The HA-4900 series are monolithic, quad, precision comparators offering fast response time, low offset voltage, low offset current and virtually no channel-to-channel crosstalk for applications requiring accurate, high speed, signal level detection. These comparators can sense signals at ground level while being operated from either a single +5V supply (digital systems) or from dual supplies (analog networks) up to ±15V. The HA-4900 series contains a unique current driven output stage which can be connected to logic system supplies (VLOGIC+ and VLOGIC-) to make the output levels directly compatible (no external components needed) with any standard logic or special system logic levels. In combination analog/digital systems, the design employed in the HA-4900 series input and output stages prevents troublesome ground coupling of signals between analog and digital portions of the system.

FEATUREs
• Fast Response Time . . . . . . . . . . . . . . . . . . . . . . . . 130ns
• Low Offset Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 2.0mV
• Low Offset Current . . . . . . . . . . . . . . . . . . . . . . . . . . .10nA
• Single or Dual Voltage Supply Operation
• Selectable Output Logic Levels
• Active Pull-Up/Pull-Down Output Circuit. No External Resistors Required

APPLICATIONs
• Threshold Detector
• Zero Crossing Detector
• Window Detector
• Analog Interfaces for Microprocessors
• High Stability Oscillators
• Logic System Interfaces