MAXIM MAX988EXK

The MAX987/MAX988/MAX991/MAX992/MAX995/ MAX996 single/dual/quad micropower comparators feature low-voltage operation and rail-to-rail inputs and outputs. Their operating voltage ranges from +2.5V to +5.5V, making them ideal for both 3V and 5V systems. These comparators also operate with ±1.25V to ±2.75V dual supplies. They consume only 48μA per comparator while achieving a 120ns propagation delay. Input bias current is typically 1.0pA, and input offset voltage is typically 0.5mV. Internal hysteresis ensures clean output switching, even with slow-moving input signals. The output stage’s unique design limits supply-current surges while switching, virtually eliminating the supply glitches typical of many other comparators. The MAX987/MAX991/MAX995 have a push-pull output stage that sinks as well as sources current. Large internal output drivers allow rail-to-rail output swing with loads up to 8mA. The MAX988/MAX992/MAX996 have an open-drain output stage that can be pulled beyond VCC to 6V (max) above VEE. These open-drain versions are ideal for level translators and bipolar to singleended converters. The single MAX987/MAX988 are available in tiny 5-pin SC70 packages, while the dual MAX991/MAX992 are available in ultra-small 8-pin SOT23 and μMAX packages.

• 120ns Propagation Delay
• 48μA Quiescent Supply Current
• +2.5V to +5.5V Single-Supply Operation
• Common-Mode Input Voltage Range Extends 250mV Beyond the Rails
• Push-Pull Output Stage Sinks and Sources 8mA Current (MAX987/MAX991/MAX995)
• Open-Drain Output Voltage Extends Beyond VCC (MAX988/MAX992/MAX996)
• Unique Output Stage Reduces Output Switching Current, Minimizing Overall Power Consumption
• 100μA Supply Current at 1MHz Switching Frequency
• No Phase Reversal for Overdriven Inputs
• Available in Space-Saving Packages: 5-Pin SOT23 (MAX987/MAX988) 8-Pin μMAX (MAX991/MAX992)

• Portable/Battery-Powered Systems
• Threshold Detectors/Discriminators
• Mobile Communications
• Ground/Supply Sensing
• Zero-Crossing Detectors
• IR Receivers
• Window Comparators
• Digital Line Receivers
• Level Translators