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The ADM2491E is an isolated data transceiver with ±8 kV ESD protection and is suitable for high speed, half- or full-duplex communication on multipoint transmission lines. For half-duplex operation, the transmitter outputs and the receiver inputs share the same transmission line. Transmitter output Pin Y is linked externally to receiver input Pin A, and transmitter output Pin Z to receiver input Pin B. The ADM2491E is designed for balanced transmission lines and complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E). The device employs Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, a threestate differential line driver, and a differential input receiver into a single package The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection to ±8 kV using the human body model (HBM). The logic side of the device can be powered with either a 5 V or a 3.3 V supply, whereas the bus side requires an isolated 5 V supply. The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention could cause excessive power dissipation. The ADM2491E is available in a wide body, 16-lead SOIC package and operates over the −40°C to +85°C temperature range. Applications Isolated RS-485/RS-422 interfaces Industrial field networks INTERBUS Multipoint data transmission systems
supply_voltage_dc | 3.00 V (min) |
case_package_si | SOIC |
rohs_status | Compliant |
reach_svhc_compliance | No SVHC |
lead_free_status | Contains Lead |
packaging | Tube |
case_package | SOIC |
lifecycle_status | Active |
pin_count | 16 |
Device Type | RS485 Transceiver |
IC Interface Type | RS422, RS485 |
No. of Drivers | 1Drivers |
No. of Receivers | 1Receivers |
Supply Voltage Min | 3V |
Supply Voltage Max | 5.5V |
Driver Case Style | WSOIC |
No. of Pins | 16Pins |
Operating Temperature Min | -40°C |
Operating Temperature Max | 85°C |
Packaging | Each |
Product Range | ADM2491E Series |
Automotive Qualification Standard | - |
RoHS Phthalates Compliant | Yes |
MSL | MSL 1 - Unlimited |
IC Generic Number | ADM2491E |
SVHC | No SVHC (07-Jul-2017) |
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