CMT83085 replaces ADM2483BRWZ . Half-Duplex, iCoupler Isolated RS-485 Transceiver-Products-Dinglian Microelectronics Co. LTDFeatures
RS-485 transceiver with electrical data isolation
Complies with ANSI TIA/EIA RS-485-A and ISO 8482: 1987(E)
500 kbps data rate
Slew rate-limited driver outputs
Low power operation: 2.5 mA max
Suitable for 5 V or 3 V operations (VDD1)
High common-mode transient immunity: >25 kV/μs
True fail-safe receiver inputs
Chatter-free power-up/power-down protection
256 nodes on bus
Thermal shutdown protection
Safety and regulatory approvals
UL recognition: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice 5A
IEC 60950-1 800 V rms (basic), 400V rms (reinforced)
VDE Certificate of Conformity
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
VIORM = 560 V peak (reinforced)
VIORM(DC) = 1500 V dc
CQC certification per GB4943.1-2011
Operating temperature range: −40°C to +85°C
Operating temperature range: −40°C to +85°C
Safety-related certifications
• DIN VDE V 0884-11: 2017-01
• UL recognition: up to 5000Vrms for 1 minute per
UL1577
• CSA component notice 5A
• CQC approval per GB4943.1-2011
Up to 5000Vrms Insulation voltage
Bus side power supply voltage: 3.0V to 5.5V
VDD1 supply voltage: 2.5 to 5.5 V
High CMTI: ±200Kv/us
High system level EMC performance:
Bus Pins meet IEC61000-4-2±12 kV ESD
• Other Pins meet ±7 kV contact ESD
• Operation temperature: -40°C to 125°C
Fail-safe protection receiver
Slew rate limitation
Robust isolation barrier life:
• More than 40-year projected lifetime
Up to 256 transceivers on the bus
RoHS-compliant packages: SOIC 16 (wide body)
Applications
Industrial automatic control
Isolated RS-485 communication
Smart electric meter and water meter
Security and protection monitoring
