STMicroelectronics LM339DTDJE Low Power Quad Voltage Comparators

The LM339DTDJE is a quad voltage comparator integrated circuit from STMicroelectronics, designed for applications requiring multiple voltage level detections. This precision device is engineered to operate over a wide range of supply voltages, from a single 2V to 36V or dual supplies of ±1V to ±18V, making it incredibly versatile for various electronic circuits.

Each of the four independent comparators in the LM339DTDJE is designed to accurately compare two input voltages and provide a digital output to indicate which input is higher. This makes it an ideal choice for voltage monitoring, level shifting, and signal conversion applications in both consumer and industrial products.

The device features a typical low input bias current of 25 nA, which is advantageous for energy-sensitive designs. Moreover, the input common-mode voltage range includes ground, which allows for direct sensing near ground without requiring level shifting. The low input offset voltage of 2 mV and offset current of 5 nA ensure high accuracy in the comparison process.

The outputs of the LM339DTDJE are open-collector, which permits wired-AND connections and the possibility to connect outputs to achieve logic functions. These outputs can be connected to other open-collector outputs to achieve wired-AND relationships. The open-collector design also allows for the direct drive of loads in a high-side configuration, with external pull-up resistors to a desired voltage level.

With its low power consumption and wide operating temperature range of -40°C to +105°C, the LM339DTDJE is well-suited for control systems, limit comparators, simple analog to digital converters, pulse, square wave and time delay generators, and many other design applications where precision voltage comparison is required.

The device is offered in a TSSOP-14 package, which ensures a compact footprint on printed circuit boards. This, combined with its robust feature set, makes the LM339DTDJE a reliable and efficient solution for designers looking to integrate multiple voltage comparators into their systems.

Overall, the LM339DTDJE from STMicroelectronics is a high-performance, low-power solution that offers design flexibility and reliability for a wide array of electronic applications.