ams OSRAM

AS1972-T  

Linear Comparators

AS1972-T Description

The AS1972-T is a general-purpose linear comparator from ams OSRAM, designed to deliver reliable performance in a wide range of applications. This IC comparator is housed in an 8MSOP package and is suitable for surface-mount applications. It features two comparator elements, each offering a balanced combination of high performance and low power consumption. The AS1972-T is specified to operate with a supply voltage range of 2.5V to 5.5V for single supply and ±1.25V to ±2.75V for dual supply, making it versatile for various power configurations.

AS1972-T Features

• High CMRR and PSRR: The AS1972-T boasts a typical common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) of 80dB. This high level of rejection ensures that the comparator maintains accurate output even in the presence of noise and power supply variations.
• Low Propagation Delay: With a maximum propagation delay of 420ns, the AS1972-T provides fast response times, making it suitable for applications requiring rapid signal processing.
• Low Input Offset Voltage: The maximum input offset voltage of 6mV at 5.5V ensures high accuracy in signal comparison, minimizing errors in critical applications.
• Low Input Bias Current: The maximum input bias current of 1pA at 5.5V minimizes loading effects on the input signals, preserving signal integrity.
• Low Quiescent Current: The AS1972-T operates with a maximum quiescent current of 32µA, contributing to energy efficiency and making it suitable for low-power applications.
• Hysteresis: The comparator offers ±3mV of hysteresis, which helps in stabilizing the output and preventing oscillations in noisy environments.
• Packaging and Mounting: The AS1972-T is available in a Tape & Reel (TR) package, making it easy to handle and integrate into surface-mount designs.
• Regulatory Compliance: The AS1972-T is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations and standards.
• Moisture Sensitivity: With a moisture sensitivity level (MSL) of 1 (unlimited), the AS1972-T is suitable for a wide range of environmental conditions without requiring special handling during assembly.

AS1972-T Applications

The AS1972-T is ideal for a variety of applications where general-purpose signal comparison is required. Its low power consumption and high performance make it suitable for:

• Analog-to-Digital Conversion: Used in ADC circuits to compare analog signals against reference levels, ensuring accurate digital output.
• Signal Processing: Ideal for applications where rapid signal comparison and processing are necessary, such as in control systems and instrumentation.
• Power Management: The low quiescent current and high CMRR make it suitable for power management circuits where efficiency and accuracy are critical.
• Consumer Electronics: The AS1972-T can be used in consumer electronics for signal comparison tasks, contributing to the overall performance and reliability of the device.
• Industrial Control: In industrial applications, the AS1972-T can be used for monitoring and controlling various parameters, ensuring precise and reliable operation.

Conclusion of AS1972-T

The AS1972-T from ams OSRAM is a robust and versatile general-purpose linear comparator that offers a combination of high performance and low power consumption. Its features, such as high CMRR and PSRR, low propagation delay, and low input offset voltage, make it suitable for a wide range of applications. While the AS1972-T is now obsolete, it remains a reliable choice for existing designs and can be considered for new applications where its unique features and performance benefits are required.

AS1972-T Documents

Download datasheets and manufacturer documentation for AS1972-T