參數(shù)資料
型號： DAC7654YTG4
廠商： TEXAS INSTRUMENTS INC
元件分類： DAC
英文描述： SERIAL INPUT LOADING, 12 us SETTLING TIME, 16-BIT DAC, PQFP64
封裝： GREEN, PLASTIC, LQFP-64
文件頁數(shù)： 30/33頁
文件大小： 804K
代理商： DAC7654YTG4
DAC7654
SBAS263A NOVEMBER 2003 REVISED DECEMBER 2005
www.ti.com
6
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
Sense 1
Connect to VOUTA for unipolar mode
7
VOUTA
Sense 2
Connect to VOUTA for bipolar mode
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
Sense 2
Connect to VOUTD for bipolar mode
45
VOUTD
Sense 1
Connect to VOUTD for unipolar mode
46
VOUTD
DAC D output
47
NC
No connection
48
NC
No connection
49
Offset D
Range 1
Connect to Offset D Range 2 for unipolar
mode
50
Offset D
Range 2
Connect to Offset D Range 1 for unipolar
mode
51
Offset C
Range 2
Connect to Offset C Range 1 for unipolar
mode
52
Offset C
Range 1
Connect to Offset C Range 2 for unipolar
mode
53
VOUTC
Sense 2
Connect to VOUTC for bipolar mode
54
VOUTC
Sense 1
Connect to VOUTC for unipolar mode
55
VOUTC
DAC C output
56
REF GND
Reference ground
57
REF GND
Reference ground
58
VOUTB
DAC B output
59
VOUTB
Sense 1
Connect to VOUTB for unipolar mode
60
VOUTB
Sense 2
Connect to VOUTB for bipolar mode
61
Offset B
Range 1
Connect to Offset B Range 2 for unipolar
mode
62
Offset B
Range 2
Connect to Offset B Range 1 for unipolar
mode
63
Offset A
Range 2
Connect to Offset A Range 1 for unipolar
mode
64
Offset A
Range 1
Connect to Offset A Range 2 for unipolar
mode
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