
Advanced Linear Devices
GENERAL DESCRIPTION
The ALD4302A/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 30LS TTL loads
• Low supply current of 150µA each comparator
• Extremely low input bias currents -- typically 10pA
• Virtually eliminates source impedance effects
• Low operating supply voltage of 4V to 10V
• 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 -- typically 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