ADUM14xE operation voltage

Question

Hi everyone, 
 it's possible to use the ADUM142E and ADUM1251 in mixed powersupply mode? 
 VDD1 =+3V3 and VDD2=1V8 
 In the datasheet is always explained the typical voltage range for 5V/3V3 or 1V8 
 
 thx

MarkusHP · Accepted Answer

Hello Micha, 
 the ADuM142E and ADuM1251 are 'isolators', hence no connection between VDD1/GND1 towards VDD2/GND2. 
 As both parts offer signal level translation this scenario demands for mixed power supply levels. 
 ADuM142 offers 1.8-5,5V VDDx range and ADuM1251 offers 3,0V-5,5V as VDDx range. 
 The specified parameters are always stated for VDD1=VDD2, to limit the amount of data and reduce test time. 
 
 kind regards 
 Markus

Electronic Design Services - PartnerZone

Products In This Thread

ADUM14xE operation voltage

Top Replies