ADM2563EBRNZ - 3 kV Isolated RS-485 Transceiver, 28-SOIC-W-FP | Analog Devices
MPN: ADM2563EBRNZ ✓ Hoạt độngADM2563EBRNZ Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADM2563EBRNZ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADM2563EBRNZ (cùng hình factor và footprint) — khác nhau ở Package, Protocol, Compliance, Function, Isolation Voltage (RMS).
ADM2561EBRNZ-RL7
✅ Drop-In✓ Còn hàng
$9.07 / Đơn vị
Xem tài liệu →ADM2563EBRNZ-RL7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADM2565EBRNZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADM2567EBRNZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADM2563EEBZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADM2563EBRNZ Thông số kỹ thuật
| Protocol | RS-422, RS-485 (full-duplex) |
| Number of Drivers / Receivers | 1 / 1 |
| Tốc độ dữ liệu | 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 |
| Khoảng nhiệt độ hoạt động | −40 °C to +85 °C |
| Hộp | 28-SOIC-W-FP (wide-body SOIC, exposed pad) |
| Trạng thái RoHS | Compliant |
| Compliance | ANSI/TIA/EIA-485-A-98, ISO 8482:1987 (E) |
Cấu hình chân ADM2563EBRNZ
| Chân 1 | VCC — Logic-side supply (3.0 V to 5.5 V) |
| Chân 2 | VIO — Logic-side I/O supply (1.7 V to 5.5 V) |
| Chân 3 | GND1 — Logic-side ground (referenced to MCU) |
| Chân 4 | TXD — Transmit data input (logic-side) |
| Chân 5 | RXD — Receive data output (logic-side) |
| Chân 6 | RE — Receiver enable (active low) |
| Chân 7 | DE — Driver enable (active high) |
| Chân 8 | NC — Not connected (per datasheet) |
| Chân 9 | NC — Not connected (per datasheet) |
| Chân 10 | NC — Not connected (per datasheet) |
| Chân 11 | NC — Not connected (per datasheet) |
| Chân 12 | NC — Not connected (per datasheet) |
| Chân 13 | NC — Not connected (per datasheet) |
| Chân 14 | NC — Not connected (per datasheet) |
| Chân 15 | VSEL — VISOOUT voltage select (3.3 V/5 V) |
| Chân 16 | VISOOUT — Isolated DC-DC output to bus side |
| Chân 17 | GND2 — Isolated (bus-side) ground |
| Chân 18 | NC — Not connected (per datasheet) |
| Chân 19 | NC — Not connected (per datasheet) |
| Chân 20 | A — RS-485 driver non-inverting output / receiver non-inverting input |
| Chân 21 | B — RS-485 driver inverting output / receiver inverting input |
| Chân 22 | Z — RS-485 driver inverting output (full-duplex Y/Z pair) |
| Chân 23 | Y — RS-485 driver non-inverting output (full-duplex Y/Z pair) |
| Chân 24 | NC — Not connected (per datasheet) |
| Chân 25 | NC — Not connected (per datasheet) |
| Chân 26 | NC — Not connected (per datasheet) |
| Chân 27 | NC — Not connected (per datasheet) |
| Chân 28 | NC — Not connected (per datasheet) |
| Chân 29 | EP — Exposed pad, solder to ground for thermal dissipation |
Ứng dụng tiêu biểu
ADM2563EBRNZ phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADM2563EBRNZ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Highest data rate in 28-SOIC-W-FP isolated RS-485 family (vsADM2561EBRNZ)
- Integrated isoPower eliminates external isolated supply (vsADM2483)
- Drop-in compatibility with -RL7 reel packaging variant (vsADM2563EBRNZ-RL7)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
