The ISO7520C and ISO7521C provide galvanic isolation of up to 4243 VRMS for 1 minute per UL and 6000 VPK per VDE. These devices are also certified to 5000 VRMS reinforced insulation per end equipment standards IEC 60950-1, IEC 61010-1, and IEC 60601-1. These digital isolators have two isolated channels with unidirectional (ISO7520C) and bidirectional (ISO7521C) channel configurations. Each isolation channel has a logic input and output buffer separated by a silicon oxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The devices have TTL input thresholds and can operate from 3.3- and 5-V supplies. All inputs are 5-V tolerant when supplied from 3.3-V supplies.
**NOTE:** The ISO7520C and ISO7521C are specified for signaling rates up to 1 Mbps. Due to their fast response time, these devices will also transmit faster data with much shorter pulse widths. Designers must add external filtering to remove spurious signals with input pulse duration < 20 ns, if desired.
Highest Signaling Rate: 1 Mbps
Propagation Delay Less Than 20 ns
Low-Power Consumption
Wide Ambient Temperature: 40°C to 105°C
50 kV/µs Transient Immunity Typical
Operates From 3.3-V or 5-V Supply and Logic
Levels
3.3-V and 5.0-V Level Translation
Safety and Regulatory Approvals
6000 VPK Isolation per DIN V VDE V 0884-10
and DIN EN 61010-1
4243 VRMS Isolation for 1 Minute per UL 1577
CSA Component Acceptance Notice 5A, IEC
60950-1, IEC 61010-1, and IEC 60601-1 End
Equipment Standards
TUV 5000 VRMS Isolation per EN 60950-1 and
EN 61010-1
CQC Certification per GB4943.1-2011
APPLICATIONS
Opto-Coupler Replacement in:
Industrial Field-Buses
ProfiBuses
ModBuses
DeviceNet™ Data Buses
Servo Control Interfaces
Motor Control
Power Supplies
Battery Packs
All other trademarks are the property of their respective owners
