Analog Devices EVAL-ADAQ7980SDZ User Manual page 25

EVAL-ADAQ7980SDZ User Guide
R10
0Ω
1
ONBOARD_7P5V
A
2
COM
3
ONBOARD_5V
B
3PIN_JUMPER_SM
R9
0Ω
C13 C14
0.1µF 10µF
AGND
R14
REF
10kΩ
REFERENCE SOURCES
ADR4550BRZ
2
VIN
C15 C16
GND
0.1µF 10µF
AGND
J7
AGND
ADR3433ARJZ
VIN
ENABLE
GND_FORCE
1
A
2
J8
COM
REF_PD 3
B
3PIN_JUMPER_SM
1
V+
2
3
AGND
3PIN_JUMPER_SM
2
AGND
5
–VS
VCM SOURCE
3
+IN
DIS_N
1
VOUT
4
–IN
U4
R15
+VS ADA4805-1ARJZ
10kΩ
6
AGND
C22
0.1µF
V+
AGND
R16
0Ω
C23
2700pF
DNI
Figure 30. EVAL-ADAQ7980SDZ
U2
5 VOLTS
R13
6
VOUT
0Ω
8
C18
TP
C17
NC1
0.1µF
2700PF
DNI
R11
0Ω
DNI
5V_REF
ON_BOARD_REF
3P3V_REF
M20-9990345
U3
3.3 VOLTS
R12
VOUT_FORCE
0Ω
VOUT_SENSE
C19
0.1µF
GND_SENSE
AGND
J20
A
COM
B
R17
0
C24
10µF
VCM SMB CONNECTOR
AGND
Schematic, Page 3
Rev. 0 | Page 25 of 30
C20
10µF
AGND
J9 J10
ON_BOARD_REF
1 1
REF
ON-BOARD/BENCH
2 2
EXT_REF
3 3
M20-9990345
C21
10µF
AGND
P5
1
VCM
SMB1251B1-3GT30G-5 0
5 4 3 2
AGND
UG-1060