Analog Devices EVAL-ADM2867EEBZ User Manual

One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluating the 5.7 kV RMS

FEATURES

Simplified evaluation of the 25 Mbps
RS-485 transceiver
2-layer PCB compliant to EN 55032 Class B radiated emissions
Footprint for 10.15 mm × 10.05 mm, 28-lead SOIC_W_FP
package with >8.0 mm creepage and clearance
On-board ADP7104 LDO regulator with jumper options for
simplified evaluation in 5 V or 3.3 V configuration
Flexible, low voltage V supply rail to interface with I/O
IO
nodes as low as 1.7 V
Selectable 3.3 V or 5 V isolated supply voltage options available
IEC 61000-4-2 ESD protection on the A, B, Y, and Z pins
±12 kV contact discharge and ±15 kV air discharge
SMA connector for high speed 25 Mbps TxD input signal
Optional on-board LTC6900
input signal
Screw terminal blocks for power connections, digital signals,
and RS-485 signals
Jumper-selectable enable and disable for digital input signals
Resistors and footprints for termination and loopback test
Test points to measure all signals

EVALUATION KIT CONTENTS

EVAL-ADM2867EEBZ

EQUIPMENT NEEDED

Oscilloscope
Signal generator
3.0 V to 5.5 V supply
1.62 V to 5.5 V supply

DOCUMENTS NEEDED

ADM2867E data sheet
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
RS-485 Transceiver with ±15 kV IEC ESD
ADM2867E
oscillator to provide TxD
EVAL-ADM2867EEBZ
ADM2867E Signal and Power Isolated

GENERAL DESCRIPTION

The EVAL-ADM2867EEBZ allows the simplified, efficient
evaluation of the 5.7 kV rms
isolated RS-485 transceiver.
The ADM2867E
that provides power to the isolated side of the device with no
additional ICs required.
An on-board ADP7104
an input voltage of 3.3 V to 20 V and regulates the voltage to a
selectable 3.3 V or 5 V supply for the V
The LDO regulator can be bypassed to power the V
ADM2867E directly.
A flexible logic V
digital input/output (I/O) voltage from 1.7 V to 5.5 V, which
enables communication with modern nodes using either a 1.8 V
or 2.5 V power supply. The V
the ADP7104
The EVAL-ADM2867EEBZ comes with options to evaluate the
ADM2867E in an individual system. Digital and RS-485 bus
signals are accessible via the screw terminal blocks on the EVAL-
ADM2867EEBZ. Each digital input can be configured via the
on-board jumper options.
Alternative methods can provide the transmit data input (TxD)
signal to the device. An optional
on the EVAL-ADM2867EEBZ and can be configured to provide a
clock signal as the TxD digital input within a 1 kHz to 20 MHz
range. For optimal signal integrity, use the on-board Subminiature
Version A (SMA) connector to connect an external TxD signal at
high data rates up to 25 Mbps.
The EVAL-ADM2867EEBZ has a footprint for the full duplex,
isolated, RS-485 transceiver in a 10.15 mm × 10.05 mm, 28-lead,
small outline, wide body with fine pitch (SOIC_W_FP) package.
The EVAL-ADM2867EEBZ is populated with the
5.7 kV rms, isolated RS-485 transceiver.
For full details on the ADM2867E, see the
which must be used in conjunction with this user guide when
using the EVAL-ADM2867EEBZ.
Rev. 0 | Page 1 of 12
ADM2867E signal and power
features an integrated, isolated, dc-to-dc converter
low dropout (LDO) regulator accepts
pin of the ADM2867E.
CC
supply allows the device to operate with a
IO
pin can also be supplied from
IO
regulated supply.
LTC6900
ADM2867E
User Guide
UG-1677
pin of the
CC
oscillator is included
ADM2867E
data sheet,