Part A
ADM3050EBRWZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5661 個数
- Package
- SOIC-16
- 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 ADM3077EARZ and ADM3050EBRWZ are not drop-in replacements for one another. Although both are Analog Devices isolated RS-485 transceivers, they differ in isolation technology, data rate, package and pinout, and supply/speed class, so a direct board-level swap is not possible without design changes and revalidation.
Different isolation technology
Different data rate
Different package and pinout
Different supply and speed class
Parts at a glance
Part B
ADM3077EARZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 7400 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 | ADM3077EARZ | ADM3050EBRWZ | Why it matters |
|---|---|---|---|
| Function / Protocol | RS-485/RS-422 transceiver | Isolated CAN transceiver (CAN FD capable) | These devices serve entirely different bus protocols, so they are not functionally interchangeable in a given network. |
| Isolation | Non-isolated | Galvanically isolated (5 kV rms) | Isolation determines safety, ground-loop immunity, and suitability for harsh or high-voltage environments. |
| Data Rate | Up to 500 kbps (slew-rate limited) | Up to 12 Mbps (CAN FD) | Maximum data rate must match the bus speed requirements of the application. |
| Supply Voltage | 3.3 V single supply | 5 V (VCC) with 3.3 V/5 V logic supply (VIO) | Supply voltage compatibility affects power rail design and logic-level interfacing. |
| Number of Transceivers / Channels | 1 driver, 1 receiver (full duplex) | 1 CAN transceiver channel | Channel configuration determines how the device connects to the bus and host controller. |
| Duplex Mode | Full duplex | Half duplex (CAN differential bus) | Duplex mode affects wiring topology and whether simultaneous transmit/receive is possible. |
| Package | 8-lead SOIC (R-8) | 16-lead SOIC (RW-16) | Package footprint and pin count must match the PCB layout for a drop-in replacement. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +105 °C | Temperature range determines suitability for industrial and automotive environments. |
| Fail-Safe Receiver | Yes (open/short fail-safe) | Not applicable (CAN dominant/recessive bus) | Fail-safe behavior ensures a defined bus state under fault conditions, relevant to RS-485 networks. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADM3050EBRWZ | ADM3077EARZ |
|---|---|---|
| Series | iCoupler® | - |
| Part Status | Active | Active |
| Type | Transceiver, Isolated | Transceiver |
| Protocol | CAN | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 | 1/1 |
| Data Rate | 12Mbps | 16Mbps |
| Voltage - Supply | 0.5V ~ 6V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Duplex | - | Full |
| Receiver Hysteresis | - | 100 mV |
Frequently asked questions
What are the primary functional differences between the ADM3077EARZ and the ADM3050EBRWZ?
The ADM3077EARZ is a 3.3 V, ±15 kV ESD protected, half-duplex RS-485/RS-422 transceiver specified for 16 Mbps data rates, while the ADM3050EBRWZ is a 5 kV rms isolated CAN FD transceiver supporting data rates up to 12 Mbps. The ADM3077EARZ provides RS-485/RS-422 differential signaling, whereas the ADM3050EBRWZ integrates galvanic isolation for CAN bus applications.
Are the ADM3077EARZ and ADM3050EBRWZ pin-to-pin compatible?
No. The ADM3077EARZ is offered in an 8-lead SOIC package, and the ADM3050EBRWZ is offered in a 16-lead SOIC_W package with different pin functions. They are not pin-to-pin compatible and cannot be dropped into the same PCB footprint.
What supply voltage does each device require?
The ADM3077EARZ operates from a single 3.3 V supply (3.0 V to 3.6 V). The ADM3050EBRWZ operates from a single 5 V supply (4.5 V to 5.5 V) on VCC1 and VCC2, with an integrated isolated DC-to-DC converter supplying the isolated side.
What data rate and protocol does each transceiver support?
The ADM3077EARZ supports RS-485/RS-422 data rates up to 16 Mbps. The ADM3050EBRWZ supports CAN FD with data rates up to 12 Mbps, compliant with ISO 11898-2:2016.
What isolation rating does the ADM3050EBRWZ provide, and does the ADM3077EARZ provide isolation?
The ADM3050EBRWZ provides 5 kV rms galvanic isolation per UL 1577 and is certified to CSA and VDE standards. The ADM3077EARZ is a non-isolated RS-485/RS-422 transceiver and does not provide galvanic isolation.
What ESD protection is specified for the ADM3077EARZ?
The ADM3077EARZ is specified with ±15 kV ESD protection on the RS-485 bus pins (A and B) using the human body model (HBM), and ±8 kV using the IEC 61000-4-2 contact discharge method.
Can the ADM3077EARZ and ADM3050EBRWZ be used in the same application interchangeably?
No. They serve different bus protocols (RS-485/RS-422 versus isolated CAN FD), operate from different supply voltages, use different packages, and differ in isolation capability. They are not interchangeable and must be selected based on the target bus interface and isolation requirements.