LM392DR

The Texas Instruments LM392DR is a dual low power comparator integrated circuit. It features two independent channels, each with an open-collector/open-drain output type. This device operates over a wide power-supply voltage range, from 3 V to 32 V for single supply and ±1.5 V to ±16 V for dual supply.

Key electrical characteristics include a low supply-current drain that is essentially independent of supply voltage, typically 600 µA. It also boasts low input biasing current (50 nA), low input offset voltage (2 mV), and low input offset current (5 nA). The input common-mode voltage range includes ground, and the differential input voltage range equals the power-supply voltage.

Additional features include internal frequency compensation for unity gain, a large DC voltage gain of 100 dB, and a wide bandwidth of 1 MHz at unity gain. The output voltage swing is large, ranging from 0 V to V+ - 1.5 V. For comparator functions, it offers a low output saturation voltage of 250 mV at 4 mA, and its output voltage is compatible with all types of logic systems.

The LM392DR is available in various packages including PDIP, SOIC, and VSSOP. Its design advantages include eliminating the need for dual power supplies and allowing sensing at or near ground, making it suitable for a variety of electronic designs.