LM339 / LM393 Comparators Family (44 parts in our catalog)
LM339 (quad), LM393 (dual), and LM311 (single) open-collector comparators. The classic comparator family used across hobbyist, educational, and industrial designs.
Sub-families
| Sub-family | Variants | Core | Max Speed | Features |
|---|---|---|---|---|
| HIGH PERFORMANCE | ||||
| LM311H | 1 | BJT single collector-emitter | 200ns response | HV HS PREC |
| GENERAL PURPOSE | ||||
| LM339N | 2 | BJT quad open-collector | 1.3 us response | LP HV ADC |
| LM393DR | 1 | BJT dual open-collector | 1.3 us response | LP HV LV |
| LM339DT | 1 | BJT quad open-collector | 1.3 us response | LP HV ADC |
| LM339DR | 1 | BJT quad open-collector | 1.3 us response | HV LP AUTO |
| LM393N | 1 | BJT dual open-collector | 1.3 us response | LP HV LV |
| LM2903N | 1 | BJT dual open-collector | 1.3 us Response Time | LP AUTO HV |
| LM2903DR2G | 1 | BJT dual open-collector | 1.3 us response | AUTO HV LV |
| LM2903PWR | 1 | BJT dual open-collector | 1.3 us | AUTO LV HV |
| LM2901PT | 1 | BJT quad open-collector | 1.3 us response time | AUTO HV LV |
| LM2901PWR | 1 | BJT quad open-collector | 1.3 us | AUTO HV LV |
| LM311P | 1 | BJT single with strobe | 200ns response | HV HS DTL TTL |
| LM339AN | 1 | BJT quad open-collector | 1.3 us response | HV LV OC |
| LM2901DR | 1 | BJT quad open-collector | 1.3 us response | AUTO HV LP |
| LM2901N | 2 | BJT quad open-collector | 1.3 us response time | LP HV AUTO |
| LM339BIDR | 1 | BJT quad open-collector | 0.3 us response | HV PREC AUTO |
| LM393ADT | 1 | Bipolar Dual Open-Collector | 1.3 us Response Time | LP HV LV |
| LM2903DT | 1 | BJT dual open-collector | 1.3 us response | LP HV AUTO |
| LM2903BIPWR | 1 | Bipolar dual open-collector | 0.3 us | AUTO HV LP |
| LM2903DR | 1 | BJT dual open-collector | 1.3 us response time | LP HV AUTO |
| LM311DR | 1 | BJT single open-collector | 200ns response | HS HV AUTO |
| LM339DRG4 | 1 | BJT quad open-collector | 1.3 us Response Time | HV ADC |
| LM393BIDDFRG4 | 1 | BJT dual open-collector | 1.3 us Response Time | LP LV HV |
| LM2903PT | 1 | BJT dual open-collector | 1.3 us response time | LP HV AUTO |
| LM393ST | 1 | BJT dual open-collector | 1.3 us response time | LP LV HV |
| LM393PT | 1 | BJT dual open-collector | 1.3 us response time | LP LV HV |
| LM339APT | 1 | BJT quad open-collector | 1.3 us response | LP HV LV |
| LM339PT | 1 | BJT quad open-collector | 1.3 us response time | LP HV LV |
| LM311N | 1 | BJT single open-collector | 200 ns response | HV HS PREC |
| LM339PWRG3 | 1 | BJT quad open-collector | 1.3 us response time | LP HV |
| LM393DR2G | 1 | BJT dual open-collector | 1.3 us response | LP HV LV |
| LM339DRE4 | 1 | BJT quad open-collector | 1.3 us response | HV LP AUTO |
| LM2903ST | 1 | Bipolar Dual Open-Collector | 1.3 us Response Time | LP AUTO HV LV |
| LM393PWRG3 | 1 | Bipolar Dual Open-Collector | 1.3 us Response Time | LP HV AUTO |
| LM2901D | 2 | BJT quad open-collector | 1.3 us response | HV AUTO |
| GENERAL PURPOSE AUTOMOTIVE | ||||
| LM2903VQPWRG4Q1 | 1 | BJT dual open-collector | 1.3 us response time | AUTO HV LP |
| LM2901QPWRQ1 | 1 | BJT quad open-collector | 1.3 us response time | AUTO HV LP |
| GENERAL PURPOSE PRECISION | ||||
| LM339ADR | 1 | BJT quad open-collector | 1.3 us response | PREC HV LV |
| AUTOMOTIVE GENERAL PURPOSE | ||||
| LM2903VQPWR | 1 | Bipolar Dual Open-Collector | 1.3 us Response Time | AUTO HV LP |
| LM2903BYDT | 1 | BJT dual open-collector | 1.3 us response time | LP AUTO HV |
| PRECISION GENERAL PURPOSE | ||||
| LM393ADR | 1 | BJT dual open-collector | 1.3 us response | PREC HV LP |
Popular Variants
Top variants from across the family, with specs that differentiate them.
| Part Number | Sub-family | Package | Output Type | Number of Elements | Temp Range | Current - Output (Typ) | Voltage - Input Offset (Max) | Stock |
|---|---|---|---|---|---|---|---|---|
| LM339N/NOPB | LM339N | DIP-14 | Open-Collector | 4 | -25degC ~ 85degC | 16mA | 5mV | 18,468 |
| LM2901D | LM2901D | SOIC-14 | Open-Collector | 4 | -40degC ~ 125degC | 20mA | 7mV | 16,260 |
| LM339N | LM339N | DIP-14 | Open-Collector | 4 | 0degC ~ 70degC | 20mA | 5mV | 31,301 |
| LM393DR | LM393DR | SOIC-8 | Open-Collector, Ra.. | 2 | 0degC ~ 70degC | 20mA | 5mV | 159,557 |
| LM339DT | LM339DT | SOIC-14 | CMOS, DTL, ECL, MO.. | 4 | 0degC ~ 70degC | 16mA | 5mV | 10,147 |
| LM393N/NOPB | LM393N | DIP-8 | Open-Collector, Ra.. | 2 | 0degC ~ 70degC | 16mA | 5mV | 18,056 |
| LM339DR | LM339DR | SOIC-14 | Open-Collector | 4 | 0degC ~ 70degC | 20mA | 5mV | 76,336 |
| LM2903N/NOPB | LM2903N | DIP-8 | Open-Collector, Ra.. | 2 | -40degC ~ 85degC | 16mA | 7mV | 9,754 |
| LM2901PT | LM2901PT | TSSOP-14 | CMOS, DTL, ECL, MO.. | 4 | -40degC ~ 125degC | 16mA | 7mV | 37,040 |
| LM2903PWR | LM2903PWR | TSSOP-8 | Open-Collector, Ra.. | 2 | -40degC ~ 125degC | 20mA | 7mV | 56,812 |
| LM2903DR2G | LM2903DR2G | SOIC-8 | Open-Collector, Ra.. | 2 | -40degC ~ 105degC | 16mA | 7mV | 287,777 |
| LM2901PWR | LM2901PWR | TSSOP-14 | Open-Collector | 4 | -40degC ~ 125degC | 20mA | 7mV | 172,813 |
