The EVAL-ADM2867EEBZ allows the simplified, efficient
evaluation of the 5.7 kV rms ADM2867E signal and power
isolated RS-485 transceiver.
The ADM2867E features an integrated, isolated, dc-to-dc converter
that provides power to the isolated side of the device with no
additional ICs required.
An on-board ADP7104 low dropout (LDO) regulator accepts
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 VCC pin of the ADM2867E.
The LDO regulator can be bypassed to power the VCC pin of the
ADM2867E directly.
A flexible logic VIO supply allows the device to operate with a
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 VIO pin can also be supplied from
the ADP7104 regulated supply.
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 EVALADM2867EEBZ. 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 LTC6900 oscillator is included
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 ADM2867E
5.7 kV rms, isolated RS-485 transceiver.
For full details on the ADM2867E, see the ADM2867E data sheet,
which must be used in conjunction with this user guide when
using the EVAL-ADM2867EEBZ.
