GENERAL DESCRIPTION

The ALD2331A/ALD2331B/ALD2331 is a monolithic high performance dual precision voltage comparator built with advanced silicon gate EPAD® CMOS technology intended for high precision analog applications.

FEATURES

• Fanout of 30LS TTL loads

• Guaranteed to drive 200Ω loads

• Low supply current of 55µA typical

• Pinout of LM193 industry standard voltage comparators

• Extremely low input bias currents -- typically 10pA

• Virtually eliminates source impedance effects

• Low operating supply voltage of 3V to 10V

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

• High speed for both large and small level signals -- 300ns typical for TTL inputs

• CMOS, NMOS and TTL compatible

• Wired-OR open drain outputs

• High output sink current -- typically 50mA

• Low supply current spike

APPLICATIONS

• Simple precision reference voltage setting

• High source impedance voltage comparison circuits

• MOSFET driver

• Dual limit window comparator

• Power supply voltage monitor

• Photo-detector sensor circuit

• Relay or LED driver

• Oscillators

• Battery operated instruments

• Remote signal detection

BENEFITS

• Simple precision reference voltage setting

• On-chip input pre-amplifier and output buffers

• Precision voltage comparison without pre-amplifier

• Eliminates need for second power supply

• Wide range of pull-up resistor values