Datasheet
U8
MAX1840
C30
1µF
VDDIO
9
+3.3V
C31
1µF
2
6
GND
RIN
DVCC VCC
CIN
DATA
SHDN
RST
IN
7
U1_MOSI
CLK
8
U1_SCL
IN
IO
10
U1_SDAIN
+3.3V
4
3
R18
1.5kI
U2_SDA
U2_SCL
1
IN
R24
1.5kI
U2_MOSI
IN
R19
1.5kI
IN
U9
MAX1840
U1
MAX5825A
C32
1µF
VDDIO
9
+3.3V
C33
1µF
2
6
GND
RIN
DVCC VCC
CIN
DATA
SHDN
RST
IN
7
U1_CLRB
IO
10
U1_MISOIN
+3.3V
4
3
R20
1.5kI
U2_MISO
MAXQ_K2
1
IN
R23
1.5kI
MAXQ_K1
IN
R21
1.5kI
IN
CLK
8
U1_LDACB
IN
U10
MAX1840
C34
1µF
VDDIO
9
+3.3V
C35
1µF
2
6
GND
RST
CLK
IO
RIN
DVCC VCC
CIN
DATA
SHDN
IN
7
U1_CSB
8
U1_SCLK
IN
+3.3V
4
3
R22
1.5kI
MAXQ_K3
U2_SCLK
1
5
+3.3V
IN
R25
1.5kI
U2_CSB
IN
R26
1.5kI
IN
10
U1_IRQ
IN
GND
IN
SDA
H2
1221
IN
SCL
33
IN
ADDR0
55
IN
ADDR1
VDDIO
77
99
IN
U1_IRQ
1111
13
IN
1515
13
IN
1717
44
66
88
10 10
12 12
14 14
16 16
18 18
CLR
LDAC
C2
0.1µF
C1
10µF
VDD
10
19
VDD
GND
DAC0
2
DAC0
C6
OPEN
3
DAC1
C7
OPEN
4
DAC2
C8
OPEN
5
DAC3
C9
OPEN
6
DAC4
C37
OPEN
7
DAC5
C38
OPEN
8
DAC6
C39
OPEN
9
DAC7
C40
OPEN
DAC1
DAC2
DAC3
DAC4
DAC5
DAC6
DAC7
ININ
IN
SDA
JU1
U1_CSB
U1_SDA
JU7
VDDIO
VDDIO
R1
4.7kI
1
21
215
3
1
IN
IN
IN
SCL
JU2
U1_SCLK
U1_SCL
JU8
R2
4.7kI
1
21
2
14
3
IN
VDDIO
1
INADDR0
JU3
2
3
4
U1_MOSI
13
IN
R3
1MI
JU6
21
17
IN
U1_CLRB
R29
100kI
JU12
VDD
21
20
VDDIO
C3
0.1µF
11
16
IN
R28
4.7kI
U1_IRQ
IRQ
IN
VDDIO
1
JU5
2
3
4
U1_LDACB
IN
LDAC
18
M/Z
LDAC
IRQ
CLR
CLR
VDDIO
IN
VDDIO
1
INADDR1
JU4
2
3
4
U1_MISO
12
ADDR1
ADDR0
SCL
SDA
REF
REF
1236
7
5
8
I.C.
N.C.
OUT
TRIM
I.C.
IN
TEMP
U7
MAX6173
GND
C5
0.1µF
IN
3
2
4
1
JU14
21
JU11
REF_EXT
GND
C36
0.1µF
C4
100pF
GND
GND
3
VDD
21
JU10
VDD_EXT
GND
+3.3V
3
IN
21
JU13
+5V
3
VDDIO
21
JU9
VDDIO_EXT
GND
GNDS
+3.3V
5
+3.3V
5
+3.3V
VDDIO
VDDIO
________________________________________________________________ Maxim Integrated Products 12
Evaluates: MAX5823/MAX5824/
MAX5825A/MAX5825B
MAX5825A Evaluation Kit
Figure 7a. MAX5825A EV Kit Schematic (Sheet 1 of 2)