GENERAL DESCRIPTION

The ALD4302 is a monolithic high performance quad voltage comparator built with advanced silicon gate CMOS technology. It features very high typical input impedance of 1012Ω; low input bias current of 10pA; fast response time of 120ns; very low power dissipation of 150µA per comparator; and single +5V or dual ±5V power supply operation.

FEATURES

• Guaranteed to drive 200Ω loads

• Fanout of 30 LS TTL loads

• Low supply current of 150µA each comparator

• Extremely low input bias currents -- 10pA

• Virtually eliminates source impedance effects

• Low operating supply voltage of 3V to 12V

• Single +5V and dual supply ±5V operation

• High speed for both large and small signals - 120ns for TTL inputs and 400ns for 5mV overdrive

• CMOS, NMOS and TTL compatible

• Push-pull outputs

• High output sinking current -- 60mA

• Low supply current spikes

• High gain -- 100V/mV

APPLICATIONS

• MOSFET driver

• High source impedance voltage comparison circuits

• Multiple limit window comparator

• Power supply voltage monitor

• Photo-detector sensor circuit

• High speed LED driver

• Oscillators

• Battery operated instruments

• Remote signal detection

• Multiple relay drivers