Product Summary

The LM311D is a single high-speed voltage comparator. The LM311D is designed to operate from a wide range of power-supply voltages, including ±15-V supplies for operational amplifiers and 5-V supplies for logic systems. The output levels are compatible with most TTL and MOS circuits. The LM311D is capable of driving lamps or relays and switching voltages up to 50 V at 50mA. All inputs and outputs can be isolated from system ground. The outputs can drive loads referenced to ground, VCC+ or VCC–. Offset balancing and strobe capabilities are available, and the outputs can be wire-OR connected. If the strobe is low, the output is in the off state, regardless of the differential input.

Parametrics

LM311D absolute maximum ratings: (1)Supply voltage: VCC+: 18 V; VCC-: –18 V; VCC+ – VCC-: 36 V; (2)Differential input voltage, VID: ±30 V; (3)Input voltage, VI (either input: ±15 V; (4)Voltage from emitter output to VCC–: 30 V; (5)Voltage from collector output to VCC–: 40 V; (6)Duration of output short circuit: 10 s; (7)Package thermal impedance, θJA: 97℃/W; (8)Operating virtual junction temperature, TJ: 150℃; (9)Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: 260℃; (10)Storage temperature range, Tstg: –65℃ to 150℃.

Features

LM311D features: (1) Fast Response Times; (2)Strobe Capability; (3)Maximum Input Bias Current: 300nA; (4)Maximum Input Offset Current: 70nA; (5)Can Operate From Single 5-V Supply; (6)Available in Q-Temp Automotive: High-Reliability Automotive Applications; Configuration Control/Print Support; Qualification to Automotive Standards.

Diagrams

LM311D pin connection 

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM311DE4
LM311DE4

Texas Instruments

Comparator ICs Single Strobed Differential

Data Sheet

0-1: $0.39
1-25: $0.24
25-100: $0.21
100-250: $0.18
LM311DG
LM311DG

ON Semiconductor

Comparator ICs 5-30V SGL Comparator Commercial Temp

Data Sheet

0-1: $0.24
1-25: $0.20
25-100: $0.14
100-500: $0.12
LM311DG4
LM311DG4

Texas Instruments

Comparator ICs Single Strobed Differential

Data Sheet

0-1: $0.39
1-25: $0.24
25-100: $0.21
100-250: $0.18
LM311DR
LM311DR

Texas Instruments

Comparator ICs Differential w/Strob

Data Sheet

0-1: $0.28
1-25: $0.18
25-100: $0.15
100-250: $0.13
LM311DR2
LM311DR2

ON Semiconductor

Comparator ICs 5-30V SGL Comparator

Data Sheet

Negotiable 
LM311DR2G
LM311DR2G

ON Semiconductor

Comparator ICs 5-30V SGL Comparator Commercial Temp

Data Sheet

0-1: $0.32
1-25: $0.24
25-100: $0.20
100-500: $0.15
LM311DRE4
LM311DRE4

Texas Instruments

Comparator ICs Single Strobed Differential

Data Sheet

0-1: $0.24
1-25: $0.19
25-100: $0.16
100-250: $0.14
LM311DT
LM311DT

STMicroelectronics

Comparator ICs Single GP Voltage

Data Sheet

0-1: $0.26
1-10: $0.17
10-100: $0.14
100-250: $0.12