Texas Instruments

LM139AW/883

LM139AW/883 Description

The LM139AW/883, manufactured by Texas Instruments, is a general-purpose, low power, low offset voltage quad comparator. It is designed for applications requiring high precision and low power consumption. The device is available in a surface-mount tube package and is compliant with RoHS3 standards. With a propagation delay of 1.3µs (typical) and a maximum input offset voltage of 2mV at 30V, the LM139AW/883 offers excellent performance in a variety of applications.

LM139AW/883 Features

• High Common Mode Rejection Ratio (CMRR) and Power Supply Rejection Ratio (PSRR): The LM139AW/883 boasts a typical CMRR of 70dB and PSRR of 60dB, ensuring accurate and reliable operation in noisy environments.
• Low Input Offset Voltage: With a maximum input offset voltage of 2mV at 30V, the LM139AW/883 provides high precision and accuracy in comparison to similar models.
• Low Power Consumption: The device consumes a typical output current of 20mA and a maximum quiescent current of 2mA, making it ideal for battery-powered applications.
• Wide Supply Voltage Range: The LM139AW/883 operates on a single or dual supply voltage range of 5V to 30V, ±2.5V to 15V, providing flexibility in various applications.
• Low Input Bias Current: The maximum input bias current is 1000pA at 5V, reducing errors in high-impedance input applications.
• Hysteresis: The comparator features 10mV hysteresis, improving stability and reducing false triggering in noisy environments.

LM139AW/883 Applications

The LM139AW/883 is ideal for a wide range of applications, including:

1. Signal Comparison: Due to its high CMRR and PSRR, the LM139AW/883 is suitable for comparing signals in noisy environments.
2. Sensor Interfaces: The low input offset voltage and low power consumption make it an excellent choice for battery-powered sensor interfaces.
3. Data Acquisition Systems: The device's low propagation delay and high precision make it suitable for data acquisition systems requiring fast and accurate signal processing.
4. Automotive Applications: The LM139AW/883 can be used in automotive applications, such as engine control units and sensor interfaces, due to its low power consumption and wide supply voltage range.

Conclusion of LM139AW/883

The LM139AW/883 is a versatile, low power, low offset voltage quad comparator from Texas Instruments. Its high CMRR, PSRR, and low input offset voltage make it an excellent choice for applications requiring high precision and reliability. With a wide supply voltage range and low power consumption, the LM139AW/883 is suitable for a variety of applications, including signal comparison, sensor interfaces, data acquisition systems, and automotive applications. Its unique features and advantages over similar models make it a preferred choice for designers looking for a high-performance comparator.