Overview
The LM393M/NOPB is a dual differential input voltage comparator produced by Texas Instruments. It is part of the LMx93 and LM2903 family, designed to operate from a single power supply over a wide range of voltages. This component is particularly useful for applications requiring high precision and rapid switching, making it suitable for various analog and digital circuits. The LM393M/NOPB features low power consumption, low input bias current, and compatibility with multiple logic systems, including TTL, DTL, ECL, MOS, and CMOS.
Key Specifications
| Attribute | Value |
|---|---|
| Comparator Type | General Purpose |
| Mounting Type | Surface Mount |
| Package Type | SOIC |
| Power Supply Type | Dual, Single |
| Output Type | Open Collector |
| Number of Channels per Chip | 2 |
| Typical Response Time | 1.3µs |
| Pin Count | 8 |
| Typical Single Supply Voltage | 3 → 28 V |
| Dimensions | 4.9 x 3.9 x 1.45mm |
| Length | 4.9mm |
| Width | 3.9mm |
| Height | 1.45mm |
| Minimum Operating Temperature | 0 °C |
| Maximum Operating Temperature | +70 °C |
| Typical Dual Supply Voltage | ±12 V, ±15 V, ±3 V, ±5 V, ±9 V |
Key Features
- Wide supply voltage range: 2.0 V to 36 V, with single or dual supplies from ±1.0 V to ±18 V.
- Very low supply current drain of 0.4 mA, independent of supply voltage.
- Low input biasing current: 25 nA and 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.
- High precision comparators with reduced VOS drift over temperature.
- Suitable for battery operation due to low power consumption.
Applications
The LM393M/NOPB is versatile and can be used in a variety of applications, including:
- Limit comparators.
- Simple analog to digital converters.
- Pulse, squarewave, and time delay generators.
- Wide range VCO (Voltage-Controlled Oscillator).
- MOS clock timers and multivibrators.
- High voltage digital logic gates.
- Battery-powered applications due to its low power consumption.
Q & A
- What is the typical response time of the LM393M/NOPB?
The typical response time is 1.3µs. - What is the power supply voltage range for the LM393M/NOPB?
The power supply voltage range is from 2.0 V to 36 V for single supply and ±1.0 V to ±18 V for dual supplies. - What is the input biasing current of the LM393M/NOPB?
The input biasing current is 25 nA. - Is the LM393M/NOPB compatible with different logic systems?
Yes, it is compatible with TTL, DTL, ECL, MOS, and CMOS logic systems. - What is the maximum operating temperature of the LM393M/NOPB?
The maximum operating temperature is +70 °C. - Can the LM393M/NOPB operate from a single power supply?
Yes, it can operate from a single power supply over a wide range of voltages. - What is the typical supply current drain of the LM393M/NOPB?
The typical supply current drain is 0.4 mA, independent of the supply voltage. - Is the LM393M/NOPB suitable for battery-powered applications?
Yes, it is suitable due to its low power consumption. - What is the output type of the LM393M/NOPB?
The output type is open collector. - How many channels does the LM393M/NOPB have?
The LM393M/NOPB has two independently functioning channels.
