

Overview
The ISO7420D is a digital Isolator made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+105℃ 0 1Mbps 2 2500 3.15V~5.25V 3.15V~5.25V 50kV/us 9ns Fail-safe output、Multi-voltage domain interface High Level SOIC-8 Digital Isolators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:XLISO7220BDR, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C182075). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Parameters
12- CMTI(kV/us)
- 50kV/us
- Data Rate(Max)
- 1Mbps
- Default Output
- High Level
- Features
- Fail-safe output, Multi-voltage domain interface
- Isolation Voltage(Vrms)
- 2500
- Number of Channels
- 2
- Number of Forward Channels
- 2
- Number of Reverse Channels
- 0
- Operating Temperature
- -40℃~+105℃
- Propagation Delay(tpd)
- 9ns
- Voltage - Supply(VCCA)
- 3.15V~5.25V
- Voltage - Supply(VCCB)
- 3.15V~5.25V
Order codes
2- ISO7420DRLCSC C182075
- ISO7420DLCSC C2872519
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | VCC1 | Unspecified |
| 2 | INA | Unspecified |
| 3 | INB | Unspecified |
| 4 | GND1 | Unspecified |
| 5 | GND2 | Unspecified |
| 6 | OUTB | Unspecified |
| 7 | OUTA | Unspecified |
| 8 | VCC2 | Unspecified |
Open-source boards using it
All 2- 4 layers102.8 × 86.9 mm

- 4 layers60.1 × 39.9 mm

NRF24L01 mtr driver
yanntalhouarne/ATMEGA324_MTR_DRV_PCB
Isolated motor driver based around the ATMEGA324PB.
147 parts
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/ti/ISO7420D" title="ISO7420D in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/ISO7420D.jpg" alt="ISO7420D" width="1200" height="900">[](https://pcbkit.io/parts/ti/ISO7420D)Questions
Is there a KiCad symbol and footprint for the ISO7420D?
Yes. The symbol is EasyEDA_Cloud:XLISO7220BDR 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 ISO7420D?
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Where is the ISO7420D datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the ISO7420D?
JLCPCB lists it as part C182075, with 0 in stock; the sellers' links on this page open their listings.
What can replace the ISO7420D?
Parts like it in the library: the ADUM1201ARZ-RL7 by Analog Devices, the CA-IS3720HS by Chipanalog, the CA-IS3721HS by Chipanalog and the ISO7721D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ISO7420D?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8ADUM1201ARZ-RL7
SOIC-8-40℃~+105℃ 1 1 1Mbps 2.7V~5.5V 2.7V~5.5V 2500 25kV/us 50ns Bidirectional signal isolation、Multi-voltage domain interface、Power-on reset SOIC-8 Digital Isolators ROHSAnalog DevicesDigital IsolatorsCA-IS3720HS
SOIC-8-40℃~+125℃ 0 100kV/us 150Mbps 2 2 2.5V~5.5V 2.5V~5.5V 3750 8ns Fail-safe output High Level SOIC-8 Digital Isolators ROHSChipanalogDigital IsolatorsCA-IS3721HS
SOIC-8-40℃~+125℃ 1 1 100kV/us 150Mbps 2 2.5V~5.5V 2.5V~5.5V 3750 8ns Fail-safe output High Level SOIC-8 Digital Isolators ROHSChipanalogDigital IsolatorsISO7721D
SOIC-8-55℃~+125℃ 1 1 100Mbps 100kV/us 11ns 2.25V~5.5V 2.25V~5.5V 5000 Fail-safe output High Level SOIC-8 Digital Isolators ROHSTexas InstrumentsDigital IsolatorsΠ120U31
SOIC-8-40℃~+125℃ 0 150Kbps 150kV/us 2 3000 3V~5.5V 3V~5.5V 4.5us Fail-safe output High Level SOIC-8 Digital Isolators ROHS2Pai SemiDigital IsolatorsΠ122M31
SOIC-8-40℃~+125℃ 1 1 10Mbps 3000 3V~5.5V 3V~5.5V 75kV/us 8ns Fail-safe output、Multi-voltage domain interface High Level SOIC-8 Digital Isolators ROHS2Pai SemiDigital IsolatorsCA-IS3721CHS
SOIC-8Digital IsolatorsChipanalogΠ120M30
SOIC-8-40℃~+125℃ 0 10Mbps 2 3000 3V~5.5V 3V~5.5V 75kV/us 8ns Fail-safe output、Multi-voltage domain interface Low Level SOIC-8 Digital Isolators ROHS2Pai SemiDigital Isolators