SPICE subcircuitLM393DRlm393
LM393 (dual comparator)
Two comparators with open-collector outputs (pull-up required), response time ~300 ns, no hysteresis. Pinout as in the datasheet.
Key data
- Category
- ICs
- Simulation model
- SPICE subcircuit
- Manufacturer part number
- LM393DR
- Reference prefix
- U
- Pins
- 8
- Land pattern
- SOIC-8_3.9x4.9mm_P1.27mm
Simulation model
The part is a small SPICE netlist (below), solved by the analog engine together with the rest of the circuit. Pin ids are the node names, {braces} are parameters.
SPICE netlist
U1 3 2 1 8 4 COMP TAU={TAU}
U2 5 6 7 8 4 COMP TAU={TAU}Pins 8
| Pin | Name | Use |
|---|---|---|
| 3 | IN1+Input pin | Comparator 1 non-inverting input |
| 2 | IN1−Input pin | Comparator 1 inverting input |
| 5 | IN2+Input pin | Comparator 2 non-inverting input |
| 6 | IN2−Input pin | Comparator 2 inverting input |
| 1 | OUT1Output pin | Open-collector output 1: pull-up resistor required |
| 7 | OUT2Output pin | Open-collector output 2: pull-up resistor required |
| 8 | VCCSupply pin | Supply 2–36 V: 100 nF to GND |
| 4 | GNDGround pin | Ground |
Parameters 1
Response time
TAUDefault300n s
PCB
Verified land pattern
SOIC-8_3.9x4.9mm_P1.27mm