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INA240A3EDRQ1
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FabricanteTexas Instruments
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Peça do Fabricante #INA240A3EDRQ1
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Ficha Técnica INA240A3EDRQ1 DataSheet
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Especificações
| Atributo | Valor |
| Package / Case | Bulk |
| Series | Automotive, AEC-Q100, Zero-Drift |
| Part Status | Active |
| Amplifier Type | Current Sense |
| Number of Circuits | 1 |
| Slew Rate | 2V/µs |
| -3 dB Bandwidth | 400 kHz |
| Current - Input Bias | 90 µA |
| Voltage - Input Offset | 5 µV |
| Supply Current | 1.8mA |
| Voltage - Supply Span(Min) | 2.7 V |
| Voltage - Supply Span(Max) | 5.5 V |
| Operating Temperature | -40°C ~ 150°C (TA) |
| Mounting Type | Surface Mount |
Visão Geral
Description
This device operates over a wide supply voltage range and can handle common-mode voltages, making it versatile for different applications. It offers excellent accuracy and linearity, providing a precise proportional output voltage to the input differential voltage across a shunt resistor. The A3 version has a gain of 100 V/V, allowing for significant signal amplification, which is ideal for detecting small changes in current.
The INA240A3EDRQ1 includes features such as low offset voltage, low drift, and high CMRR (Common-Mode Rejection Ratio), ensuring stable and reliable performance over a range of conditions. It's available in a small package, making it easy to integrate into compact designs. Additionally, its automotive-qualified status makes it suitable for use in automotive applications.
Equivalent
1. Maxim Integrated MAX40080 - High-precision, low-voltage, current-sense amplifier with fast response.
2. Analog Devices AD8418A - Precision, high-voltage, high-resolution current sense amplifier.
3. Allegro Microsystems ACS712 - Current sensor with integrated Hall-effect sensor.
These alternatives vary slightly in specifications, so ensure compatibility based on specific application requirements.
Features
1. Current Sensing: Capable of measuring bi-directional current across a shunt resistor with high accuracy.
2. Wide Common-Mode Voltage Range: Operates across a wide range of common-mode voltages from -4V to +80V, making it suitable for high-side or low-side current sensing.
3. Enhanced PWM Rejection: The amplifier has enhanced pulse-width modulation (PWM) rejection, crucial for applications involving motor control and switching power supplies.
4. Accuracy and Precision: Offers high precision with a low offset voltage and low drift over temperature, ensuring accurate current measurements.
5. Automotive Grade: It is AEC-Q100 qualified, making it suitable for automotive applications.
6. Temperature Range: Operates in a wide temperature range from -40°C to +125°C.
7. Amplification: Provides a fixed gain of 100 V/V.
These features make the INA240A3EDRQ1 ideal for applications like motor control, battery management, and other automotive and industrial systems requiring precise current measurement.
Pinout
The INA240A3EDRQ1 features an 8-pin package. The pin functions are as follows:
1. IN+ (Input Positive): Connects to the positive side of the shunt resistor.
2. IN- (Input Negative): Connects to the negative side of the shunt resistor.
3. REF1: Reference input, used to set the output reference voltage.
4. REF2: Second reference input, allowing for dual reference voltage inputs.
5. OUT (Output): Provides the output voltage, which is proportional to the differential input voltage.
6. GND (Ground): Common ground connection for the device.
7. VS (Supply Voltage): Power supply input.
8. NC (No Connection): Pin not internally connected and often used for mechanical stability in PCB designs.
This device is qualified for automotive applications (indicated by the "Q1" suffix) and is known for robustness and precision in harsh environments.