DAC7654_15 Datasheet, PDF (6/33 Pages) Texas Instruments –

16-Bit, Quad Voltage Output Digital-to-Analog Converter

DAC7654
SBAS263A − NOVEMBER 2003 − REVISED DECEMBER 2005
www.ti.com
Terminal Functions
PIN NAME
DESCRIPTION
1
NC
No Connection
2
NC
No Connection
3
VSS Analog –5V power supply or 0V single supply
4
VCC Analog +5V power supply
5
VOUTA DAC A output voltage
6
VOUTA Connect to VOUTA for unipolar mode
Sense 1
7
VOUTA Connect to VOUTA for bipolar mode
Sense 2
8
AGND Analog ground
9
NC
No connection
10
NC
No connection
11
NC
No connection
12
NC
No connection
13
NC
No connection
14
NC
No connection
15
NC
No connection
16
NC
No connection
17 DGND Digital ground
18
VDD Digital +5V power supply
19 IOVDD Interface power supply
20
SDO Serial data output
21
CS
Chip select, active low
22
CLK Data clock input
23
SDI
Serial data input
24
LOAD DAC input register load control, active low
25
LDAC DAC register load control, rising edge triggered
26
RST Reset, rising edge triggered. Depending on
the state of RSTSEL, the DAC registers are
set to either mid-scale or zero.
27 RSTSEL Reset select. Determines the action of RST.
If high, an RST command sets the DAC
registers to mid-scale (8000h). If low, an RST
command sets the DAC registers to zero
(0000h).
28 DGND Digital ground
29
VDD Digital +5V power supply
30
NC
No connection
31
NC
No connection
32
NC
No connection
33
NC
No connection
34
NC
No connection
35
NC
No connection
PIN NAME
DESCRIPTION
36
NC
No connection
37
NC
No connection
38
NC
No connection
39
NC
No connection
40
NC
No connection
41
NC
No connection
42
NC
No connection
43
NC
No connection
44 VOUTD Connect to VOUTD for bipolar mode
Sense 2
45 VOUTD Connect to VOUTD for unipolar mode
Sense 1
46 VOUTD DAC D output
47
NC
No connection
48
NC
No connection
49 Offset D Connect to Offset D Range 2 for unipolar
Range 1 mode
50 Offset D Connect to Offset D Range 1 for unipolar
Range 2 mode
51 Offset C Connect to Offset C Range 1 for unipolar
Range 2 mode
52 Offset C Connect to Offset C Range 2 for unipolar
Range 1 mode
53 VOUTC Connect to VOUTC for bipolar mode
Sense 2
54 VOUTC Connect to VOUTC for unipolar mode
Sense 1
55 VOUTC DAC C output
56 REF GND Reference ground
57 REF GND Reference ground
58 VOUTB DAC B output
59 VOUTB Connect to VOUTB for unipolar mode
Sense 1
60 VOUTB Connect to VOUTB for bipolar mode
Sense 2
61 Offset B Connect to Offset B Range 2 for unipolar
Range 1 mode
62 Offset B Connect to Offset B Range 1 for unipolar
Range 2 mode
63 Offset A Connect to Offset A Range 1 for unipolar
Range 2 mode
64 Offset A Connect to Offset A Range 2 for unipolar
Range 1 mode
6