference voltage input 2 for output offset adjustment.
6. OUT (Pin 6): Output voltage, proportional to the differential input voltage across the shunt.
7. GND (Pin 7): Ground connection.
8. NC (Pin 8): No connection.
This amplifier is particularly noted for its ability to handle high common-mode voltages and its excellent precision, making it suitable for monitoring currents in high-side applications.

Manufacturer

The INA240A2PWR is manufactured by Texas Instruments. Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components and integrated circuits. Known for their innovation and quality, they serve a variety of markets including industrial, automotive, personal electronics, and communications equipment.

Application

The INA240A2PWR is a high-precision current sense amplifier commonly used in various applications, including motor control systems, battery management systems, power supply monitoring, and overcurrent protection. Its ability to operate with high common-mode voltages makes it suitable for automotive, industrial, and telecommunications settings where precise current measurement is crucial.

Equivalent

The INA240A2PWR is a current sense amplifier from Texas Instruments, designed for bidirectional current measurements. Equivalent products include:
1. Maxim Integrated's MAX40080, which offers high precision current sensing.
2. Analog Devices' AD8418, noted for its zero-drift architecture.
3. STMicroelectronics' TSC2010, which provides similar functionalities.
4. Allegro Microsystems' ACS70331, a hall-effect-based current sensor.
Ensure that equivalent parts meet your specific application's voltage, gain, and bandwidth requirements.

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