Level 4 DO-160G EMC Protected RS-485
Transceiver with Full ±42 V Fault Protection
Enhanced Product
ADM3095E-EP
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FEATURES
Fully certified DO-160G EMC protection on RS-485 bus pins:
Section 22 lightning protection Waveform 3, Waveform 4/
Waveform 1, and Waveform 5A pin injection, Level 4
protection
DO-160G Section 25 ESD protection: ±15 kV air discharge
RS-485 A Pin and RS-485 B pin and HBM ESD protection:
>±30 kV
±42 V ac/dc peak fault protection on RS-485 bus pins
TIA/EIA RS-485 compliant over full supply range
3.0 V to 5.5 V operating voltage range on V
CC
1.62 V to 5.5 V V
IO
logic supply
Common-mode input range: −25 V to +25 V
2.5 Mbps data rate, maximum
Half duplex
Enhanced 2.1 V driver output strength at 4.5 V V
CC
Receiver short-circuit, open circuit, and floating input fail-safe
Supports 256 bus nodes (96 kΩ receiver input resistance)
−55°C to +125°C temperature option
Glitch free power-up and power-down (hot swap)
16-lead, narrow body SOIC package
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications
(AQEC standard)
Military −55°C to +125°C operating temperature range
Controlled manufacturing baseline
1 assembly/test site
Enhanced product change notification
Qualification data available on request
APPLICATIONS
Military and aerospace (MILA) avionics for sensors,
actuators, and engine control
GENERAL DESCRIPTION
The ADM3095E-EP is a 3.0 V to 5.5 V, 2.5 Mbps, RS-485
transceiver that features up to ±42 V ac/dc peak bus overvoltage
fault protection on the RS-485 bus pins. This device is designed
to withstand overvoltage faults, such as short circuits directly to
power supplies, and overvoltage faults, such as ±24 V ac
supplies connected in error to the RS-485 A and B bus pins. The
ADM3095E-EP integrates fully certified DO-160G electromagnetic
capability (EMC) protection on the RS-485 bus pins, with Section
22 lightning protection. The ADM3095E-EP also provides Section
25 ±15 kV electrostatic discharge (ESD) air discharge protection.
For Section 22 lightning, the ADM3095E-EP provides protection
for Waveform 3, Waveform 4/Waveform 1, and Waveform 5A to
Level 4 connecting 33 or 47 Ω current limiting resistors to GND.
This device has an extended common-mode input voltage (V
CM
)
range of ±25 V to improve data communication reliability in
noisy environments over long cable lengths where ground loop
voltages are possible. The combination of extended common-mode
input voltage range, overvoltage fault protection, and DO-160 EMC
protection make the ADM3095E-EP a completely integrated EMC
protected RS-485 transceiver.
The ADM3095E-EP also features a logic supply pin, V
IO
, for a
flexible digital interface, operational to voltages as low as 1.62 V.
The ADM3095E-EP features a high driver differential output
voltage, V
OD
, of 2.1 V minimum at power supply voltages greater
than 4.5 V. The device is fully characterized over extended
operating temperature ranges, with options of −55°C to +125°C,
and is available in a 16-lead, narrow body SOIC package.
Additional information and technical information can be found in
the ADM3095E data sheet.
