Analog Devices Inc./Maxim Integrated

MAX9928FABT+G45

MAX9928FABT+G45 Description

The MAX9928FABT+G45 is a high-performance current sense amplifier designed by Analog Devices Inc./Maxim Integrated. This device is part of the Linear IC Chips category and is known for its precision and efficiency in current sensing applications. The MAX9928FABT+G45 features a wide supply voltage range, from a minimum of 2.5 V to a maximum of 5.5 V, making it suitable for a variety of power supply environments. It operates with a low supply current of just 20µA, which is crucial for applications where power consumption must be minimized.

The amplifier boasts a -3dB bandwidth of 150 kHz, ensuring accurate and reliable performance across a broad frequency spectrum. Its input bias current is a mere 1.6 µA, and the input offset voltage is maintained at 600 µV, contributing to high-precision current sensing. The MAX9928FABT+G45 is available in a compact 5UCSP package, making it ideal for space-constrained designs. Despite its small form factor, it delivers robust performance, making it a preferred choice for engineers and designers.

MAX9928FABT+G45 Features

• Wide Supply Voltage Range: The MAX9928FABT+G45 operates within a supply voltage range of 2.5 V to 5.5 V, providing flexibility in various power supply configurations.
• Low Supply Current: With a supply current of only 20µA, this amplifier is highly efficient and suitable for low-power applications.
• High Bandwidth: The -3dB bandwidth of 150 kHz ensures accurate sensing across a wide frequency range, making it suitable for dynamic current monitoring.
• Low Input Bias Current: The 1.6 µA input bias current minimizes the impact on the circuit being monitored, ensuring precise measurements.
• Low Input Offset Voltage: The 600 µV input offset voltage contributes to high accuracy in current sensing applications.
• Compact Packaging: The 5UCSP package is ideal for space-constrained designs, allowing for integration into compact systems without compromising performance.
• Surface Mount Technology: The surface mount mounting type facilitates easy integration into printed circuit boards (PCBs) and supports automated assembly processes.
• ROHS3 Compliant: The MAX9928FABT+G45 meets the stringent environmental standards of ROHS3, ensuring compliance with global regulations.

MAX9928FABT+G45 Applications

The MAX9928FABT+G45 is well-suited for a variety of applications where precise current sensing is required. Its wide supply voltage range and low power consumption make it ideal for battery-powered devices and portable electronics. The high bandwidth and low input bias current ensure accurate monitoring in dynamic systems, such as motor control and power management circuits.

Specific use cases include:

• Battery Management Systems: Accurate current sensing is crucial for monitoring battery charge and discharge cycles, ensuring optimal performance and longevity.
• Motor Control: The MAX9928FABT+G45 can be used to monitor motor current, providing real-time feedback for speed and torque control.
• Power Supplies: In power supply units, this amplifier can monitor output current to ensure stable operation and protect against overcurrent conditions.
• Industrial Automation: The compact size and high performance make it suitable for industrial applications where space is limited, such as in PLCs and control panels.

Conclusion of MAX9928FABT+G45

The MAX9928FABT+G45 is a versatile and high-performance current sense amplifier that offers a combination of wide supply voltage range, low power consumption, and high accuracy. Its compact 5UCSP package and surface mount technology make it an excellent choice for space-constrained designs. Despite being marked as obsolete, the MAX9928FABT+G45 remains a reliable option for engineers and designers looking for a precision current sensing solution. Its unique features and performance benefits make it stand out in applications ranging from battery management to industrial automation.