Datasheet

ADS7950, ADS7951, ADS7952, ADS7953
ADS7954, ADS7955, ADS7956, ADS7957
ADS7958, ADS7959, ADS7960, ADS7961
SLAS605A –JUNE 2008–REVISED JANUARY 2010 www.ti.com
TERMINAL FUNCTIONS - TSSOP PACKAGES (continued)
DEVICE NAME
ADS7953 ADS7952 ADS7951 ADS7950
ADS7957 ADS7956 ADS7955 ADS7954 PIN NAME I/O FUNCTION
ADS7961 ADS7960 ADS7959 ADS7958
PIN NO.
— 11, 12, 13, 15, 16 11, 13, 15, — — Pins internally not connected, do not float these pins
14 16, 17, 19
TERMINAL FUNCTIONS - QFN PACKAGES
DEVICE NAME
ADS7953 ADS7952 ADS7951 ADS7950
ADS7957 ADS7956 ADS7955 ADS7954 PIN NAME I/O FUNCTION
ADS7961 ADS7960 ADS7959 ADS7958
PIN NO.
REFERENCE
31 31 24 24 REFP I Reference input
30 30 23 23 REFM I Reference ground
ADC ANALOG INPUT
3 3 4 4 AINP I Signal input to ADC
4 4 5 5 AINM I ADC input ground
MULTIPLEXER
2 2 3 3 MXO O Multiplexer output
20 18 13 11 Ch0 I Analog-input channels for multiplexer
19 17 12 10 Ch1 I
18 16 11 9 Ch2 I
17 15 10 8 Ch3 I
16 14 9 - Ch4 I
15 13 8 - Ch5 I
14 12 7 - Ch6 I
13 11 6 - Ch7 I
12 10 - - Ch8 I
11 9 - - Ch9 I
10 8 - - Ch10 I
9 7 - - Ch11 I
8 - - - Ch12 I
7 - - - Ch13 I
6 - - - Ch14 I
5 - - - Ch15 I
DIGITAL CONTROL SIGNALS
23 23 16 16 CS I Chip select input
24 24 17 17 SCLK I Serial clock input
25 25 18 18 SDI I Serial data input
26 26 19 19 SDO O Serial data output
GENERAL PURPOSE INPUT / OUTPUT: This pin has programmable dual functionality. Refer to Table 8 for functionality programming
29 29 22 22 GPIO0 I/O General purpose input or output
High alarm or O Active high output indicating high alarm or high/low
High/Low alarm depending on programming
alarm
POWER SUPPLY AND GROUND
21, 32 21, 32 1, 14 1, 14 +VA — Analog power supply
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Product Folder Link(s): ADS7950, ADS7951, ADS7952, ADS7953 ADS7954, ADS7955, ADS7956, ADS7957 ADS7958,
ADS7959, ADS7960, ADS7961