LM293A

双路差动比较器

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.

The LM193 device is characterized for operation from −55°C to 125°C. The LM293 and devices are characterized for operation from −25°C to 85°C. The LM393 and LM393A devices are characterized for operation from 0°C to 70°C. The LM2903 device is characterized for operation from −40°C to 125°C.

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Single-Supply or Dual Supplies

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Wide Range of Supply Voltage

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Maximum Rating: 2 V to 36 V

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Tested to 30 V: Non-V Devices

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Tested to 32 V: V-Suffix Devices

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Low Supply-Current Drain Independent of Supply

Voltage: 0.4 mA Typical Per Comparator

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Low Input Bias Current: 25 nA Typical

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Low Input Offset Current: 3 nA Typical LM139

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Low Input Offset Voltage: 2 mV Typical

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Common-Mode Input Voltage Range

Includes Ground

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Differential Input Voltage Range Equal to

Maximum-Rated Supply Voltage: ±36 V

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Low Output Saturation Voltage

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Output Compatible With TTL, MOS, and CMOS

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On Products Compliant to MIL-PRF-38535,

All Parameters Are Tested Unless Otherwise

Noted. On All Other Products, Production

Processing Does Not Necessarily Include

Testing of All Parameters.