Datasheet
AINN7
(1)
AINP7
(1)
AINN8
(1)
AINP8
(1)
AVDD
AGND
PWDN1
PWDN2
PWDN3
PWDN4
PWDN5
(1)
PWDN6
(1)
PWDN7
(1)
PWDN8
(1)
MODE0
MODE1
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
ADS1274/ADS1278
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)
ADS1274
ADS1278
SBAS367F –JUNE 2007–REVISED FEBRUARY 2011
www.ti.com
ADS1274/ADS1278 PIN ASSIGNMENTS
PAP PACKAGE
HTQFP-64
(TOP VIEW)
(1) Boldface pin names indicate additional pins for the ADS1278; see Table 1.
Table 1. ADS1274/ADS1278 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 ADS1278: AINP[8:1] Positive analog input, channels 8 through 1.
AINP4 61 Analog input
AINP5 51 Analog input ADS1274: 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
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Product Folder Link(s): ADS1274 ADS1278