Sichuan earth microelectronics 8-channel isolated digital input receiver

Product overview

CA-IS398X Series devices provide 8 Channel isolated digital input , It is very suitable for 24V Digital logic . These channels can absorb current or provide current , With integrated safety rated isolation . Combine some external devices ,CA-IS398X You can meet IEC 61311-2 Switch type 1、2 or 3 The requirements of .

CA-IS3980S adopt SPI The port reads the internal register status of the chip , You can also use SPI Port to write the chip, so as to realize the flexible configuration of the chip . The filter mode of the channel can be configured 、 De dithering filter time constant .CA-IS3980S except 4 Line SPI Except pins , Also has the MOSI_THRU Pin , This pin can realize multi chip daisy chain structure , It's a single SPI Serial connection on the interface 16 individual CA-IS3980S, No other control signals are required . therefore 16 individual CA-IS3980S By forming a network of daisy chain structures , Can monitor 128 Status of the channel .

Chuantu microelectronics CA-IS398X 

8 Selection table of channel isolated serial digital input receiver

Product characteristics

• accord with IEC61131-2 in the light of 24V Isolated digital input 1、2、3 Class characteristic standard

• The channel number ： Single package 8 Channel input

• Site side power supply ： Compatible with optocoupler input , No field side power supply is required

• Supply voltage ：2.25V~5.5V

• High data rate ：Up to 2Mbps

• Withstand voltage rating ：2500VRMS

• ESD Grade ：HBM ±4KV

• high CMTI：300 kV/us( Low speed channel ),50 kV/us( High speed channel )

• SPI Interface ：CA-IS3980S have SPI Interface

• To shake ： Optional de jitter filter time ：0ms,10ms,30ms,100ms

• Temperature range ：-40°~125°C

• Ultra small package ：SSOP20（Y）