LM393 -Low Power Low Offset Voltage Dual Comparator

LM393 - Low Power Low Offset Voltage Dual Comparator

The LM393 is a dual voltage comparator integrated circuit. It incorporates two independent comparators. The device operates from a single or dual power supply. A supply voltage range of 2 V to 36 V is supported. Current drain is consistently low, independent of the supply voltage. Open-collector outputs enable wired-AND configurations. The LM393 exhibits low input bias and offset characteristics. This supports precision sensing and control applications.

Specifications:

• Number of Comparators: Dual
• Supply Voltage Range: 2 V to 36 V
• Supply Current Drain (Typ): 0.4 mA per comparator
• Input Bias Current (Typ): 25 nA
• Input Offset Voltage (Typ): 2 mV
• Common-Mode Input Voltage Range: Includes Ground
• Differential Input Voltage Range: ±36 V
• Output Type: Open-Collector

Key features and benefits:

• Operates from single or dual power supplies
• Supply voltage range: 2 V to 36 V
• Supply current drain: 0.4 mA (Typ) per comparator
• Input bias current: 25 nA (Typ)
• Input offset voltage: 2 mV (Typ)
• Common-mode input voltage range includes ground
• Differential input voltage range: ±36 V
• Open-collector outputs for wired-AND configurations

Applications:

• Voltage level detection and threshold sensing
• Battery monitoring and power supply supervision
• Signal conditioning and waveform generation
• Industrial control and automation systems
• General-purpose comparator circuits

Frequently Asked Questions:

Q: What is the typical package type for the LM393?
A: The LM393 is commonly available in DIP-8, SOIC-8, and TSSOP-8 packages, though specific availability may vary.

Q: Can the LM393 operate with a single 3.3V power supply?
A: Yes, the LM393 operates from a single supply voltage as low as 2 V. A 3.3 V supply is within its specified range.

Q: How do the open-collector outputs function in a circuit?
A: Open-collector outputs require an external pull-up resistor to a positive voltage supply to define the high logic level. They can sink current when low.

Q: What is the maximum differential input voltage the LM393 can tolerate?
A: The LM393 can tolerate a differential input voltage range of ±36 V.

Package Includes:

*Image shown is a representation only.

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