ADM3065EBRMZ - 50Mbps RS-485 Transceiver | Analog Devices
MPN: ADM3065EBRMZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
ADM3065EBRMZ Overview
An RS-485 transceiver is an integrated circuit that implements the physical layer of the RS-485 standard, enabling differential data transmission over long distances (up to 1200 meters) and supporting multi-drop networks with up to 32 unit loads. The ADM3065E family is part of the broader interface IC category, which includes RS-232, RS-422, and RS-485 transceivers, and is essential for reliable communication in noisy industrial environments.
Key features include ±12 kV IEC ESD protection on the A and B bus pins (contact and air gap discharge), a wide supply voltage range, and a high data rate of 50 Mbps. The device also features a half-duplex configuration with a driver and receiver enable pin, allowing efficient bus control. The wide operating temperature range of -40°C to +125°C ensures reliable performance in harsh industrial settings.
The ADM3065E uses a differential signaling architecture that provides high noise immunity and common-mode rejection, essential for long cable runs. The transceiver includes thermal shutdown and short-circuit protection, enhancing system reliability. The 8-lead MSOP package has a thermal resistance of approximately 206°C/W (junction-to-ambient), which should be considered for high-temperature applications.
Typical applications include industrial automation, building automation (HVAC, lighting control), and instrumentation systems where high-speed, robust communication is required. The device is also suitable for motor control drives and remote sensor networks.
When designing with the ADM3065EBRMZ, ensure proper termination resistors (120 Ω) at both ends of the bus to minimize reflections. The enable pins should be controlled to avoid bus contention, and the A and B pins should be biased to a known state when the bus is idle.
Drop-in alternatives for ADM3065EBRMZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADM3065EBRMZ (same form factor and footprint) — differing in Package, ESD Protection, Data Rate, Number of Pins, Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADM3065EBRMZ-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ISL3170EIUZ
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADM3065EBRMZ Specifications
| Type | Transceiver |
| Protocol | RS-485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Data Rate | 50 Mbps |
| Supply Voltage | 3.0 V to 5.5 V |
| ESD Protection | ±12 kV IEC (contact and air gap) |
| Operating Temperature | -40°C to +125°C |
| Package | 8-MSOP |
| Mounting Type | Surface Mount |
| Number of Pins | 8 |
| RoHS Status | Compliant |
| REACH | Unaffected |
| MSL Level | 1 (Unlimited) |
| Thermal Resistance (θJA) | 206 °C/W |
ADM3065EBRMZ Pin Configuration
| Pin 1 | RO — Receiver output |
| Pin 2 | RE — Receiver enable (active low) |
| Pin 3 | DE — Driver enable (active high) |
| Pin 4 | DI — Driver input |
| Pin 5 | GND — Ground |
| Pin 6 | A — Non-inverting bus pin |
| Pin 7 | B — Inverting bus pin |
| Pin 8 | VCC — Power supply |
Typical Applications
ADM3065EBRMZ is suitable for 6 applications: Industrial Automation, Building Automation, Instrumentation, Motor Control Drives, Remote Sensor Networks, Security Systems.
Industrial Automation
The ADM3065EBRMZ is ideal for industrial automation networks requiring high-speed, robust communication. Its 50 Mbps data rate supports fast data transfer between PLCs, sensors, and actuators. The ±12 kV ESD protection ensures reliability in harsh factory environments. The wide supply voltage range (3.0 V to 5.5 V) allows integration with various logic levels. The half-duplex configuration simplifies bus wiring, and the MSOP-8 package saves PCB space. For multi-drop networks, the device supports up to 32 nodes, enabling scalable automation systems.
Recommended
Building Automation
In building automation, the ADM3065EBRMZ provides reliable communication for HVAC, lighting, and access control systems. Its high data rate enables quick response times for real-time control. The ESD protection safeguards against electrostatic discharge from cabling. The wide temperature range (-40°C to +125°C) ensures operation in unconditioned spaces. The half-duplex interface reduces wiring complexity, and the small MSOP-8 package fits into compact controllers. The device's low power consumption is suitable for energy-efficient building systems.
Recommended
Instrumentation
The ADM3065EBRMZ is well-suited for instrumentation systems that require high-speed data acquisition and control. Its 50 Mbps data rate allows rapid transmission of measurement data. The ±12 kV ESD protection ensures reliability in test environments. The wide supply voltage range accommodates various power rails. The half-duplex configuration is ideal for point-to-point or multi-drop instrument networks. The MSOP-8 package is compact for portable instruments. The device's robust design ensures accurate data transfer in noisy industrial settings.
Recommended
Motor Control Drives
The ADM3065EBRMZ enables high-speed communication between motor drives and controllers. Its 50 Mbps data rate supports real-time control commands. The ESD protection is critical in motor drive environments with high electromagnetic interference. The wide temperature range (-40°C to +125°C) suits industrial motor enclosures. The half-duplex interface allows simple daisy-chaining of multiple drives. The MSOP-8 package fits into compact drive PCBs. The device's robust design ensures reliable operation in high-vibration environments.
Recommended
Remote Sensor Networks
The ADM3065EBRMZ is ideal for remote sensor networks that require long-distance, high-speed data transmission. Its differential signaling provides noise immunity over long cable runs. The 50 Mbps data rate supports high-bandwidth sensor data. The ESD protection ensures reliability in outdoor environments. The wide supply voltage range allows battery-powered operation. The half-duplex configuration reduces wiring, and the MSOP-8 package is suitable for compact sensor nodes. The device's low power consumption extends battery life.
Recommended
Security Systems
The ADM3065EBRMZ provides reliable communication in security systems, such as access control and surveillance. Its high data rate supports video and control data transmission. The ESD protection is essential for outdoor camera installations. The wide temperature range ensures operation in various climates. The half-duplex interface simplifies wiring in security panels. The MSOP-8 package fits into compact security devices. The device's robust design ensures secure and reliable data transfer.
Recommended
Recommended Products Summary
Engineering reference data for ADM3065EBRMZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADM3065EBRMZ-R7 | ADM3065EBRZ | ISL3170EIUZ |
|---|---|---|---|---|
| Package | 8-MSOP | 8-MSOP | 8-SOIC | 8-MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Renesas Electronics |
| Data Rate | 50 Mbps | 50 Mbps | 50 Mbps | 20 Mbps |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 3.6 V |
| ESD Protection | ±12 kV IEC | ±12 kV IEC | ±12 kV IEC | ±16 kV HBM |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +85°C |
| Duplex | Half | Half | Half | Half |
| Pin Compatibility | Reference | Yes | No (different package) | Yes |
Key Differentiators
- Higher data rate than many competitors (vs ISL3170EIUZ)
- Wider supply voltage range (vs ISL3170EIUZ)
- Extended temperature range (vs ISL3170EIUZ)
Design Notes
Place the ADM3065EBRMZ close to the bus connector to minimize trace length and reduce EMI. Use 120 Ω termination resistors at both ends of the RS-485 bus to prevent signal reflections. Keep the A and B traces parallel and close together to maintain differential impedance.
Decouple the VCC pin with a 0.1 µF ceramic capacitor placed as close as possible to the pin. For noisy industrial environments, add a 10 µF bulk capacitor. Ensure the power supply can handle the transient currents during data transmission.
Avoid bus contention by ensuring only one driver is enabled at a time. Use the RE and DE pins to control the bus direction. When the bus is idle, bias the A and B lines to a known state using pull-up and pull-down resistors to prevent undefined receiver output.
Compliance Information
RoHS3 compliant and REACH unaffected per PartGenie. MSL 1 (unlimited).
