模拟比较器 10mV Open Drain Drvr
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 1012Ω; 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
