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LM311D

Texas Instruments

0℃~+70℃ 1 165ns 250nA 36V 5V~30V 7.5mA 7.5mV Offset voltage nulling、Enable/shutdown function Open Collector TTL、CMOS ±15V SOIC-8 Comparators ROHS

Extended
DatasheetJLCPCBLCSCti/LM311D
Category
Comparators
Package
SOIC-8
Pins
8

Overview

The LM311D is a comparator made by Texas Instruments in a SOIC-8 package with 8 pins. 0℃~+70℃ 1 165ns 250nA 36V 5V~30V 7.5mA 7.5mV Offset voltage nulling、Enable/shutdown function Open Collector TTL、CMOS ±15V SOIC-8 Comparators ROHS.

PCBKit's library has its KiCad symbol (Comparator:LM311, from KiCad's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 59,845 are in stock at JLCPCB (part C12597). 5 open-source boards in 3 repositories on GitHub use it.

Symbol

GND1+2-3V-4BAL5STRB67V+8
Comparator:LM311From KiCad's library

Footprint

12345678
Package_SO:SOIC-8_3.9x4.9mm_P1.27mmFrom KiCad's library

From the datasheet

10
Supply, least
3.5 V · VCC+ – VCC–, recommended operating min · p. 4
Supply, most
30 V · VCC+ – VCC–, recommended operating max · p. 4
Supply, absolute maximum
36 V · VCC+ – VCC–, absolute max · p. 4
Works from
0 °C · LM311 operating free-air temperature min · p. 4
Works up to
70 °C · LM311 operating free-air temperature max · p. 4
Junction, hottest
150 °C · Operating virtual-junction temperature max · p. 4
Takes working
9.2 mA · sum of typical VCC+ and VCC– supply-current magnitudes, ±15 V, no load, 25°C · p. 6
Junction to air (D (SOIC))
114.3 K/W · Junction-to-ambient thermal resistance · p. 5
Junction to case (D (SOIC))
60.7 K/W · Junction-to-case (top) thermal resistance · p. 5
Junction to board (D (SOIC))
54.5 K/W · Junction-to-board thermal resistance · p. 5

What it is and has

5
Response time
165 ns · p. 1
Strobe
Strobe capability · p. 1
Input bias current
300 nA maximum · p. 1
Input offset current
70 nA maximum · p. 1
Single-supply operation
5 V · p. 1

Specifications

37
ParameterConditionsAs printedPage
Supply voltageVCC+; relative to midpoint between VCC+ and VCC–max 18 V4
Supply voltageVCC–; relative to midpoint between VCC+ and VCC–max -18 V4
Supply voltageVCC+ – VCC–max 36 V4
Differential input voltage VIDIN+ with respect to IN–; ±30 Vmax 30 V4
Input voltage (either input) VI±15 V; magnitude must not exceed supply magnitudemax 15 V4
Voltage from emitter output to VCC–max 30 V4
Voltage from collector output to VCC–LM311max 40 V4
Duration of output short circuit to groundmax 10 s4
Operating virtual-junction temperature TJmax 150 °C4
Lead temperature 1,6 mm (1/16 inch) from case, 60 sD packagemax 260 °C4
Storage temperature Tstgmin -65 · max 150 °C4
Electrostatic discharge V(ESD)Human body model (HBM), per ANSI/ESDA/JEDEC JS-001; ±500 Vmax 500 V4
Electrostatic discharge V(ESD)Charged-device model (CDM), per JEDEC specification JESD22-C101; ±750 Vmax 750 V4
Supply voltage VCC+ – VCC–min 3.5 · max 30 V4
Operating free-air temperature range TALM311min 0 · max 70 °C4
Junction-to-ambient thermal resistance RθJALM311, D (SOIC), 8 pinstyp 114.3 °C/W5
Junction-to-case (top) thermal resistance RθJC(top)LM311, D (SOIC), 8 pinstyp 60.7 °C/W5
Junction-to-board thermal resistance RθJBLM311, D (SOIC), 8 pinstyp 54.5 °C/W5
Junction-to-top characterization parameter ψJTLM311, D (SOIC), 8 pinstyp 17.4 °C/W5
Junction-to-board characterization parameter ψJBLM311, D (SOIC), 8 pinstyp 54 °C/W5
Input offset voltage VIOLM311; VCC± = ±15 V; TA = 25°C; see note (3)typ 2 · max 7.5 mV6
Input offset voltage VIOLM311; VCC± = ±15 V; full range, 0°C to 70°C; see note (3)max 10 mV6
Input offset current IIOLM311; VCC± = ±15 V; TA = 25°C; see note (3)typ 6 · max 50 nA6
Input offset current IIOLM311; VCC± = ±15 V; full range, 0°C to 70°C; see note (3)max 70 nA6
Input bias current IIBLM311; VCC± = ±15 V; 1 V ≤ VO ≤ 14 V; TA = 25°Ctyp 100 · max 250 nA6
Input bias current IIBLM311; VCC± = ±15 V; 1 V ≤ VO ≤ 14 V; full range, 0°C to 70°Cmax 300 nA6
Low-level strobe current IIL(S)LM311; VCC± = ±15 V; V(strobe) = 0.3 V; VID ≤ –10 mV; TA = 25°Ctyp -3 mA6
Common-mode input-voltage range VICRLM311; VCC± = ±15 V; lower range; full range, 0°C to 70°Ctyp -14.7 · max -14.5 V6
Common-mode input-voltage range VICRLM311; VCC± = ±15 V; upper range; full range, 0°C to 70°Cmin 13 · typ 13.8 V6
Large-signal differential-voltage amplification AVDLM311; VCC± = ±15 V; 5 V ≤ VO ≤ 35 V; RL = 1 kΩ; TA = 25°Cmin 40 · typ 200 V/mV6
High-level (collector) output leakage current IOHLM311; VCC± = ±15 V; VID = 5 mV; VOH = 35 V; TA = 25°Ctyp 0.2 · max 50 nA6
Low-level (collector-to-emitter) output voltage VOLLM311; VCC± = ±15 V; IOL = 50 mA; VID = –10 mV; TA = 25°Ctyp 0.75 · max 1.5 V6
Low-level (collector-to-emitter) output voltage VOLLM311; VCC+ = 4.5 V; VCC– = 0 V; IOL = 8 mA; VID = –10 mV; full range, 0°C to 70°Ctyp 0.23 · max 0.4 V6
Supply current from VCC+ output low ICC+LM311; VCC± = ±15 V; VID = –10 mV; no load; TA = 25°Ctyp 5.1 · max 7.5 mA6
Supply current from VCC– output high ICC–LM311; VCC± = ±15 V; VID = 10 mV; no load; TA = 25°Ctyp -4.1 · max -5 mA6
Response time, low-to-high-level outputLM311; VCC± = ±15 V; TA = 25°C; RC = 500 Ω to 5 V; CL = 5 pF; 100-mV input step with 5-mV overdrivetyp 115 ns6
Response time, high-to-low-level outputLM311; VCC± = ±15 V; TA = 25°C; RC = 500 Ω to 5 V; CL = 5 pF; 100-mV input step with 5-mV overdrivetyp 165 ns6

Pins, by the datasheet

8
1 EMIT OUT
Output emitter comparator. · p. 3
2 IN+
Noninverting comparator. · p. 3
3 IN–
Inverting input comparator. · p. 3
4 VCC–
Negative supply. · p. 3
5 BALANCE
Balance. · p. 3
6 BAL/STRB
Strobe. · p. 3
7 COL OUT
Output collector comparator. · p. 3
8 VCC+
Positive supply. · p. 3

Ordering codes, by the datasheet

16
LM311D
SOIC (D), 8 pins · 75 per tube; 0 to 70°C · p. 25
LM311D.A
SOIC (D), 8 pins · 75 per tube; 0 to 70°C · p. 25
LM311DR
SOIC (D), 8 pins · 2500 per large tape and reel; 0 to 70°C · p. 25
LM311DR.A
SOIC (D), 8 pins · 2500 per large tape and reel; 0 to 70°C · p. 25
LM311DRG4
SOIC (D), 8 pins · Obsolete; 0 to 70°C · p. 25
LM311P
PDIP (P), 8 pins · 50 per tube; 0 to 70°C · p. 25
LM311P.A
PDIP (P), 8 pins · 50 per tube; 0 to 70°C · p. 25
LM311PE4
PDIP (P), 8 pins · 50 per tube; 0 to 70°C · p. 25
LM311PSR
SO (PS), 8 pins · 2000 per large tape and reel; 0 to 70°C · p. 25
LM311PSR.A
SO (PS), 8 pins · 2000 per large tape and reel; 0 to 70°C · p. 25
LM311PW
TSSOP (PW), 8 pins · 150 per tube; 0 to 70°C · p. 25
LM311PW.A
TSSOP (PW), 8 pins · 150 per tube; 0 to 70°C · p. 25
LM311PWG4
TSSOP (PW), 8 pins · 150 per tube; 0 to 70°C · p. 25
LM311PWR
TSSOP (PW), 8 pins · 2000 per large tape and reel; 0 to 70°C · p. 25
LM311PWR.A
TSSOP (PW), 8 pins · 2000 per large tape and reel; 0 to 70°C · p. 25
LM311PWRG4
TSSOP (PW), 8 pins · 2000 per large tape and reel; 0 to 70°C · p. 25

Parameters

18
Dual Supply
±15V
Features
Enable/shutdown function
Ib - Input Bias Current
250nA
Junction Temperature(Max)
150℃
Maximum Power Supply Range (Vdd-Vss)
36V
Number of Channels
Single-channel
Operating Temperature
0℃~+70℃
Output Mode
TTL
Output Type
Open Collector
Propagation Delay Time
165ns
Quiescent Current
9.2mA
Single Supply
5V~30V
Thermal Resistance(Junction to Ambient)
114.3℃/W
Thermal Resistance(Junction to Board)
54.5℃/W
Thermal Resistance(Junction to Case)
60.7℃/W
Voltage - Supply
3.5V~30V
Voltage - Supply(Absolute Max)
36V
Vos - Input Offset Voltage
7.5mV

Order codes

3

Pinout

8
The pins of the LM311D
PinNameType
1GNDPassive
2+Input
3-Input
4V-Power in
5BALInput
6STRBInput
7—Open collector
8V+Power in

Open-source boards using it

All 5
  • 2 layers20 × 128.5 mmSk107-comparator, the printed circuit board in 3D

    Sk107-comparator

    mirdej/synkie

    The Synkie is a modular open source analog video processor, developed by Michael Egger, Max Egger and Flo Kaufmann

    47 parts47
  • 2 layers110.7 × 40.6 mmSK115-4fachmodul c, the printed circuit board in 3D

    SK115-4fachmodul c

    mirdej/synkie

    The Synkie is a modular open source analog video processor, developed by Michael Egger, Max Egger and Flo Kaufmann

    43 parts47
  • 2 layers20 × 128.5 mmSk119-boolean, the printed circuit board in 3D

    Sk119-boolean

    mirdej/synkie

    The Synkie is a modular open source analog video processor, developed by Michael Egger, Max Egger and Flo Kaufmann

    45 parts47
  • 2 layers65 × 48 mmBarePi PidiMet, the printed circuit board in 3D

    BarePi PidiMet

    Panda381/BarePi

    Modular Microchip Kit

    44 parts4

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Questions

Is there a KiCad symbol and footprint for the LM311D?

Yes. The symbol is Comparator:LM311 and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM311D?

SOIC-8, with 8 pins. Its footprint is drawn on this page.

Where is the LM311D datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the LM311D?

JLCPCB lists it as part C12597, with 59,845 in stock; the sellers' links on this page open their listings.

What can replace the LM311D?

Parts like it in the library: the LM393D by onsemi, the LM393BID by Texas Instruments, the LM393DT by STMicroelectronics and the LM2903BID by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM311D?

5 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8