Skip to the content
PCBKitNew board
LM393D on a board, in 3D

LM393D

onsemi

-18V~-1V、1V~18V 0℃~+70℃ 1.3us 2 25nA 2V~36V 300ns 36V 400uA 5mV 5nA ESD protection TTL、CMOS SOIC-8 Comparators ROHS

JLCPCB basic
DatasheetJLCPCBLCSConsemi/LM393D
Category
Comparators
Package
SOIC-8
Pins
8

Overview

The LM393D is a comparator made by onsemi in a SOIC-8 package with 8 pins. -18V~-1V、1V~18V 0℃~+70℃ 1.3us 2 25nA 2V~36V 300ns 36V 400uA 5mV 5nA ESD protection TTL、CMOS SOIC-8 Comparators ROHS.

PCBKit's library has its KiCad symbol (Comparator:LM393, 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. 352,302 are in stock at JLCPCB (part C7955). 11 open-source boards in 10 repositories on GitHub use it.

Symbol

1-2+3
Comparator:LM393From KiCad's library

Footprint

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

From the datasheet

9
Supply, least
2 V · VCC, single supply recommended min · p. 1
Supply, most
36 V · VCC, single supply recommended max · p. 1
Supply, absolute maximum
36 V · VCC, single supply absolute max · p. 2
Works from
0 °C · LM393 operating ambient min · p. 2
Works up to
70 °C · LM393 operating ambient max · p. 2
Junction, hottest
150 °C · LM393 operating junction max · p. 2
Takes working
400 µA · VCC, both comparators, no load, 5 V, 25°C, typical · p. 3
Takes at most
2.5 mA · VCC, both comparators, no load, 30 V, max · p. 3
A pin gives at most
20 mA · Output sink current absolute max · p. 2

What it is and has

5
Comparators
2 independent precision voltage comparators · p. 1
Single supply range
2.0 Vdc to 36 Vdc · p. 1
Split supply range
±1.0 Vdc to ±18 Vdc · p. 1
Input common mode
Includes ground · p. 1
Input protection
ESD clamps · p. 1

Specifications

30
ParameterConditionsAs printedPage
Power Supply Voltage VCCSingle supply; split supply rating ±18 Vmax 36 V2
Input Differential Voltage VIDRmax 36 V2
Input Common Mode Voltage Range (Note 1) VICRFor supply voltages less than 36 V, absolute maximum input voltage equals supply voltagemin -0.3 · max 36 V2
Output Voltage VOmax 36 V2
Output Sink Current (Note 2) ISinkmax 20 mA2
Power Dissipation @ TA = 25°C PDTA = 25°Cmax 570 mW2
Derate above 25°C 1/RJAAbove 25°Cmax 5.7 mW/°C2
Operating Ambient Temperature Range TALM393min 0 · max 70 °C2
Maximum Operating Junction Temperature TJ(max)LM393max 150 °C2
Storage Temperature Range Tstgmin -65 · max 150 °C2
ESD Protection at any Pin (Note 4) VESDHuman Body Model; LM393max 1500 V2
ESD Protection at any Pin (Note 4) VESDMachine Model; LM393max 150 V2
Input Offset Voltage (Note 6) VIOLM393; VCC = 5.0 Vdc; TA = 25°C; typical and maximum are ± magnitudestyp 1 · max 5 mV3
Input Offset Voltage (Note 6) VIOLM393; VCC = 5.0 Vdc; Tlow ≤ TA ≤ Thigh; maximum is ± magnitudemax 9 mV3
Input Offset Current IIOLM393; VCC = 5.0 Vdc; TA = 25°C; typical and maximum are ± magnitudestyp 5 · max 50 nA3
Input Offset Current IIOLM393; VCC = 5.0 Vdc; Tlow ≤ TA ≤ Thigh; maximum is ± magnitudemax 150 nA3
Input Bias Current (Note 7) IIBLM393; VCC = 5.0 Vdc; TA = 25°Ctyp 20 · max 250 nA3
Input Bias Current (Note 7) IIBLM393; VCC = 5.0 Vdc; Tlow ≤ TA ≤ Thighmax 400 nA3
Input Common Mode Voltage Range (Note 7) VICRLM393; VCC = 5.0 Vdc; TA = 25°C; maximum VCC −1.5 Vmin 0 V3
Input Common Mode Voltage Range (Note 7) VICRLM393; VCC = 5.0 Vdc; Tlow ≤ TA ≤ Thigh; maximum VCC −2.0 Vmin 0 V3
Voltage Gain AVOLLM393; RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°Cmin 50 · typ 200 V/mV3
Large Signal Response TimeLM393; VCC = 5.0 Vdc; Vin = TTL Logic Swing, Vref = 1.4 Vdc; VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°Ctyp 300 ns3
Response Time (Note 9) tTLHLM393; VCC = 5.0 Vdc; VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C; 100 mV step, 5.0 mV overdrivetyp 1.3 s3
Output Sink Current ISinkLM393; VCC = 5.0 Vdc; Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc TA = 25°Cmin 6 · typ 16 mA3
Output Saturation Voltage VOLLM393; VCC = 5.0 Vdc; Vin ≥ 1.0 Vdc, Vin+ = 0, ISink ≤ 4.0 mA, TA = 25°Ctyp 150 · max 400 mV3
Output Saturation Voltage VOLLM393; VCC = 5.0 Vdc; Vin ≥ 1.0 Vdc, Vin+ = 0, ISink ≤ 4.0 mA; Tlow ≤ TA ≤ Thighmax 700 mV3
Output Leakage Current IOLLM393; VCC = 5.0 Vdc; Vin− = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA = 25°Ctyp 0.1 nA3
Output Leakage Current IOLLM393; VCC = 5.0 Vdc; Vin− = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc; Tlow ≤ TA ≤ Thighmax 1000 nA3
Supply Current ICCLM393; VCC = 5.0 Vdc; RL = ∞ Both Comparators, TA = 25°Ctyp 0.4 · max 1 mA3
Supply Current ICCLM393; RL = ∞ Both Comparators, VCC = 30 V; Tlow ≤ TA ≤ Thighmax 2.5 mA3

Pins, by the datasheet

8
1 Output A
Comparator A output. · p. 1
2 Inputs A
Comparator A inverting input. · p. 1
3 Inputs A
Comparator A noninverting input. · p. 1
4 GND
Ground. · p. 1
5 Inputs B
Comparator B noninverting input. · p. 1
6 Inputs B
Comparator B inverting input. · p. 1
7 Output B
Comparator B output. · p. 1
8 VCC
Supply voltage. · p. 1

Parameters

18
Current - Supply(Max)
2.5mA
Dual Supply
1V~18V
Features
ESD Protection
Ib - Input Bias Current
25nA
Input Offset Current(Ios)
5nA
Junction Temperature(Max)
150℃
Maximum Power Supply Range (Vdd-Vss)
36V
Number of Channels
2
Operating Temperature
0℃~+70℃
Output Current per Pin(Max)
20mA
Output Mode
TTL
Propagation Delay Time
300ns
Quiescent Current
400uA
Response Time (tr)
1.3us
Single Supply
2V~36V
Voltage - Supply
2V~36V
Voltage - Supply(Absolute Max)
36V
Vos - Input Offset Voltage
5mV

Order codes

1

Pinout

8
The pins of the LM393D
PinNameType
1—Open collector
2-Input
3+Input
4V-Power in
5+Input
6-Input
7—Open collector
8V+Power in

Open-source boards using it

All 11
  • 4 layers32.8 × 36.3 mmEsp32, the printed circuit board in 3D

    Esp32

    gdoor-org/gdoor

    Wifi adapter and bus protocol documentation for the Gira TKS Door System

    68 parts57GPL-3.0
  • 2 layers65.4 × 29 mmFinal project no connector, the printed circuit board in 3D

    Final project no connector

    Laurenx618/ENGR3430-Eclectronics-FinalProject

    This project is for the Eclectronics Final.

    69 parts2
  • 2 layers74.9 × 59.7 mmEMS BUS, the printed circuit board in 3D

    EMS BUS

    JakobThiessen/SmartHome_EMS-BUS-WI-FI-GATEWAY

    ESP32-EMS WiFi gateway for read and control EMS and Heatronic compatible devices such as boilers, thermostats, solar modules and heat pumps.

    51 parts1
  • 4 layers190 × 91 mmInv v1, the printed circuit board in 3D

    Inv v1

    reljamar/singlePhaseInverter

    A precursor project to a future three-phase inverter for driving synchronous motors

    160 parts1MIT
  • 2 layers105.7 × 107.5 mmNomobotSK, the printed circuit board in 3D

    NomobotSK

    edantoni96/NomobotSK

    NomobotSK is a educational robot for kids to learn programming and robotics.

    74 parts
  • 2 layers160 × 100 mmDC Electronic Load, the printed circuit board in 3D

    DC Electronic Load

    Jajaho/DC-Electronic-Load

    Digitally controlled dc electronic load.

    88 parts

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/onsemi/LM393D" title="LM393D in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/onsemi/LM393D.jpg" alt="LM393D" width="1200" height="900">
A picture that opens the part, for a README
[![LM393D](https://pcbkit.io/embed/parts/onsemi/LM393D.jpg?size=s)](https://pcbkit.io/parts/onsemi/LM393D)

Questions

Is there a KiCad symbol and footprint for the LM393D?

Yes. The symbol is Comparator:LM393 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 LM393D?

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

Where is the LM393D datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the LM393D?

JLCPCB lists it as part C7955, with 352,302 in stock; the sellers' links on this page open their listings.

What can replace the LM393D?

Parts like it in the library: the LM393BID by Texas Instruments, the LM393DT by STMicroelectronics, the LM2903BID by Texas Instruments and the LM293D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM393D?

11 boards in 10 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8