ON Semiconductor LM339DG Quad Differential Comparator

The LM339DG from ON Semiconductor is a high-performance quad differential comparator designed to operate from a single power supply over a wide range of voltages. It can also be operated from dual supplies for systems that require a broader input signal range. The device features four independent voltage comparators that directly interface with TTL, CMOS, and other logic types.

Constructed with bipolar processing technology, the LM339DG ensures precision voltage comparison and output switching. Each comparator has been designed to correctly operate with a common-mode input voltage range that extends to the negative supply rail. This feature is particularly useful in single-supply operations, as it provides the flexibility to handle input signals that may go to ground (0V).

The LM339DG is widely used in various applications, including limit comparators, simple analog to digital converters, pulse, square wave and time delay generators, wide range VCO; MOS clock timers; multivibrators and high voltage digital logic gates. Its versatility makes it suitable for consumer electronics, automotive industries, and industrial control systems.

Key features of the LM339DG include:

• Supply voltage range from 2V to 36V for single supply and ±1V to ±18V for dual supply operations.
• Low supply current drain independent of the supply voltage, which is ideal for battery-powered applications.
• Low input biasing current and low input offset current, which enhance accuracy.
• Low output saturation voltage, which is compatible with most TTL and MOS circuits.
• Offset voltage null capability that allows for fine-tuning of the comparator.
• Output compatible with RTL, DTL, TTL, MOS, and CMOS logic systems.

The device is packaged in a SOIC-14 (Small Outline Integrated Circuit) package, which is ideal for space-constrained applications. The LM339DG is characterized for operation from 0°C to 70°C, making it reliable for use in a wide range of environmental conditions.

With its combination of versatility, reliability, and compatibility with various logic types, the ON Semiconductor LM339DG stands out as a robust solution for complex electronic systems requiring accurate voltage comparison and control.