STMicroelectronics LM293PT Dual Differential Comparator
The LM293PT from STMicroelectronics is a precision voltage comparator that has the capability to operate over a wide range of power supply voltages, from 2V to 36V on a single supply or ±1V to ±18V on dual supplies. This high-quality integrated circuit is designed for applications that require fast and accurate voltage comparison, such as control systems, oscillators, and level shifters.
Featuring two independent voltage comparators, the LM293PT is adept at comparing the voltage present at one of its inputs with the voltage at the other input. When the voltage at the non-inverting input (+) is higher than the inverting input (-), the output of the comparator is driven to a high state. Conversely, when the voltage at the inverting input (-) is higher than the non-inverting input (+), the output becomes low.
This device is characterized by its low input bias current, which minimizes the effect on the signal being measured, and its high input impedance, which ensures minimal loading on the input source. The LM293PT is also designed to have a fast response time, with a typical response time of 1.3 microseconds when driving a 5 mA load, making it suitable for high-speed applications.
The LM293PT is available in a TSSOP-8 package, which is suitable for space-constrained applications. The small footprint of the package allows for high-density mounting and is compatible with automated surface-mount assembly processes. Additionally, the device is specified for a wide temperature range of -40°C to +125°C, making it suitable for use in harsh environments.
Applications for the LM293PT are diverse, ranging from simple voltage level detection to complex feedback control systems. It is commonly used in battery chargers, power supply control circuits, and window comparators. The robustness and reliability of the LM293PT make it an excellent choice for designers looking for a dependable solution for their voltage comparison needs.
For further information, datasheets, and support, users can visit the STMicroelectronics website or contact their local ST sales office.
