Overview
The LM393N/NOPB, produced by Texas Instruments, is a low-power, low-offset voltage dual comparator. This device is part of the LMx93 series, designed to operate from a single power supply over a wide range of voltages, from 2.0 V to 36 V, or from dual supplies ranging from ±1.0 V to ±18 V. The LM393N/NOPB is known for its high precision, low power consumption, and compatibility with various logic systems, making it suitable for a variety of applications.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value |
|---|---|---|---|
| Supply Voltage Range | 2.0 V to 36 V | 2.0 V | 36 V |
| Supply Current | 0.4 mA (at V+=5 V) | 0.4 mA | 1.0 mA (at V+=36 V) |
| Input Offset Voltage | 5.0 mV | 1.0 mV | 5.0 mV |
| Input Bias Current | 25 nA | 25 nA | 100 nA |
| Input Offset Current | 5.0 nA | 3.0 nA | 25 nA |
| Input Common Mode Voltage Range | 0 to V+−1.5 V | 0 V | V+−1.5 V |
| Saturation Voltage | 250 mV (at ISINK≤4 mA) | 200 mV | 700 mV |
| Output Leakage Current | 1.0 μA | 1.0 μA | 1.0 μA |
| Operating Temperature Range | 0°C to 70°C | 0°C | 70°C |
Key Features
- Wide supply voltage range: 2.0 V to 36 V or ±1.0 V to ±18 V for dual supplies.
- Very low supply current drain: 0.4 mA, independent of supply voltage.
- Low input biasing current: 25 nA.
- Low input offset current: ±5 nA.
- Maximum offset voltage: ±3 mV.
- Input common-mode voltage range includes ground.
- Differential input voltage range equal to the power supply voltage.
- Low output saturation voltage: 250 mV at 4 mA.
- Output voltage compatible with TTL, DTL, ECL, MOS, and CMOS logic systems.
- Available in various packages, including SOIC and DSBGA.
Applications
- Battery-powered applications due to low power consumption.
- Industrial applications requiring high precision and low power drain.
- Limit comparators, simple analog-to-digital converters, pulse, squarewave, and time delay generators.
- Wide range VCO, MOS clock timers, multivibrators, and high voltage digital logic gates.
Q & A
- What is the supply voltage range for the LM393N/NOPB? The supply voltage range is from 2.0 V to 36 V or ±1.0 V to ±18 V for dual supplies.
- What is the typical supply current for the LM393N/NOPB? The typical supply current is 0.4 mA at V+=5 V.
- What is the input offset voltage for the LM393N/NOPB? The input offset voltage is typically 5.0 mV.
- What is the input bias current for the LM393N/NOPB? The input bias current is typically 25 nA.
- Can the LM393N/NOPB operate with a single power supply? Yes, it can operate with a single power supply from 2.0 V to 36 V.
- What are the compatible logic systems for the LM393N/NOPB output? The output is compatible with TTL, DTL, ECL, MOS, and CMOS logic systems.
- What are some common applications for the LM393N/NOPB? Common applications include battery-powered devices, industrial applications, limit comparators, and analog-to-digital converters.
- What is the operating temperature range for the LM393N/NOPB? The operating temperature range is from 0°C to 70°C.
- How does the LM393N/NOPB handle differential input voltage? The differential input voltage range equals the supply voltage range, and it can handle inputs up to 36 V without damage.
- What is the saturation voltage for the LM393N/NOPB? The saturation voltage is typically 250 mV at ISINK≤4 mA.
