MAX472ESA

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MAX472ESA

IC CURRENT SENSE 1 CIRCUIT 8SOIC

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  • Mfr. Part #MAX472ESA
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  • Datasheet
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Specifications

Part Status Obsolete
Amplifier Type Current Sense
Number of Circuits 1
Current - Input Bias 20 µA
Voltage - Input Offset 140 µV
Current - Supply 20µA
Current - Output / Channel 1.5 mA
Voltage - Supply Span (Min) 3 V
Voltage - Supply Span (Max) 36 V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Base Product Number MAX472

Overview

Description

The MAX472ESA is a high-side current-sense amplifier commonly used in electronic applications to measure current flowing through a load. It operates by detecting a small voltage drop across a sense resistor placed in the high side of the load circuit. The device amplifies this voltage drop, providing an output voltage proportional to the sensed current, which can be further processed or monitored.
Key features of the MAX472ESA include low quiescent current, wide supply voltage range, and high precision, making it suitable for battery-operated devices and systems requiring efficient power management. It can handle common-mode voltages significantly higher than the supply voltage, ensuring flexibility in various applications. The device is packaged in an 8-pin SOIC package, offering ease of integration into circuit designs.
Applications for the MAX472ESA span various industries, including telecommunications, automotive, and industrial systems, where accurate current monitoring and control are crucial. Its design supports rapid development cycles by providing a straightforward means of integrating current sensing solutions without extensive recalibration or redesign of existing systems.

Features

The MAX472ESA is a high-side current-sense amplifier designed for accurate current monitoring in a variety of applications. Key features include:
1. Wide Supply Range: Operates from 2.7V to 28V, making it versatile for different power systems.
2. High Accuracy: Provides precise current measurement with a high common-mode input voltage range.
3. Low Offset Voltage: Ensures minimal error in low-current measurements, enhancing accuracy.
4. Low Quiescent Current: Consumes minimal power, ideal for battery-powered and energy-efficient systems.
5. High Bandwidth: Suitable for fast transient detection in dynamic systems.
6. Gain Options: Available in different fixed gain versions, allowing flexibility in design.
7. Surface-Mount Package: Comes in an easy-to-use 8-pin SOIC package for compact board layouts.
8. ESD Protection: Integrated Electrostatic Discharge protection enhances reliability and longevity.
9. Temperature Range: Operates effectively across a wide temperature range, making it suitable for various environmental conditions.
These features make the MAX472ESA ideal for applications like battery management, motor control, and power monitoring in portable devices.

Package

The MAX472ESA is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Pinout

The MAX472ESA is a high-side current-sense amplifier designed for monitoring current in a variety of applications. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout and functions are as follows:
1. OUT (Pin 1): Output voltage proportional to the load current.
2. GND (Pin 2): Ground reference for the device.
3. N.C. (Pin 3): No internal connection; often used as a mechanical support or spacing.
4. IN- (Pin 4): Inverting input for the differential voltage measurement across the sense resistor.
5. IN+ (Pin 5): Non-inverting input for the differential voltage measurement across the sense resistor.
6. VCC (Pin 6): Supply voltage for the device, typically ranging from 2.7V to 5.5V.
7. REF (Pin 7): Reference voltage input for setting the output voltage baseline.
8. N.C. (Pin 8): No internal connection, similar to Pin 3.
The MAX472ESA is used to measure current by amplifying the voltage across a sense resistor. It outputs a voltage proportional to the sensed current, enabling precise current monitoring in circuits.

Manufacturer

The MAX472ESA is manufactured by Maxim Integrated, which is a company known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. Maxim Integrated was established in 1983 and is headquartered in San Jose, California. The company specializes in producing a wide range of semiconductor products, including power management solutions, sensors, and analog devices used in various applications across industries like consumer electronics, automotive, communications, healthcare, and industrial sectors. Maxim Integrated is recognized for its innovation in the field of integrated circuits and plays a significant role in the semiconductor industry. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., another leader in the semiconductor sector, further expanding its reach and capabilities in analog and mixed-signal technologies.

Application

The MAX472ESA is a precision, high-side current-sense amplifier suitable for applications including battery monitoring, power management, and motor control. It is used in systems needing accurate current measurement and feedback, such as portable devices, telecommunications equipment, and automotive electronics. The device's high-side sensing capability makes it ideal for measuring current in circuits where ground is not accessible.

Equivalent

The MAX472ESA is a current-sense amplifier. Equivalent products include:
1. INA138/INA168 by Texas Instruments
2. LT6105 by Analog Devices
3. ZXCT1009 by Diodes Incorporated
4. ACS70331 by Allegro Microsystems
These alternatives offer similar functionalities but may differ in specifications, so it's important to verify compatibility with your specific application.

Shipping

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