LM293W

LM193W, LM293W, LM393W Low power dual voltage comparators Features ■ Wide single supply voltage range or dual supplies: +2 V to +36 V or ±1 V to ±18 V ■ Very low supply current (0.4 mA) independent of supply voltage (1 mW/comparator at +5 V) ■ Low input bias current: 25 nA typ ■ Low input offset current: ±5 nA typ ■ Low input offset voltage: ±1 mV typ ■ Input common-mode voltage range includes ground ■ Low output saturation voltage: 250 mV typ. (Io = 4 mA) ■ Differential input voltage range equal to the supply voltage ■ TTL, DTL, ECL, MOS, CMOS compatible outputs ■ ESD internal protection: 2 kV Description These devices consist of two independent low voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground even though operated from a single power supply voltage. All the pins are protected against electrostatic discharge up to 2 kV. As a consequence, the input voltages must not exceed the magnitude of VCC+ or VCC-. DIP8 (Plastic package) SO8 (Plastic micropackage) TSSOP8 (Thin shrink small outline package) Pin connections (Top view) 1 - Output 1 2 - Inverting input 1 3 - Non-inverting input 1 4 - VCC5 - Non-inverting input 2 6 - Inverting input 2 7 - Output 2 8 - VCC+ December 2008 Rev 2 1/15 www.st.com 15 Schematic diagram 1 Schematic diagram LM193W, LM29...