ROHM Semiconductor

BU7251G-TR

BU7251G-TR Description

The BU7251G-TR is a high-performance, general-purpose comparator from ROHM Semiconductor. It is designed to offer excellent accuracy and stability in various applications. This device is a single-element, surface-mount comparator with a typical common-mode rejection ratio (CMRR) of 80dB and power supply rejection ratio (PSRR) of 80dB. It operates with a supply voltage range of 1.8V to 5.5V and ±0.9V to 2.75V, making it suitable for a wide range of applications.

BU7251G-TR Features

• High CMRR and PSRR: The BU7251G-TR boasts a typical CMRR of 80dB and PSRR of 80dB, ensuring accurate and stable operation in the presence of common-mode and power supply noise.
• Low Power Consumption: With a typical output current of 6mA at 3V and a maximum quiescent current of 35µA, this comparator is energy-efficient, making it ideal for battery-powered applications.
• Fast Propagation Delay: A maximum propagation delay of 550ns allows for rapid response times, making the BU7251G-TR suitable for high-speed applications.
• Low Input Bias Current: A maximum input bias current of 1pA at 3V ensures minimal loading on the input signal source, maintaining signal integrity.
• Low Input Offset Voltage: A maximum input offset voltage of 11mV at 3V provides high accuracy in comparison applications.
• RoHS Compliance: The BU7251G-TR is compliant with the RoHS3 directive, making it suitable for environmentally conscious designs.
• REACH Unaffected: This device is not affected by the REACH regulation, ensuring uninterrupted supply and compliance with European chemical regulations.

BU7251G-TR Applications

The BU7251G-TR is ideal for a variety of applications where high accuracy, stability, and low power consumption are critical. Some specific use cases include:

• Industrial Control Systems: The BU7251G-TR's high CMRR and PSRR make it suitable for use in noisy industrial environments, such as motor control and sensor interfaces.
• Medical Devices: Its low input bias current and low power consumption make it an excellent choice for battery-powered medical devices, such as patient monitors and diagnostic equipment.
• Automotive Applications: The BU7251G-TR's ability to operate over a wide supply voltage range and its low power consumption make it suitable for automotive sensor interfaces and control systems.
• Consumer Electronics: This comparator can be used in various consumer electronics, such as audio equipment, where low noise and high accuracy are required.

Conclusion of BU7251G-TR

The BU7251G-TR from ROHM Semiconductor is a versatile, high-performance comparator that offers excellent accuracy, stability, and low power consumption. Its unique combination of high CMRR and PSRR, low input bias current, and fast propagation delay make it an ideal choice for a wide range of applications, from industrial control systems to battery-powered medical devices. With its RoHS compliance and REACH unaffected status, the BU7251G-TR is also an environmentally conscious choice for designers looking to meet regulatory requirements.