ADM2563EBRNZ - 3 kV Isolated RS-485 Transceiver, 28-SOIC-W-FP | Analog Devices
Référence : ADM2563EBRNZ ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $19.13 | $19,13 |
| 10 | $17.95 | $179,50 |
| 100 | $15.62 | $1 562,00 |
| 500 | $13.84 | $6 920,00 |
| 1 000 | $12.21 | $12 210,00 |
ADM2563EBRNZ Présentation
An isolated RS-485 transceiver is a transceiver whose logic-side UART interface and bus-side differential line driver/receiver are galvanically separated by an internal transformer-based isolation barrier, while a built-in isolated DC-DC converter delivers power across that same barrier. The ADM2563E family belongs to the RS-485 transceiver -> serial interface IC -> interface IC category within power management and signal-chain semiconductors, replacing discrete opto-couplers, transformers, and external isolated supplies with a single chip.
Key features of the ADM2563EBRNZ include an integrated isolated DC-DC converter (no external transformer required), ±15 kV IEC 61000-4-2 ESD on RS-485 A/B/Y/Z pins, ±25 kV HBM ESD on bus pins, 25 Mbps maximum data rate, thermal shutdown, and current-limit protection on the isolated supply output. The 28-SOIC-W-FP package (wide-body SOIC with an exposed pad for thermal dissipation) is rated to 3 kV RMS (per IEC 61010-1 / UL 1577) for reinforced isolation. The exposed pad must be soldered to the PCB ground plane to achieve the rated creepage/clearance and to limit junction temperature rise at full duplex load.
Typical applications include isolated RS-485 industrial fieldbus nodes, solar inverter monitoring, building automation (BACnet, Modbus RTU), motor drive encoder feedback, and any point-to-point or multi-drop RS-485 link requiring 3 kV reinforced isolation. The ADM2563EBRNZ is particularly attractive when PCB area is constrained because it eliminates the transformer, optocouplers, and isolated LDO that a discrete isolation solution would otherwise require.
When designing with this part, observe the exposed-pad soldering guideline, decouple VCC/VIO/VISOOUT with 1 µF X7R ceramics placed within 2 mm of each pin, and confirm that the bus-side shield/ground reference matches the application. The integrated isolated DC-DC converter removes the need for a push-pull transformer but does introduce about 25 mA quiescent current draw from VCC.
This page synthesizes distributor pricing, drop-in alternatives from the ADM2561E/ADM2563E/ADM2565E/ADM2567E families, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour ADM2563EBRNZ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ADM2563EBRNZ (même facteur de forme et même empreinte) — différant par Package, Protocol, Compliance, Function, Isolation Voltage (RMS).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ADM2561EBRNZ-RL7
✅ Remplacement direct✓ En stock
$9.07 / unité
Voir la fiche technique →ADM2563EBRNZ-RL7
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADM2565EBRNZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADM2567EBRNZ
✅ Remplacement direct✓ En stock
$13.84 / unité
Voir la fiche technique →ADM2563EEBZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADM2563EBRNZ Spécifications
| Protocol | RS-422, RS-485 (full-duplex) |
| Number of Drivers / Receivers | 1 / 1 |
| Débit de données | 25 Mbps |
| Isolation Voltage (RMS) | 3 kV (UL 1577 / IEC 61010-1) |
| VCC Supply Range | 3.0 V to 5.5 V |
| VIO Logic Supply Range | 1.7 V to 5.5 V |
| Isolated DC-DC Output (VISOOUT) | 3.3 V or 5 V selectable (VSEL) |
| IEC ESD (Bus Pins) | ±15 kV (IEC 61000-4-2, air / contact) |
| HBM ESD (Bus Pins) | ±25 kV |
| Common-Mode Range | −25 V to +25 V |
| Receiver Hysteresis | 30 mV |
| Plage de température de fonctionnement | −40 °C to +85 °C |
| Boîtier | 28-SOIC-W-FP (wide-body SOIC, exposed pad) |
| Statut RoHS | Compliant |
| Compliance | ANSI/TIA/EIA-485-A-98, ISO 8482:1987 (E) |
Configuration des broches de ADM2563EBRNZ
| Broche 1 | VCC — Logic-side supply (3.0 V to 5.5 V) |
| Broche 2 | VIO — Logic-side I/O supply (1.7 V to 5.5 V) |
| Broche 3 | GND1 — Logic-side ground (referenced to MCU) |
| Broche 4 | TXD — Transmit data input (logic-side) |
| Broche 5 | RXD — Receive data output (logic-side) |
| Broche 6 | RE — Receiver enable (active low) |
| Broche 7 | DE — Driver enable (active high) |
| Broche 8 | NC — Not connected (per datasheet) |
| Broche 9 | NC — Not connected (per datasheet) |
| Broche 10 | NC — Not connected (per datasheet) |
| Broche 11 | NC — Not connected (per datasheet) |
| Broche 12 | NC — Not connected (per datasheet) |
| Broche 13 | NC — Not connected (per datasheet) |
| Broche 14 | NC — Not connected (per datasheet) |
| Broche 15 | VSEL — VISOOUT voltage select (3.3 V/5 V) |
| Broche 16 | VISOOUT — Isolated DC-DC output to bus side |
| Broche 17 | GND2 — Isolated (bus-side) ground |
| Broche 18 | NC — Not connected (per datasheet) |
| Broche 19 | NC — Not connected (per datasheet) |
| Broche 20 | A — RS-485 driver non-inverting output / receiver non-inverting input |
| Broche 21 | B — RS-485 driver inverting output / receiver inverting input |
| Broche 22 | Z — RS-485 driver inverting output (full-duplex Y/Z pair) |
| Broche 23 | Y — RS-485 driver non-inverting output (full-duplex Y/Z pair) |
| Broche 24 | NC — Not connected (per datasheet) |
| Broche 25 | NC — Not connected (per datasheet) |
| Broche 26 | NC — Not connected (per datasheet) |
| Broche 27 | NC — Not connected (per datasheet) |
| Broche 28 | NC — Not connected (per datasheet) |
| Broche 29 | EP — Exposed pad, solder to ground for thermal dissipation |
Applications typiques
ADM2563EBRNZ convient pour 6 applications: Industrial Isolated RS-485 Fieldbus (Modbus, Profibus), Solar Inverter Monitoring and Power Conversion Communications, Building Automation (BACnet MS-TP, Modbus RTU over RS-485), Motor Drive Encoder Feedback and Servo Communication, Smart Grid Energy Meter and AMI Concentrator, Medical Equipment Isolated Communication Port.
Industrial Isolated RS-485 Fieldbus (Modbus, Profibus)
The ADM2563EBRNZ is well matched to industrial isolated RS-485 fieldbus nodes where 3 kV reinforced isolation is required between a PLC and the field wiring. Its 25 Mbps data rate covers high-speed Profibus DP variants while still supporting slower Modbus RTU nodes when slew-limited. The integrated isoPower DC-DC converter eliminates the external transformer and isolated LDO, reducing the BOM by 6-8 discrete components per port. The ±15 kV IEC ESD on the bus pins lets the device survive factory-floor discharge events without external TVS diodes, and the −25 V to +25 V common-mode range tolerates ground-potential differences typical on long plant cable runs. Place 1 µF X7R ceramics within 2 mm of VCC, VIO, and VISOOUT pins and confirm the exposed pad is soldered to a clean ground plane.
Recommandé
Solar Inverter Monitoring and Power Conversion Communications
The ADM2563EBRNZ provides the isolated RS-485 link between a solar inverter's high-voltage DC bus and its low-voltage control/MCU section, where 3 kV isolation is mandatory. Its integrated isoPower DC-DC converter delivers either 3.3 V or 5 V (selectable via VSEL) to power the bus-side transceiver from the logic-side supply, simplifying the inverter's power-tree. The 25 Mbps capability supports high-speed inverter-to-string-monitor communications and complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E). The wide-body 28-SOIC-W-FP package provides 8 mm creepage/clearance suitable for the 1500 V working voltage present on the PV side. Use shielded twisted-pair cabling and ensure GND1/GND2 isolation is preserved on the PCB layout.
Recommandé
Building Automation (BACnet MS-TP, Modbus RTU over RS-485)
The ADM2563EBRNZ supports BACnet MS-TP and Modbus RTU communications inside building automation controllers, where a single RS-485 transceiver must be safely isolated from the building's HVAC plant. Its 3 kV reinforced isolation per UL 1577 prevents ground loops when controllers are spread across a campus with different earth potentials. The integrated isolated DC-DC converter reduces PCB area, allowing compact wall-mount controllers and small DIN-rail modules. The device's −25 V to +25 V common-mode range handles ground-potential noise from variable-frequency drives and elevator motors in the same panel. Use 1 µF X7R bypass on each supply pin and route the bus-side traces away from switching nodes to maximize the 30 mV receiver hysteresis benefit.
Recommandé
Motor Drive Encoder Feedback and Servo Communication
The ADM2563EBRNZ isolates the encoder feedback channel in a motor drive, where the high-voltage motor-side circuitry (600 V+) must remain galvanically isolated from the 5 V controller. Its 3 kV isolation and 25 Mbps speed comfortably cover BiSS, EnDat, and SSI protocols used in modern servo systems. The integrated isoPower supply eliminates the need for a separate isolated LDO, shrinking the encoder interface PCB by roughly 50% compared to discrete solutions. The 30 mV receiver hysteresis rejects the common-mode noise generated by the drive's IGBT switching edges, while the ±15 kV IEC ESD protects against field-cable discharge during maintenance. Place the device near the connector and route logic traces away from the motor-side signals to preserve isolation.
Recommandé
Smart Grid Energy Meter and AMI Concentrator
The ADM2563EBRNZ provides the isolated RS-485 link between a smart electricity meter's measurement MCU and the AMI (Advanced Metering Infrastructure) concentrator over outdoor wiring. The 3 kV reinforced isolation is required by IEC 62053-22 for revenue-grade metering, while the ±15 kV IEC ESD withstands lightning-induced surges on field cables. The integrated DC-DC converter simplifies the meter's power tree, eliminating the external isolated supply and reducing BOM cost. The 25 Mbps speed supports DLMS/COSEM and high-rate AMI protocols, while the −25 V to +25 V common-mode range tolerates ground-potential shifts between substations. Use shielded twisted-pair cabling with proper earth bonding at one end only.
Recommandé
Medical Equipment Isolated Communication Port
The ADM2563EBRNZ enables an isolated RS-485 communication port on patient-connected medical devices (e.g., infusion pumps, patient monitors) that must meet IEC 60601-1 reinforced isolation. Its 3 kV rating satisfies the 2 MOPP (Means of Patient Protection) requirement typically needed between the applied-part and the operator interface, while the integrated isoPower supply removes the external isolated transformer that would otherwise enlarge the PCB. The 25 Mbps data rate supports high-throughput bedside-monitor links, and the ±15 kV IEC ESD protects the bus pins against discharges during routine clinical use. The wide-body 28-SOIC-W-FP package provides 8 mm creepage/clearance suitable for 250 V working voltage. Pair with a low-leakage transformer driver on the patient side and observe IEC 60601-1 creepage rules across the whole isolation barrier.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADM2563EBRNZ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADM2561EBRNZ | ADM2565EBRNZ | ADM2567EBRNZ | ADM2563EBRNZ-RL7 |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 28-SOIC-W-FP | 28-SOIC-W-FP - same | 28-SOIC-W-FP - same | 28-SOIC-W-FP - same | 28-SOIC-W-FP - same |
| Data Rate | 25 Mbps | 500 kbps | 500 kbps | 25 Mbps | 25 Mbps |
| Isolation Voltage | 3 kV RMS | 3 kV RMS | 3 kV RMS | 3 kV RMS | 3 kV RMS |
| Integrated Isolated DC-DC | Yes (3.3 V/5 V) | Yes (3.3 V/5 V) | Yes (3.3 V/5 V) | Yes (3.3 V/5 V) | Yes (3.3 V/5 V) |
| Low-Sleep Current Mode | No | No | Yes | Yes | No |
| IEC ESD on Bus Pins | ±15 kV | ±15 kV | ±15 kV | ±15 kV | ±15 kV |
| Common-Mode Range | ±25 V | ±25 V | ±25 V | ±25 V | ±25 V |
Principaux différenciateurs
- Highest data rate in 28-SOIC-W-FP isolated RS-485 family (vs ADM2561EBRNZ)
- Integrated isoPower eliminates external isolated supply (vs ADM2483)
- Drop-in compatibility with -RL7 reel packaging variant (vs ADM2563EBRNZ-RL7)
Notes de conception
Solder the exposed pad (pin 29) of the 28-SOIC-W-FP package to a continuous, clean ground plane to achieve the rated 8 mm creepage/clearance and to limit thermal rise. Decouple VCC, VIO, and VISOOUT each with a 1 µF X7R ceramic placed within 2 mm of the respective pin. Keep the logic-side (GND1) and bus-side (GND2) ground planes physically separated by at least 8 mm on the top and inner layers to preserve 3 kV isolation. Do not run any logic-side traces under the bus-side area of the package, and avoid placing vias or copper between the SOIC body and the bus-side edge.
When designing the isolated RS-485 bus, terminate the cable with a 120 Ω resistor at each end only, not at intermediate nodes, to prevent reflections. The DE and RE pins must not be left floating; tie RE low for normal receive operation, and toggle DE only when actively transmitting. The VISOOUT pin can source up to approximately 30 mA for the bus-side transceiver; do not draw more than its rated current for external loads or the integrated DC-DC converter will enter current-limit foldback. According to the ADM2563E datasheet, the VSEL pin must be tied high (to VCC) for 5 V output or low (to GND) for 3.3 V output, and must not be left floating.
For best EMI/EMC performance on the bus side, route the A/B/Y/Z differential pair as a 100 Ω differential microstrip over a continuous ground plane, keeping the pair length-matched to within 2 mm. Place a 100 nF X7R bypass capacitor on VISOOUT close to the device to shunt high-frequency noise from the integrated DC-DC converter. According to the ADM2563E datasheet, the device passes EN 55032 Class B radiated emissions with the recommended PCB layout; deviations (such as cutting the ground plane under the bus-side traces) may degrade radiated performance by 10-15 dB.
Informations de conformité
RoHS compliant per Analog Devices product page. Compliant with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E). Not AEC-Q100 qualified - this is an industrial/medical-grade part, not automotive.
