Datasheet
ADS1174/ADS1178 PIN ASSIGNMENTS
AINN7
(1)
AINP7
(1)
AINN8
(1)
AINP8
(1)
AVDD
AGND
PWDN1
PWDN2
PWDN3
PWDN4
PWDN5
(1)
PWDN6
(1)
PWDN7
(1)
PWDN8
(1)
MODE
NC
AINP2
AINN2
AINP1
AINN1
AVDD
AGND
DGND
TEST0
TEST1
CLKDIV
SYNC
DIN
DOUT8
(1)
DOUT7
(1)
DOUT6
(1)
DOUT5
(1)
AINN3
AINP3
AINN4
AINP4
AVDD
AGND
VREFN
VREFP
VCOM
AGND
AVDD
AINP5
(1)
AINN6
(1)
AINP6
(1)
AINN5
(1)
DOUT4
DOUT3
DOUT2
DOUT1
DGND
IOVDD
IOVDD
DGND
DGND
DVDD
CLK
SCLK
DRDY
/FSYNC
FORMAT2
FORMAT1
FORMAT0
ADS1174/ADS1178
AGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
(PowerPADOutline)
NOTE:(1) pinnamesarefor only;Boldface ADS1178
seepindescriptions.
ADS1174
ADS1178
www.ti.com
........................................................................................................................................ SBAS373B – OCTOBER 2007 – REVISED SEPTEMBER 2008
PAP PACKAGE
HTQFP-64
(TOP VIEW)
ADS1174/ADS1178 PIN DESCRIPTIONS
PIN
NAME NO. FUNCTION DESCRIPTION
6, 43, 54,
AGND Analog ground Analog ground; connect to DGND using a single plane.
58, 59
AINP1 3 Analog input
AINP2 1 Analog input
AINP3 63 Analog input ADS1178: AINP[8:1] Positive analog input, channels 8 through 1.
AINP4 61 Analog input
AINP5 51 Analog input ADS1174: AINP[8:5] Connected to internal ESD rails. The inputs may float.
AINP[4:1] Positive analog input, channels 4 through 1.
AINP6 49 Analog input
AINP7 47 Analog input
AINP8 45 Analog input
Copyright © 2007 – 2008, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): ADS1174 ADS1178