Datasheet

A
B
C
D
D
C
B
A
ti
12500 TI Boulevard. Dallas, Texas 75243
Title:
SHEET: OF:
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DATE:
REV:
24-Sep-2007
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Engineer:
Revision History
REV ECN Number Approved
DAC8871_Rev_A .Sch
DOCUMENTCONTROL #
C5
0.1µF
VCC
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
J1
1 2
3 4
5 6
7 8
9 10
J3
C2
10µF
DAC8871 EVM
A
1
Jojo Parguian
VSS
1
+5VA -5VA +5VD+3.3VD VD2 VD1
C7
0.1µF
C10
0.1µF
W6
6488682
R6
10K
Jojo Parguian
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
J2
VDD
VCC
VSS
VDD
R1
100
C1
DNP
C4
10µF
C3
10µF
TP6TP5
EXT_REF_INP
2 Prototype JLP
Other Op-Amps
Recommended:
OPA277
SO-8
CS
12
SDI
14
SCLK
13
LDAC
15
DGND
16
AGND
4
VDD
9
VrefHS
6
VrefHF
5
Vout
1
VrefLS
7
VrefLF
8
VCC
2
VSS
3
RST
11
RSTSEL
10
U1
DAC8871SPW
R9
6.2K
VCC
VSS
C8
0.1µF
C9
0.1µF
W2
W4
R11
10K
R10
10K
VDD
C14
0.1µF
VCC
REF
1
-IN
2
+IN
3
V-
4
Sense
5
Output
6
V+
7
NC
8
U4
INA105
VIN
2
GND
4
OUT
6
TRIM
5
TEMP
3
N/C
1
N/C
7
N/C
8
U3
REF102
R3
DNP
R8
DNP
C6
0.1µF
C15
0.1µF
VSS
VCC
W3
TP1
+REF
-REF
+
C12
1uF
R5
DNP
R7
DNP
R2
DNP
R4
DNP
VCC
W1
1 2
W7
1 2
W8
R26
0 ohm
R27
3K
C13
0.1µF
TP2
W5
EXT_REF_INM
3
2
6
7 4
U2
OPA211
2
3
1
411
U5A
OPA4227UA
5
6
7
U5B
OPA4227UA
10
9
8
U5C
OPA4227UA
12
13
14
U5D
OPA4227UA
C11
0.1µF
VSS
W9
VDD
DAC8871EVM BOM = 6488680
DAC8871EVM PWB = 6488681
DAC8871EVM DDB (BLOCK) = 6488682
DAC8871EVM PCA = 6488683
DAC8871EVM KIT (BLOCK) = 6488684
DAC8871EVM SFT = 6488685
NOTES:
(1) U5B and RP1 should only be utilize as replacement circuit
When INA105 is not available. See BOM for assembly
instructions.
RP1
25K
U3_+10V
U3_+10V
# See Note (1) In this schematic
TP4
TP3
R12
50
TP7
RST
R13
0
R14
0
A Production Release JLP
GPIO2/TOUT
GPIO1/INT
CS
SCLK
FS
SDI