## Summary of LM193/A/293/A/393/A Low-Power Voltage Comparator Datasheet Information:

This document provides detailed specifications and characteristics for the LM193 series of low-power voltage comparators. Here's a breakdown of the key information:

1. Core Functionality:

️· Purpose: These are versatile, low-power, dual comparators designed for voltage comparison applications.
️· Configuration: Available in various packages and can operate as single, dual, or quad comparators.

2. Electrical Characteristics (Key Parameters):

️· Supply Voltage: Can operate with a supply voltage ranging from 5V to 30V.
️· Input Voltage Range: Positive input excursions can exceed the power supply level by 17V. However, input voltage must not be lower than -0.3V DC.
️· Input Bias Current: PNP input stage results in output current.
️· Output Characteristics: Output switches approximately to 1.4V DC.
️· Response Time: Specified for a 100mV input step with a 5mV overdrive, and is around 300ns.
️· Saturation Voltage: The comparator will saturate around 1.4V with a 5mV overdrive.

3. Important Notes & Considerations:

️· Input Protection: Inputs can withstand voltages beyond the supply rails (up to 17V), but limiting resistors are recommended for voltages exceeding the positive supply.
️· Input Voltage Limits: Do not let the input voltage go more negative than -0.3V.
️· Input Current Direction: Due to the PNP input stage, the input current is *out* of the IC.
️· Overdrive: Response time is affected by the amount of overdrive applied to the input signal.

4. Typical Performance Characteristics:

️· The document includes graphs showing typical behavior of the comparator in various operating conditions, including:
- Input Offset Voltage vs. Temperature
- Input Bias Current vs. Temperature
- Saturation Voltage vs. Input Common-Mode Voltage
- Response Time vs. Input Step and Overdrive

5. Equivalent Circuit:

️· A schematic of the internal equivalent circuit is provided.

In essence, the LM193 series offers a balance of low power consumption, wide supply voltage range, and decent speed for general-purpose voltage comparison applications.