Maxim Integrated MAXREFDES24EVSYS - Manual (Page 8)

MAXREFDES24EVSYS User Manual
Rev 0 8
3.5 Analog Signal Connections
The diagram below shows an example connection between an analog output (OUT1) on MAXREFDES24 and
an analog input (AIN0) on MAXADCLITE2 along with the ground connection between the two analog grounds
(AGND). All analog grounds are tied together on MAXREFDES24.
0
1
J4
J9
JU3
JU1
JU7
JU5
JU2
JU4
JU6
JU8
OUT1
OUT2
OUT3
OUT4 1
2
3
1 2 3
AIN0
AIN1
GND
MAXREFDES24
MAXADCLITE2
The jumpers shown above for the MAXREFDES24 select between 5% (default) and 20% overrange modes
while the jumpers shown for MAXADCLITE2 select the on-board termination resistor for testing current loops.
The following table summarizes the analog output signal ranges for the MAXREFDES24 design along with the
required hardware jumper settings. See the
Graphical User Interfaces section for all other mode controls.
OUTPUT SIGNAL
RANGE
MAX15500 OVERRANGE
CONTROL
MAXADCLITE2
FSMODE
(JU1, JU2,
JU3, JU4)
SENSER
(JU2, JU4,
JU6, JU8)
AIN
TERMINATION
(J4, J9)
0–20mA + 5% -140µA to 21mA
Don’t Care
Jumper 2:3
Jumper Closed
(500
Ω Load)
±20mA + 5%
-21mA to 21mA
0-20mA + 20% -150µA to 24mA
Jumper 1:2
±20mA + 20% -24mA to 24mA
0–5V + 5% -0.28V to 5.36V
Jumper 1:2
Don’t Care
Jumper Open
(1k
Ω Load)
0–10V + 5% -0.56V to 10.71V
0–5V + 20% -0.31V to 6.08V
Jumper 2:3 0–10V + 20% -0.63V to 12.16V
±10V + 20% -12.28V to 12.28V
Note the output range of the MAXREFDES24 analog outputs exceeds the input range capabilities of the
MAXADCLITE2 board, which only supports unipolar signals up to 10V or 20mA. Signals outside of this range
will be clamped by on-board protection diodes.