Evaluation Board Connectors - Analog Devices EVAL-ADAQ23876FMCZ User Manual

User Guide
EVALUATION BOARD HARDWARE

EVALUATION BOARD CONNECTORS

The functional descriptions for all the connectors (including a
160-pin FMC connector used to interface with the SDP-H1) used
on the EVAL-ADAQ23876FMCZ and EVAL-ADAQ23878FMCZ are
listed in Table 4 and Table 5). There are several test points and
single in line (SIL) headers on the EVAL-ADAQ23876FMCZ and
EVAL-ADAQ23878FMCZ. These test points provide easy access
to on-board signals for troubleshooting and evaluation purposes.
Table 3 details the different gain positions for the links of the
EVAL-ADAQ23876FMCZ and EVAL-ADAQ23878FMCZ.
Figure 3. Gain = 0.37
Figure 4. Gain = 0.73
Table 3. Gain Input Configuration
Gain Input Range (V) Input Signal on Pins
0.37 ±10 IN2+ IN2−
0.73 ±5 IN1+, IN1−
0.87 ±4.096 IN2+, IN2−
1.38 ±2.5 IN1+, IN1−
2.25 ±1.5 IN2+/IN1+, IN2−/IN1−
Table 4. On-Board Connectors
Connector Function
J1 CLKIN input
J2 EXT_CNV−
J3 External CLK input
J4 EXT_CNV+
VIN+ Analog input V+
VIN− Analog input V−
+3P3V External power supply
P5 SDP-H1 FMC connector
analog.com
EVAL-ADAQ23876/EVAL-ADAQ23878
Test Conditions
Connect the OUT+, IN1−, OUT−, and IN1+ pins together (see
Connect the OUT+, IN2−, OUT−, and IN2+ pins together (see
Leave the IN1+ and IN1− pins floating (see
Leave the IN2+ and IN2− pins floating (see
Connect the IN2−, IN1−, IN2+, and IN1+ pins together (see
Figure 5. Gain = 0.87
Figure 6. Gain = 1.38
Figure 7. Gain = 2.25
Figure 3)
Figure 4)
Figure 5)
Figure 6)
Figure 7)
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