The ADM3061E/ADM3062E/ADM3063E/ADM3064E/ADM3065E/ADM3066E/ADM3067E/ADM3068E are 3.0 V to
5.5 V, IEC electrostatic discharge (ESD) protected RS-485
transceivers, allowing the devices to withstand ±12 kV contact
discharges on the transceiver bus pins without latch-up or
damage. The ADM3062E/ADM3064E/ADM3066E/ADM3068E
feature a VIO logic supply pin that allows a flexible digital interface
capable of operating as low as 1.62 V.
The ADM3065E/ADM3066E/ADM3067E/ADM3068E are
suitable for high speed, 50 Mbps, bidirectional data communication on multipoint bus transmission lines. The ADM3061E/ADM3062E/ADM3063E/ADM3064E/ADM3065E/ADM3066E/ADM3067E/ADM3068E feature a 1/4 unit load input
impedance that allows up to 128 transceivers on a bus. The
ADM3061E/ADM3062E/ADM3063E/ADM3064E models offer
all of the same features as the ADM3065E/ADM3066E/ADM3067E/ADM3068E models at a low 500 kbps data rate that
is suitable for operation over long cable runs.
The ADM3061E/ADM3062E/ADM3065E/ADM3066E are halfduplex RS-485 transceivers, fully compliant to the PROFIBUS®
standard with increased 2.1 V bus differential voltage at VCC ≥
4.5 V. The ADM3063E/ADM3064E/ADM3067E/ADM3068E
are full duplex RS-485 transceiver options.
The RS-485 transceivers are available in a number of spacesaving packages, including the 10-lead, 3 mm × 3 mm lead frame
chip-scale package (LFCSP), the 8-lead or 10-lead, 3 mm × 3 mm
mini small outline package (MSOP), and the 8-lead or 14-lead,
narrow body standard small outline packages (SOIC_N).
Models with operating temperature ranges of −40°C to +125°C
and −40°C to +85°C are available.
Excessive power dissipation caused by bus contention or by
output shorting is prevented by a thermal shutdown circuit. If a
significant temperature increase is detected in the internal driver
circuitry during fault conditions, this feature forces the driver
output into a high impedance state.
The ADM3061E/ADM3062E/ADM3063E/ADM3064E/ADM3065E/ADM3066E/ADM3067E/ADM3068E guarantee a
logic high receiver output when the receiver inputs are shorted,
open, or connected to a terminated transmission line with all
drivers disabled.
Table 2 in the data sheet presents an overview of the ADM3061E/ADM3062E/ADM3063E/ADM3064E/ADM3065E/ADM3066E/ADM3067E/ADM3068E data rate capability across temperature, power supply,
and package options. Refer to the Ordering Guide section for
model numbering.
APPLICATIONS
- Industrial fieldbuses
- Process control
- Building automation
- PROFIBUS networks
- Motor control servo drives and encoders
