GENERAL DESCRIPTION

The ALD2301A/ALD2301B/ALD2301C/ALD2301 is a monolithic high performance dual voltage comparator built with advanced silicon gate CMOS technology. It features very high typical input impedance of 1012?; low input bias current of 10pA; fast response time of 300ns; very low power dissipation of 55μA per comparator; and single (+5V) or dual (±5V) power supply operation.

The input voltage range includes ground, making this comparator ideal for low level signal detection with high source impedance. The outputs are open-drain configuration, allowing maximum application flexibility, such as wired-OR connection. The outputs can be connected to a higher external voltage than V+.

FEATURES

? Fanout of 30LS TTL loads

? Low supply current of 110μA typical

? Functional equivalent to LM193 industry standard 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 signal and low level signals -- 300ns typical for TTL inputs

? CMOS, NMOS and TTL compatible

? Wired-OR open drain outputs

? High output sinking current -- typically 60mA

? Low supply current spikes

APPLICATIONS

? High source impedance voltage comparison circuits

? Dual limit window comparator

? Power supply voltage monitor

? Photo-detector sensor circuit

? Relay or LED driver

? Oscillators

? Battery operated instruments

? Remote signal detection

BENEFITS

? Low power and high precision combination

? Built-in high input impedance buffer

? Built-in output driver with up to 60mA sink current