Datasheet
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AV
DD
NC
AIN-1
V -4
OUT
REF-B
V -5
OUT
V -6
OUT
AGND-B
AGND-B
OFFSET-B
V -7
OUT
AV
SS
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
AV
DD
NC
AIN-0
V -3
OUT
REF-A
V -2
OUT
V -1
OUT
AGND-A
AGND-A
OFFSET-A
V -0
OUT
AV
SS
NC
V
MON
NC
NC
NC
WAKEUP
LDAC
SDO
NC
SDI
CS
SCLK
DV
DD
IOV
DD
DGND
NC
NC
RSTSEL
USB/BTC
NC
64 63 62 61 60 59 58 57 56 55 54
17
18 19 20
21 22
23
24
25 26
27
53 52 51 50 49
28 29 30 31 32
DAC8218
NC
NC
GPIO-2
CLR
RST
NC
NC
DV
DD
DGND
NC
NC
DGND
GPIO-1
GPIO-0
NC
NC
10 Fm
AV
DD
V -3
OUT
AIN-0
REF-A
V -2
OUT
V -1
OUT
OFFSET-A
V -0
OUT
AV
SS
10 Fm
V
MON
RST
CLR
10kW 10kW 10kW
1 Fm
DV
DD
AV
SS
V -7
OUT
OFFSET-B
10 Fm
V -4
OUT
AIN-1
REF-B
V -5
OUT
V -6
OUT
10 Fm
AV
DD
WAKEUP
LDAC
SDO
SDI
CS
SCLK
DV
DD
1 Fm
1 Fm
IOV
DD
RSTSEL
10kW
DAC8218
www.ti.com
SBAS460A –MAY 2009–REVISED DECEMBER 2009
APPLICATION INFORMATION
BASIC OPERATION
The DAC8218 is a highly-integrated device with high-performance reference buffers and output buffers, greatly
reducing the printed circuit board (PCB) area and production cost. On-chip reference buffers eliminate the need
for a negative external reference. Figure 101 shows a basic application for the DAC8218.
NOTES: AVDD = +15V, AVSS = -15V, DVDD = +5V, IOVDD = +1.8V to +5V, REF-A = +5V, and REF-B = +2.5V.
NOTES: The OFFSET-A and OFFSET-B pins must be connected to the AGND pin when used in unipolar operation.
Figure 101. Basic Application Example
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