Part A
ADM3050EBRIZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5255 個数
- Package
- SOIC-8
- Series
- インターフェース - ドライバ、レシーバ、トランシーバ
Replacement verdict
Not a drop-in replacement
The ADM3050EBRIZ and ADM3071EYRZ are not functionally interchangeable: the ADM3050EBRIZ is an isolated CAN transceiver while the ADM3071EYRZ is a non-isolated RS-485/RS-422 transceiver, so they differ in bus protocol, isolation, and interface function and cannot be substituted in the same design without redesign.
Different bus protocol
Isolation not present
Different interface function
Different package and pinout
Parts at a glance
Part B
ADM3071EYRZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2224 個数
- Package
- SOIC-8
- Series
- インターフェース - ドライバ、レシーバ、トランシーバ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADM3050EBRIZ | ADM3071EYRZ | Why it matters |
|---|---|---|---|
| Function / Protocol | Isolated CAN transceiver (CAN FD capable) | Isolated RS-485/RS-422 transceiver | These devices serve different bus protocols (CAN vs RS-485), so they are not functionally interchangeable in a given network. |
| Isolation Rating | 5 kV rms (galvanic isolation) | 2.5 kV rms (galvanic isolation) | Higher isolation voltage provides greater safety margin and robustness in high-voltage or noisy industrial environments. |
| Data Rate | Up to 12 Mbps (CAN FD) | Up to 500 kbps (RS-485) | Data rate determines the maximum communication speed supported by the bus and must match the system's throughput requirements. |
| Supply Voltage | 5 V (VCC) with integrated isolated DC-DC | 5 V (VCC) with integrated isolated DC-DC | Both operate from a single 5 V supply with integrated isolation power, simplifying system design. |
| Duplex / Channel Configuration | Half-duplex CAN (single differential pair) | Full-duplex RS-485/RS-422 | Duplex configuration affects wiring topology and whether simultaneous transmit/receive is possible on the bus. |
| Number of Drivers/Receivers | 1 driver, 1 receiver (CAN) | 1 driver, 1 receiver (RS-485) | Channel count defines how many bus lines can be driven and monitored by the device. |
| Package | 20-lead SOIC (wide body) | 16-lead SOIC (wide body) | Package footprint and pin count affect PCB layout and cannot be directly substituted without redesign. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +85°C | Wider temperature range supports harsher industrial environments and affects reliability margins. |
| Fail-Safe Receiver | Yes (CAN dominant/recessive handling) | Yes (open/short fail-safe) | Fail-safe behavior ensures a defined bus state during idle or fault conditions, preventing undefined logic levels. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADM3050EBRIZ | ADM3071EYRZ |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Transceiver, Isolated | Transceiver |
| Protocol | CAN | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 | 1/1 |
| Duplex | - | Full |
| Receiver Hysteresis | 150 mV | 100 mV |
| Data Rate | 12Mbps | 250kbps |
| Voltage - Supply | 0.5V ~ 6V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Series | iCoupler® | - |
Frequently asked questions
What are the primary functional differences between the ADM3050EBRIZ and the ADM3071EYRZ?
The ADM3050EBRIZ is a galvanically isolated CAN transceiver compliant with ISO 11898-2, while the ADM3071EYRZ is a non-isolated RS-485/RS-422 transceiver. The ADM3050EBRIZ integrates iCoupler isolation technology for robust ground isolation in CAN networks, whereas the ADM3071EYRZ provides standard differential signaling for RS-485/RS-422 buses without isolation.
Are the ADM3050EBRIZ and ADM3071EYRZ pin-to-pin compatible?
No. The ADM3050EBRIZ is supplied in a 16-lead SOIC_W package with a pinout dedicated to isolated CAN (including VDD1, VDD2, GND1, GND2, and CANH/CANL pins), while the ADM3071EYRZ is supplied in an 8-lead SOIC package with a standard RS-485 pinout (RO, RE, DE, DI, A, B, and supply/ground pins). The package sizes and pin functions differ, so they are not drop-in replacements.
Can the ADM3050EBRIZ be used as a direct substitute for the ADM3071EYRZ in an existing RS-485 design?
No. The ADM3050EBRIZ is a CAN transceiver and cannot directly replace an RS-485 transceiver such as the ADM3071EYRZ. The protocol, signaling levels, pinout, and package are different. Substitution would require a complete redesign of the interface, including the controller, bus topology, and PCB layout.
What are the maximum data rates of the ADM3050EBRIZ and ADM3071EYRZ?
The ADM3050EBRIZ supports CAN data rates up to 1 Mbps, in accordance with the ISO 11898-2 standard. The ADM3071EYRZ supports RS-485/RS-422 data rates up to 250 kbps. These rates are not interchangeable, and each device must be operated within its specified maximum rate.
Do both devices provide galvanic isolation?
No. Only the ADM3050EBRIZ provides galvanic isolation, using Analog Devices iCoupler technology rated for 5 kV rms isolation. The ADM3071EYRZ is a non-isolated RS-485/RS-422 transceiver and does not provide galvanic isolation between the bus and the local controller.
What are the supply voltage requirements for the ADM3050EBRIZ and ADM3071EYRZ?
The ADM3050EBRIZ operates from a single 5 V supply on the logic side (VDD1) and a 5 V supply on the isolated bus side (VDD2), with an integrated isolated DC-to-DC converter. The ADM3071EYRZ operates from a single 5 V supply. The supply architectures differ, so power distribution must be designed accordingly.
Which device is suitable for industrial CAN bus applications requiring ground isolation?
The ADM3050EBRIZ is the appropriate choice for isolated CAN bus applications, as it integrates galvanic isolation and complies with ISO 11898-2. The ADM3071EYRZ is intended for non-isolated RS-485/RS-422 applications and does not provide the isolation required for such CAN networks.