Analog Devices EVAL-AD5678DBZ User Manual page 8

UG-987
+2.5V
2
6
VDD V IN VOUT
U5
ADR431BRZ
7 5
COMP TRIM
GND
4
REF1
E
+5VREF
D
+2_5VREF
VREF_1
C
+4_096VREF
EX_REF_1
VDD B
A
SDIN SDO SCLK SYNC SCL
SDIN
SDO
SCLK
SYNC
SCL
J1
AGND
1 2
3 4
DB6
5 6
DB7
7 8
DB8
9 10
DB9
11 12
DB10
13 14
DB11
15 16
CS
Figure 10.
VDD
3
VOUT_0 +
AD8655
2
–
U11
VSS
VDD
3
VOUT_1 +
AD8655
2
–
U12
VSS
+2.5V
2
+2_5VREF VDD
5
C15
1µF
REF2
E
+5VREF
D
+2_5VREF
C
+4_096VREF
EX_REF_2
VDD B
VREF1 A
Figure 9. EVAL-MBnanoDAC-SDZ
DAUGHTER BOARD CONNECTOR
LDAC CLR PD
J2
1 2
3 4
5 6
7 8
9 10
DB0
DB1
DB2
DB3
DB4
DB5
WR
DGND
EVAL-MBnanoDAC-SDZ Motherboard Connectors to Daughter Board and Serial Interface
VOUT_0
7
V+
6
OP
V–
4
VDD
U7-C
VOUT_1
7
VSS
V+
6
OP
V–
4
Figure 11. EVAL-MBnanoDAC-SDZ
+5V
6
VIN +5VREF
VOUT
U4
ADR445ARMZ
C16
TRIM
1µF
GND
4
REF3
+5VREF
+2_5VREF
VREF_2
+4_096VREF
EX_REF_3
VDD
VREF2
Motherboard Reference Voltage Selector Circuit
GAIN SDA
LDAC
CLR
PD
GAIN
SDA
SPI PMOD CONNNECTOR
J8-1
J4-1 J8-2
VOUT_0
J8-3
J4-2 VOUT_1 J8-4
J8-5
J4-3 J8-6
VOUT_2
J4-4 VOUT_3
J4-5
VOUT_4
J4-6
VOUT_5
J4-7
VOUT_6
J4-8
VOUT_7
VOUT_2
3
VOUT_2 +
1
U7-A
2
–
AD8616ARZ
V+
8
VOUT_3
AD8616ARZ
4
V–
5
VOUT_3 +
7
U7-B
6
–
AD8616ARZ
Motherboard Output Amplifier Circuit
Rev. A | Page 8 of 13
EVAL-AD5678DBZ User Guide
+4.096V
REF198
2 6
VDD V S
OUTPUT
3
SLEEP
U6
GND
4
A
+5VREF
B
+2_5VREF
VREF_3
C
+4_096VREF
EX_REF_4
D VDD
E VREF3
GPIO PMOD CONNNECTOR
J7-1
SYNC
J7-2
SDIN
J7-3
SDO
SCLK J7-4
J7-5
DGND
J7-6
VLOGIC
I2C PMOD CONNNECTOR
J9
1 2
SCL SCL
3 4
SDA SDA
5 6
DGND DGND
7 8
VLOGIC VLOGIC
3
+
VOUT_4
1
U10-A
2
-
AD8608ARUZ
5
VOUT_5 +
7
U10-B
6
–
AD8608ARUZ
10
+
VOUT_6
8
U10-C
9
–
AD8608ARUZ
12
+
VOUT_7
14
U10-D
13
–
AD8608ARUZ
+4.096V
+4_096VREF
C17
1µF
REF4
A
B
VREF_4
C
D
E VREF4
PD
LDAC
GAIN
CLR
DGND
VLOGIC
VOUT_4
VOUT_5
VOUT_6
VOUT_7