CMT8121 replaces ADuM7241CRZ.1 kV Dual Channel Digital Isolators --Dinglian Microelectronics Co. LTDNarrow-body, RoHS-compliant, 8-lead SOIC
Safety and regulatory approvals
UL recognition
UL 1577: 1000 V rms for 1 minute
Low power operation
5 V operation
2.4 mA per channel maximum at 0 Mbps to 1 Mbps
11.8 mA per channel maximum at 25 Mbps
3.3 V operation
1.7 mA per channel maximum at 0 Mbps to 1 Mbps
8.2 mA per channel maximum at 25 Mbps
Bidirectional communication
Up to 25 Mbps data rate (NRZ)
3 V/5 V level translation
High temperature operation: 105°C
High common-mode transient immunity: >15 kV/μs
General-purpose multichannel isolation
Data converter isolation
Industrial field bus isolation
Safety-related certifications
• DIN VDE V 0884-11: 2017-01
• UL 1577 component recognition program
• CSA certification according to IEC 60950-1, IEC
62368-1, IEC 61010-1 and IEC 60601-1 end
equipment standards
• CQC approval per GB4943.1-2022
• TUV certification according to EN 60950-1, EN
62368-1 and EN 61010-1
Robust electromagnetic compatibility
• System-level ESD, EFT, and surge immunity
• ±8 kV IEC 61000-4-2 contact discharge protection
across isolation barrier
• Low emissions
Data rate: up to 150 Mbps
Wide supply range: 2.5 to 5.5 V
Operation temperature: -40°C to 125°C
Robust isolation barrier
• More than 40-year projected lifetime
• Up to 5 kVRMS isolation rating
• Up to 8 kV surge capability
• ±200 kV/μs typical CMTI
Default output high or low options
Low power consumption, typical 1.5 mA per channel at 1
Mbps
Low propagation delay: 9 ns typical (5V supplies)
SOIC-16 package (wide body), WB(N) SOW8L and
SOIC-8 (narrow body)
