Datasheet

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54321
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ti
12500 TI Boulevard. Dallas, Texas 75243
Title:
SHEET: OF:
FILE: SIZE:
DATE:
REV:
30-Nov-2004
Drawn By:
Engineer:
Revision History
REV ECN Number Approved
DAC7631_REV A.SCH
DOCUMENTCONTROL #
C1
0.1µF
C7
0.1µF
C2
0.1µF
+5VA
CE
SCLK
LDAC
RST
RSTSEL
R6
10K
VSS
2
3
6
4
71
5
U2
Op Amp
VCC
C10
0.01µF
C9
0.01µF
R12
10K
W15
C12
1nF
W5
R8
2K
DAC_VOUT
VCC VDD
VDD
VCC
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
J4
RSTSEL
RST
FSX
CS
1 2
3 4
5 6
7 8
9 10
J6
C6
10µF
C4
10µF
C5
10µF
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
J2
DAC7631 EVM
A
1
J. PARGUIAN
-5VA
R4
100
DAC_VOUT
VSS
VSS
GPIO5
1
SDI
SCLK
SDO
R13
10K
R5
10K
W14
W16
SDO
RSTSEL
RST
FSX
CS
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
P2
GPIO5
SCLK
SDI
CLKR CLKR
FSR FSR
DR
DR
TP3 TP4
1 2 3
J1
1 2 3
J3
VD2
GPIO0 GPIO0
JP4 JP4
GPIO1 GPIO1
JP8 JP8
JP10 JP10
JP12 JP12
GPIO4 GPIO4
JP16 JP16
JP18 JP18
JP20 JP20
+5VA -5VA VDD+3.3VD VD2 VD1
++
--
W20
W2
Vout
LOAD
TP5TP1
R1
125
VoutSense
VSS
C3
470pF
TP6
1
2
3
4
J5
VCC
TP7
C8
0.1µF
SDO
7
CLK
9
SDI
8
VDD
6
VrefL
3
DGND
5
CS
10
LDAC
11
RST
13
RSTSEL
14
LOAD
12
AGND
19
VoutSense
17
Vout
16
VCC
20
VSS
18
VrefHSense
2
VrefH
1
VrefLSense
4
U1
DAC7631
3
2
1
84
U3A
OPA2234
5
6
7
U3B
OPA2234
C16
2200pF
12
C17
2200pF
C18
1000pF
C19
1000pF
R11
100
R14
100
C11
0.1µF
C13
0.1µF
VrefH
VrefH
VrefL
VrefHSense
OUT
2
GND
3
IN
1
REF1
REF3025
Vref
1
Iin
2
Iret
3
Io
4
E
5
B
6
V+
7
Vreg
8
U4A
XTR115
VrefHSense
VrefLSense
VrefLSense
VrefL
4
3
1
52
U5
OPA703
R3
10K
R2
10K
C15
0.1µF
C14
0.1µF
+5VA
-5VA
+5VA
Q2
MMBT3904_TRANS
TP2
TP8
Q1
MMBT3904_TRANS
W9
W7
R16
312.5k
Vout
Vout
W6
W8
VoutSense
R15
12.5k
+REFin
-REFin
+5VA
W4
GPIO1
LOAD
W1
W3
CS
FSX
GPIO4
GPIO0
R9
0
R10
0
R7
0
W10
+REFin
W11
-REFin
6464403