Complaint
The LM2903 is a dual differential input voltage comparator designed for a single power supply operation from a wide range of voltage ranges. The common mode input voltage range includes ground, and these devices have an open circuit assembly output.
These devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies also is possible as long as the difference between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.
1.Pin diagram:
2.Recommended Operating Conditions:
over operating free-air temperature range (unless otherwise noted)
3.Electrical Characteristics:
over operating free-air temperature range (unless otherwise noted)
4.Schematic (Each Comparator) :
• Wide Single-Supply Range: 2.0 Vdc to 36 Vdc
• Split-Supply Range: ±1.0 Vdc to ±18 Vdc
• Very Low Current Drain Independent of Supply Voltage: 0.4 mA
• Low Input Bias Current: 25 nA
• Low Input Offset Current: 5.0 nA
• Low Input Offset Voltage: 2.0 mV (max) LM393A
5.0 mV (max) LM293/393
• Input Common Mode Range to Ground Level
• Differential Input Voltage Range Equal to Power Supply Voltage
• Output Voltage Compatible with DTL, ECL, TTL, MOS, and CMOS Logic
Levels
• ESD Clamps on the Inputs Increase the Ruggedness of the Device
without Affecting Performance
• Sweeping robot
• Single phase UPS
• Server PSU
• Wireless power tool
• Wireless infrastructure
• Electrical
• Building automation
• Factory automation and control
• motor driver
• Information Entertainment System and Instrumentation Group
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