Isolation

Current Sensors

Current Sensors

Silicon Labs’ isolated AC, high-side DC current sensors and Isolated AC mains monitors provide current sensing solutions for a wide range of power applications. The Si85xx/Si890x family is ideal for a broad range of applications including ac-dc switching power supplies, isolated dc-dc supplies, UPS systems, motor control and electronic lighting ballasts.

Si8920 Isolated Amplifers

Part Number Data Sheet Evaluation Kit Package Type Temperature Range (°C) Output Mode Isolation Rating Initial Accuracy
Si8920ISO-KIT GW DIP8 -40 125 Analog 3.75 1.50%
Si8920ISO-KIT WB SOIC16 -40 125 Analog 5 1.50%
Si8920ISO-KIT GW DIP8 -40 125 Analog 3.75 0.75%
Si8920ISO-KIT WB SOIC16 -40 125 Analog 5 0.75%

Si890x Isolated Amplifiers

Part Number Data Sheet Evaluation Kit Package Type Temperature Range (°C) Output Mode Isolation Rating (kV rms) Full Scale Current (A) Initial Accuracy
Si890PWR-EVB WB SOIC16 -40 85 UART 2.5 10 0.10%
Si890PWR-EVB WB SOIC16 -40 85 UART 5 10 0.10%
Si890PWR-EVB WB SOIC16 -40 85 I2C/SMBus 2.5 10 0.10%
Si890PWR-EVB WB SOIC16 -40 85 I2C/SMBus 5 10 0.10%
Si890PWR-EVB WB SOIC16 -40 85 SPI 2.5 10 0.10%
 
Si890PWR-EVB WB SOIC16 -40 85 SPI 5 10 0.10%

Si8540 High-Side DC Current Sensor

Part Number Data Sheet Evaluation Kit Package Type Vcm (V) Icc (max) Bidirectional

Si8540

OPENLPPOL-EVB SOT23-5 5 36 90 No
Digital Isolators

Digital Isolators

Silicon Labs’ CMOS digital isolator products enable lower cost, smaller size, higher performance, lower power, and more reliable isolated circuits than competing optocoupler solutions. The Si80xx, Si83xx, Si86xx, Si87xx, and Si88xx families of one to six-channel bi- and unidirectional digital isolators support isolation voltage ratings up to 5 kV. With a broad product portfolio, a proven track record of industry innovation and an unwavering commitment to engineering excellence — Silicon Labs isolation technology is ready to meet your isolation needs.

 

Product Families

Family Isolation Rating Max Propagation Delay Unidirectional Channels Bidirectional Channels Forward Channels Reverse Channels Package Type Channel Type Output Supply (Min) Output Supply (Max)
Si838x 2.5 4 µs, 4 µs/100 ns 8 0 8 0 QSOP20 Unidirectional 5.5
Si86xxxT 5, – 13 2, 3, 4 0 1, 2, 3, 4 0, 1, 2 WB SOIC16 Unidirectional 2.5 5.5
Si87xx 3.75, 5 50, 60 1 0 1 0 GW DIP8, LGA8, NB SOIC8, WB SOIC6 Unidirectional 5.5, 30
Si88xx 5 23 2, 4 0 0, 1, 2, 3, 4 0, 1, 2, 3, 4 WB SOIC20 Unidirectional 3 5.5
Si80xx 1 65 3, 4, 5, 6 0 3, 4, 5, 6 0 QSOP16 Unidirectional 3.15 5.5
Si86xx 1, 2.5, 3.75, 5 13, 55 0, 1, 2, 3, 4, 5, 6 0, 1, 2 0, 1, 2, 3, 4, 5, 6 0, 1, 2, 3 NB SOIC16, NB SOIC8, QSOP16, WB SOIC16 Bidirectional, Unidirectional, Unidirectional

+Bidirectional

2.5 5.5