Quad Comparator is an excellent component to have in your parts bin. It is extremely versatile can can be used for basic inverting and non-inverting amplifiers.
These devices consist of four independent precision voltage comparators with an offset voltage specifications as low as 2mV max for LM339A
. All these comparators were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible.
With a wide single supply or dual supply voltage range up to +36V and TTL and CMOS compatible outputs, it can be applied to almost any circuit with few external components.
The LM339 is rated for a temperature range of 0°C, +70°C. If a wider temperature range is needed. the LM239 or LM139 can be substituted giving a maximum temperature range of -55°C, +125°C.
Labels: analog, datasheet, lm339, lm339a