Analog Devices' ADM306xE series, including ADM3061E, ADM3062E, ADM3063E, ADM3064E, ADM3065E, ADM3066E, ADM3067E, and ADM3068E, represents a range of 3.0 V to 5.5 V RS-485 transceivers with robust IEC electrostatic discharge (ESD) protection, allowing them to withstand ±12 kV contact discharges without risk of latch-up or damage. Notably, the ADM3062E, ADM3064E, ADM3066E, and ADM3068E feature a VIO logic supply pin, enabling a flexible digital interface capable of operating as low as 1.62 V.
For high-speed, bidirectional data communication on multipoint bus transmission lines at 50 Mbps, the ADM3065E, ADM3066E, ADM3067E, and ADM3068E stand out. Additionally, all models in the series feature a 1/4 unit load input impedance, facilitating the connection of up to 128 transceivers on a bus. Moreover, the ADM3061E, ADM3062E, ADM3063E, and ADM3064E models support a lower 500 kbps data rate suitable for extended cable runs, offering the same features as their higher-speed counterparts.
The ADM3061E, ADM3062E, ADM3065E, and ADM3066E specifically cater to half-duplex RS-485 communication, complying with the PROFIBUS® standard and providing increased 2.1 V bus differential voltage at VCC ≥ 4.5 V. Conversely, the ADM3063E, ADM3064E, ADM3067E, and ADM3068E serve as full-duplex RS-485 transceiver options.
These transceivers are available in compact packages, including LFCSP, MSOP, and SOIC_N, with various operating temperature ranges. Notably, a feature within the devices triggers the driver output into a high impedance state upon detecting a significant temperature increase in the internal driver circuitry during fault conditions.
Furthermore, the ADM3061E, ADM3062E, ADM3063E, ADM3064E, ADM3065E, ADM3066E, ADM3067E, and ADM3068E ensure a logic high receiver output under diverse input conditions, even when the receiver inputs are shorted, open, or connected to a terminated transmission line with all drivers disabled.
The datasheet's Table 2 provides an overview of the transceivers' data rate capability across temperature, power supply, and package options, while the ordering guide section offers detailed model numbering information.
For quick and convenient evaluation of the ADM3066E 50 Mbps RS-485 transceiver, Analog Devices offers the EVAL-ADM3066EEBZ and EVAL-ADM3066EEB1Z evaluation boards. These boards facilitate the testing of input and output functions without external components, featuring screw terminal blocks for power, ground, digital input/output, and RS-485 signals. The boards can be powered within a 3.0 V to 5.5 V range by a configurable bench power supply, showcasing the transceivers' practical application in real-world scenarios.
TIA/EIA RS-485 compliant over full supply range
3.0 V to 5.5 V operating voltage range on VCC
1.62 V to 5.5 V VIO logic supply option available
Full hot swap support (glitch-free power-up/power-down)
High-speed 50 Mbps data rate (ADM3065E/ADM3066E/ADM3067E/ADM3068E)
Low-speed 500 kbps data rate for long cables (ADM3061E/ADM3062E/ADM3063E/ADM3064E)
Full receiver short-circuit, open circuit, and bus idle fail-safe
Extended temperature range up to +125°C
PROFIBUS compliant at VCC ≥ 4.5 V
Half-duplex and full-duplex models available
Allows connection of up to 128 transceivers onto the bus
Supports defense and aerospace applications (AQEC standard)
ESD protection on the bus pins
IEC 61000-4-2 ±12 kV contact discharge
IEC 61000-4-2 ≥ ±12 kV air discharge
HBM: ≥ ±30 kV
Space-saving package options
10-lead, 3 mm × 3 mm LFCSP
8-lead and 10-lead, 3 mm × 3 mm MSOP
8-lead and 14-lead, narrow-body SOIC
Industrial fieldbuses
Process controls
Building automation
PROFIBUS networks
Motor control servo drives and encoders
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