ADS1274
ADS1278
www.ti.com
SBAS367–JUNE 2007
ADS1274/ADS1278 PIN ASSIGNMENTS
PAP PACKAGE
HTQFP-64
(TOP VIEW)
1
2
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
AINP2
AINN7(1)
AINP7(1)
AINN8(1)
AINP8(1)
AVDD
AINN2
AINP1
3
4
AINN1
5
AVDD
6
AGND
AGND
7
DGND
PWDN1
PWDN2
PWDN3
PWDN4
PWDN5(1)
PWDN6(1)
PWDN7(1)
PWDN8(1)
MODE0
MODE1
8
TEST0
TEST1
CLKDIV
SYNC
ADS1274/ADS1278
9
NOTE: (1) Boldface pin names indicate additional pins for
10
11
12
13
14
15
16
the ADS1278; see pin descriptions.
DIN
DOUT8(1)
DOUT7(1)
DOUT6(1)
DOUT5(1)
(PowerPAD Outline)
ADS1274/ADS1278 PIN DESCRIPTIONS
PIN
NAME
NO.
FUNCTION
DESCRIPTION
Analog ground; connect to DGND using a single plane.
6, 43, 54,
58, 59
AGND
Analog ground
AINP1
AINP2
AINP3
AINP4
AINP5
AINP6
AINP7
AINP8
3
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
1
63
61
51
49
47
45
ADS1278:
ADS1274:
AINP[8:1] Positive analog input, channels 8 through 1.
AINP[8:5] Connected to internal ESD rails. The inputs may float.
AINP[4:1] Positive analog input, channels 4 through 1.
6
Copyright © 2007, Texas Instruments Incorporated
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