Data Sheet
Signal and Power Isolated RS-485 Transceiver with ±15 kV ESD Protection
ADM2582E/ADM2587E
FEATURES
Isolated...
Data Sheet
Signal and Power Isolated RS-485 Transceiver with ±15 kV ESD Protection
ADM2582E/ADM2587E
FEATURES
Isolated RS-485/RS-422 transceiver, configurable as half or full duplex
isoPower integrated isolated dc-to-dc converter ±15 kV ESD protection on RS-485 input/output pins Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) ADM2582E data rate: 16 Mbps ADM2587E data rate: 500 kbps 5 V or 3.3 V operation Connect up to 256 nodes on one bus Open- and short-circuit, fail-safe receiver inputs High common-mode transient immunity: >25 kV/µs Thermal shutdown protection Safety and
regulatory approvals
UL recognition: 2500 V rms for 1 minute per UL 1577 VDE Certificates of Conformity
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01 VIORM = 560 V peak Operating temperature range: −40°C to +85°C Highly integrated, 20-lead, wide-body SOIC package
APPLICATIONS
Isolated RS-485/RS-422 interfaces Industrial field networks Multipoint data transmission systems
FUNCTIONAL BLOCK DIAGRAM
VCC
VISOOUT
isoPower DC-TO-DC CONVERTER
OSCILLATOR
RECTIFIER
REGULATOR
VISOIN
DIGITAL ISOLATION iCoupler TxD ENCODE
DECODE
TRANSCEIVER D
Y Z
DE ENCODE
DECODE
RxD DECODE
ENCODE
A R
B
RE ADM2582E/ADM2587E
GND1
ISOLATION BARRIER
Figure 1.
GND2
08111-001
GENERAL DESCRIPTION
The ADM2582E/ADM2587E are fully integrated signal and power isolated data transceivers with ±15 kV ESD protection and are suitable for high speed communication on multipoint transmission lines. The ADM2582E/ADM2587E in...