INA240A2DR

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INA240A2DR

  • 제조업체
  • Mfr.부분 #INA240A2DR
  • 패키지
  • 데이터시트
  • 재고 있음7666

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365 일 보장

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사양

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)

개요

Description

The INA240A2DR is a precision current sense amplifier designed by Texas Instruments. It's optimized for high-speed current sensing applications and features a high common-mode voltage range from -4V to +80V, making it suitable for various industrial and automotive applications. The device has a gain of 20V/V and provides accurate current measurements with high precision due to its low offset voltage and drift.
One notable feature of the INA240A2DR is its enhanced PWM rejection capability, which allows it to accurately measure current in systems with pulse-width modulation signals, often found in motor drives and power inverters. This characteristic helps in minimizing errors caused by switching noise.
The amplifier operates over a wide temperature range from -40°C to +125°C, ensuring reliability in harsh conditions. Housed in an 8-pin SOIC package, the INA240A2DR offers a compact, robust solution for current sensing in applications requiring high accuracy, such as battery management systems, solenoid control, and overcurrent protection circuits.

Features

The INA240A2DR is a precision current sense amplifier designed for high-side or low-side current sensing applications. Key features include:
1. Wide Input Common-Mode Voltage Range: Operates from -4 V to +80 V, suitable for a variety of applications including those with high voltage.
2. Precision Performance: Offers low offset voltage, high common-mode rejection ratio (CMRR), and low drift over temperature, ensuring accurate current measurements.
3. Enhanced PWM Rejection: Optimized for applications with pulse-width modulation (PWM) signals, minimizing errors in environments with rapidly changing signals.
4. Gain Options: Provides fixed gain options of 20 V/V, allowing flexibility in design according to the required sensing precision.
5. Low Power Consumption: Efficient design that helps to minimize power draw in systems where power efficiency is critical.
6. Small Package: Available in a space-saving SOIC-8 package, aiding in compact circuit board designs.
These features make the INA240A2DR suitable for various applications, including motor control, power management, and overcurrent protection in industrial and consumer electronics.

Package

The INA240A2DR is a current-sense amplifier packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is compact and suitable for surface-mount technology, providing reliable performance for various current sensing applications.

Pinout

The INA240A2DR is a high-precision current sense amplifier manufactured by Texas Instruments. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here’s a concise breakdown of its pin functions:
1. V+ (Pin 1): Power supply pin. Connect it to the positive voltage supply.
2. OUT (Pin 2): Output pin. Provides the amplified current sense signal.
3. GND (Pin 3): Ground pin. Connect it to the system ground.
4. IN+ (Pin 4): Non-inverting input for the current sense resistor.
5. IN- (Pin 5): Inverting input for the current sense resistor.
6. NC or N/C (Pin 6): No internal connection. This pin is not used for electrical connections.
7. REF1 (Pin 7): Reference voltage input 1. Used to set the output reference voltage.
8. REF2 (Pin 8): Reference voltage input 2. Used alongside REF1 to set the output reference voltage.
The INA240A2DR features enhanced PWM rejection, making it suitable for precise current measurements in applications with fast-changing signals.

Manufacturer

The INA240A2DR is manufactured by Texas Instruments Incorporated. Texas Instruments, commonly referred to as TI, is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. The company is known for its focus on developing innovative semiconductor technologies that serve various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is one of the largest semiconductor companies in the world and is recognized for its contributions to advancing electronics and technology development.

Application

The INA240A2DR is a current sense amplifier commonly used in applications like motor control, power management, and battery monitoring. It excels in precise current sensing, which is crucial for optimizing performance in industrial automation, automotive systems, renewable energy management, and power supply design. Its ability to handle high-side current sensing with enhanced PWM rejection makes it ideal for systems requiring accurate current measurement in noisy environments.

Equivalent

The INA240A2DR is a high-precision current sense amplifier from Texas Instruments. Equivalent products from other manufacturers might include the MAX44284 from Maxim Integrated, the AD8418 from Analog Devices, and the MCP6C02 from Microchip Technology. Ensure compatibility in terms of voltage range, bandwidth, and gain before substituting. Always verify with the latest datasheets and manufacturer specifications to ensure proper functionality and pin compatibility.

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