Overview
The LM139AJB is a comparator made by Texas Instruments in a CDIP-14 package with 14 pins. -18V~-1V、1V~18V -55℃~+125℃ 1.3us 25nA 25nA 2V~36V 2mV 800uA Four channels Open Collector Rail-to-Rail Input TTL、CMOS、MOS CDIP-14 Comparators.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM139AJB, from EasyEDA) and its footprint (EasyEDA_Cloud:CDIP-14_L20.0-W6.8-P2.54-LS7.8-BL, from EasyEDA), ready for a KiCad board. 11 are in stock at JLCPCB (part C3717420).
Symbol
Footprint
Parameters
12- Dual Supply
- -18V~-1V
- Ib - Input Bias Current
- 25nA
- Input Offset Current(Ios)
- 25nA
- Number of Channels
- Four channels
- Operating Temperature
- -55℃~+125℃
- Output Mode
- MOS
- Output Type
- Open Collector
- Propagation Delay Time
- 1.3us
- Quiescent Current
- 800uA
- Rail to Rail
- Rail-to-rail input
- Single Supply
- 2V~36V
- Vos - Input Offset Voltage
- 2mV
Order codes
2- LM139AJBLCSC C3717420
- LM139AJBLCSC C3717426
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | OUTPUT | Unspecified |
| 2 | OUTPUT1 | Unspecified |
| 3 | V+ | Unspecified |
| 4 | INPUT1- | Unspecified |
| 5 | INPUT1+ | Unspecified |
| 6 | INPUT2- | Unspecified |
| 7 | INPUT2+ | Unspecified |
| 8 | INPUT3- | Unspecified |
| 9 | INPUT3+ | Unspecified |
| 10 | INPUT4- | Unspecified |
| 11 | INPUT4+ | Unspecified |
| 12 | GND | Unspecified |
| 13 | OUTPUT4 | Output |
| 14 | OUTPUT3 | Output |
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Is there a KiCad symbol and footprint for the LM139AJB?
Yes. The symbol is EasyEDA_Cloud:LM139AJB and the footprint EasyEDA_Cloud:CDIP-14_L20.0-W6.8-P2.54-LS7.8-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM139AJB?
CDIP-14, with 14 pins. Its footprint is drawn on this page.
Where is the LM139AJB datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM139AJB?
JLCPCB lists it as part C3717420, with 11 in stock; the sellers' links on this page open their listings.
What can replace the LM139AJB?
Parts like it in the library: the LM139J/883 by Texas Instruments and the TLC139MJ by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
