Product Matrix

Digital Isolators

Si84xx ISOpro Digital Isolators
Silicon Laboratories' family of digital isolators are the industry’s highest-performance, easiest-to-use, lowest-cost 2500 Vrms digital isolators.

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Block Diagram

 

Features

High integration: up to 6 isolation channels in a single package
High-speed operation: DC–150 Mbps
Wide operating supply voltage: 2.7-5.5 V
Low power
Precise timing
Less than 10 ns propagation delay
2 ns pulse width distortion
1 ns channel-channel matching
2 ns pulse width skew
2500 VRMS isolation
Transient immunity: >25 kV/µs
Enable controlled outputs
DC correct
No start-up initialization required

Applications

Example circuit applications
Isolation
Level shifting
Ground loop elimination
Example end applications
Isolated analog data acquisition
Operator interface controls
AC-DC and dc-dc switching supplies
Plasma TVs
USB/CAN/I²C networks
Isolated point-to-point communications
Motor control
UPS systems

Resources

Documentation
  
  
  
  
  
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Product Matrix

Part NumberAvailable DocumentsChannel TypeUnidirectional ChannelsBidirectional ChannelsForward ChannelsReverse ChannelsMaximum Data Rate (Mbps)Maximum Propagation Delay (ns)Isolation Rating (kV)Enable ControlPackageTemperature Range (°C)Vdd (V)        EVB Kits         
Si8400AAData SheetBidirectional-2--1.7401.0NoNB SOIC-8-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8400ABData SheetBidirectional-2--1.7402.5NoNB SOIC-8-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8405AAData SheetUnidirectional+Bidirectional22111.7201.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8405ABData SheetUnidirectional+Bidirectional22111.7202.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8410ABData SheetUnidirectional1-101352.5NoNB SOIC-8-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8410BBData SheetUnidirectional1-101509.52.5NoNB SOIC-8-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8420ABData SheetUnidirectional2-201352.5NoNB SOIC-8-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8420BBData SheetUnidirectional2-201509.52.5NoNB SOIC-8-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8421ABData SheetUnidirectional2-111352.5NoNB SOIC-8-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8421BBData SheetUnidirectional2-111509.52.5NoNB SOIC-8-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8430ABData SheetUnidirectional3-301352.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8430ABData SheetUnidirectional3-301352.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8430BBData SheetUnidirectional3-301509.52.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8430BBData SheetUnidirectional3-301509.52.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8431ABData SheetUnidirectional3-211352.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8431ABData SheetUnidirectional3-211352.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8431BBData SheetUnidirectional3-211509.52.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8431BBData SheetUnidirectional3-211509.52.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8435BBData SheetUnidirectional3-301509.52.5NoWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8435BBData SheetUnidirectional3-301509.52.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8440AAData SheetUnidirectional4-401351.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8440ABData SheetUnidirectional4-401352.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8440ABData SheetUnidirectional4-401352.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8440BAData SheetUnidirectional4-401509.51.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8440BBData SheetUnidirectional4-401509.52.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8440BBData SheetUnidirectional4-401509.52.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8441AAData SheetUnidirectional4-311351.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8441ABData SheetUnidirectional4-311352.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8441ABData SheetUnidirectional4-311352.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8441BAData SheetUnidirectional4-311509.51.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8441BBData SheetUnidirectional4-311509.52.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8441BBData SheetUnidirectional4-311509.52.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8442AAData SheetUnidirectional4-221351.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8442ABData SheetUnidirectional4-221352.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8442ABData SheetUnidirectional4-221352.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8442BAData SheetUnidirectional4-221509.51.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8442BBData SheetUnidirectional4-221509.52.5YesWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8442BBData SheetUnidirectional4-221509.52.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8445BAData SheetUnidirectional4-401509.51.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8445BBData SheetUnidirectional4-401509.52.5NoWB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8445BBData SheetUnidirectional4-401509.52.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8450AAData SheetUnidirectional5-501351.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8450ABData SheetUnidirectional5-501352.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8450BAData SheetUnidirectional5-501509.51.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8450BBData SheetUnidirectional5-501509.52.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8451AAData SheetUnidirectional5-411351.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8451ABData SheetUnidirectional5-411352.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8451BAData SheetUnidirectional5-411509.51.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8451BBData SheetUnidirectional5-411509.52.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8452AAData SheetUnidirectional5-321351.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8452ABData SheetUnidirectional5-321352.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8452BAData SheetUnidirectional5-321509.51.0YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8452BBData SheetUnidirectional5-321509.52.5YesNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8455BAData SheetUnidirectional5-501509.51.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8455BBData SheetUnidirectional5-501509.52.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8460AAData SheetUnidirectional6-601351.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8460ABData SheetUnidirectional6-601352.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8460BAData SheetUnidirectional6-601509.51.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8460BBData SheetUnidirectional6-601509.52.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8461AAData SheetUnidirectional6-511351.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8461ABData SheetUnidirectional6-511352.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8461BAData SheetUnidirectional6-511509.51.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8461BBData SheetUnidirectional6-511509.52.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8462AAData SheetUnidirectional6-421351.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8462ABData SheetUnidirectional6-421352.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8462BAData SheetUnidirectional6-421509.51.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8462BBData SheetUnidirectional6-421509.52.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8463AAData SheetUnidirectional6-331351.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8463ABData SheetUnidirectional6-331352.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8463BAData SheetUnidirectional6-331509.51.0NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy
Si8463BBData SheetUnidirectional6-331509.52.5NoNB SOIC-16-40 to 1252.7 to 5.5Isolator EVB
POL Ref Design
Sample
Buy

 



The patent-pending ISOpro isolator family uses a novel RF isolation architecture fabricated in a standard, 100% CMOS device to deliver a highly-integrated one-to-six-channel isolator that is one-third the size of competing optocoupler solutions reducing the bill of material cost by as much as 50 percent. The digital isolator family are CMOS devices that employ an RF coupler to transmit digital information across an isolation barrier. Very high-speed operation at low power levels is achieved. These parts are available in an 8-pin narrow-body and 16-pin narrow and 16-pin wide-body SOIC package. Two speed grade options (1 and 150 Mbps) are available over the full temperature range and worse case propagation delay of less than 10 ns. Isolator products are pin-for-pin compatible with competing solutions.

The Si8460 offers six forward channels, the Si8461 offers five forward channels and one reverse channel, the Si8462 offers four forward channels and two reverse channels and the Si8463 offers three forward channels and three reverse channels.

The Si8450/55 offers five forward channels, the Si8451 offers four forward channels and one reverse channel, and the Si8452 offers three forward channels and two reverse channels.

The Si8440/45 offers four forward channels, the Si8441 offers three forward channels and one reverse channel, and the Si8442 offers two forward channels and two reverse channels.  

The Si8430/35 offers three forward channels while the Si8431 offers two forward and one reverse.

The Si8410 offers one forward channel. The Si8420 offers two forward channels while the Si8421 offers one forward and one reverse channel.  

The Si840x offers bidirectional I²C/SMBUS/PMBUS compatible solutions.  The Si8400, available in NB SOIC-8, has two bidirectional isolated serial data and serial clock channels.  The Si8405, available in NB SOIC-16, adds two additional unidirectional isolated channels for system control signals, such as a reset and an interrupt, which are commonly required for complete I²C bus designs.

The Si84xx products are CSA and UL certified.

The Si84xx products are VDE certified.