Evaluation Board Hardware; Power Supply; Input Signals; Output Signals - Analog Devices EVAL-ADG5401FEBZ User Manual

UG-1755

EVALUATION BOARD HARDWARE

Figure 1 shows a typical evaluation setup where only a power
supply and signal generator are required. Figure 2 shows the
functional block diagram of the EVAL-ADG5401FEBZ main
components.
The ADG5401F on the EVAL-ADG5401FEBZ passes signals
from either the source connectors or drain connectors. The
ADG5401F source pins (S and SFB) have fault detection circuitry
that reacts to an overvoltage event. During an overvoltage event,
the switch turns off, and the
the ADG5401F data sheet for more details.

POWER SUPPLY

Connector J1 provides access to the
(V , GND, and V ). The EVAL-ADG5401FEBZ VDD, GND,
DD SS
and VSS terminals on J1 link to the corresponding pins on the
ADG5401F. For dual supply voltages, power the EVAL-
ADG5401FEBZ with a supply from ±5 V to ±22 V. For single-
supply voltages, connect the GND and VSS terminals together and
power the EVAL-ADG5401FEBZ with a supply from 8 V to 44 V.
The on-board ADP7142 LDO regulator is provided for the digital
control voltage. A secondary voltage source can be connected to
the EVAL-ADG5401FEBZ EXT_VL terminal and used as the
digital control voltage. To use the EVAL-ADG5401FEBZ
EXT_VL terminal, move the R10 resistor to the R11 pad.
Do not expose the on-board
voltages greater than 40 V. Remove the R6 resistor and supply
an alternative digital voltage via the EVAL-ADG5401FEBZ
EXT_VL terminal, if required.
ADG5401F FF pin pulls low. See
ADG5401F supply pins
ADP7142 LDO regulator to
EVAL-ADG5401FEBZ

INPUT SIGNALS

Two 2-pin screw connectors, J2 and J3, are provided on the
EVAL-ADG5401FEBZ to connect to the
pins (S and SFB) and drain pins (D and DFB), respectively.
Use additional Subminiature Version B (SMB) connectors if
extra connections are required. The
protected on the source side, and both EVAL-ADG5401FEBZ
source terminals (S and SFB) can handle a voltage of up to ±60 V.
See the ADG5401F
Each trace on the source and drain side includes two sets of
0603 pads (where the R16 to R23 resistors can be populated, if
required) that can place a load on the signal path to ground.
The R12 and R14 0 Ω resistors are placed in the signal path and
can be replaced with a user defined value. These resistors
combined with the capacitor 0603 pads create an RC filter.
The ADG5401F
of the switch channel. The switch operation can be manually
controlled using the headers on the LK1 link header. Or, remove
the link headers on LK1 and use the IN SMB connector to
interface an external controller directly to the device control
pin, IN. The LK2 link header can control the operation of the
power-on condition (POC) feature.

OUTPUT SIGNALS

The ADG5401F
indicates when the device is operating normally or if there is an
overvoltage fault on one of the source pins. For visual indication,
LED1 and LED2 are mounted on the EVAL-ADG5401FEBZ.
When the device operates normally, the FF pin remains high
(pull-up resistor required), and LED1 illuminates green. If an
overvoltage occurs at any of the source pins, the FF pin pulls
low, and LED2 illuminates red.
Rev. A | Page 4 of 8
ADG5401F
ADG5401F
data sheet for more details.
uses a parallel interface to control the operation
FF pin is an open-drain output. This output
User Guide
source
is overvoltage