ZHCSCF3A May 2014 – August 2014 ADS7950-Q1 , ADS7951-Q1 , ADS7952-Q1 , ADS7953-Q1 , ADS7954-Q1 , ADS7956-Q1 , ADS7957-Q1 , ADS7958-Q1 , ADS7959-Q1 , ADS7960-Q1 , ADS7961-Q1
PRODUCTION DATA.
PIN | I/O | DESCRIPTION | |||||
---|---|---|---|---|---|---|---|
NAME | NUMBER | ||||||
ADS7953-Q1, ADS7957-Q1, ADS7961-Q1 |
ADS7952-Q1, ADS7956-Q1, ADS7960-Q1 |
ADS7951-Q1, ADS7959-Q1 |
ADS7950-Q1, ADS7954-Q1, ADS7958-Q1 |
||||
ADC ANALOG INPUT | |||||||
AINM | 9 | 9 | 9 | 9 | I | ADC input ground | |
AINP | 8 | 8 | 8 | 8 | I | Signal input to ADC | |
DIGITAL CONTROL SIGNALS | |||||||
CS | 31 | 31 | 23 | 23 | I | Chip-select input | |
SCLK | 32 | 32 | 24 | 24 | I | Serial clock input | |
SDI | 33 | 33 | 25 | 25 | I | Serial data input | |
SDO | 34 | 34 | 26 | 26 | O | Serial data output | |
GENERAL PURPOSE INPUTS AND OUTPUTS(1) | |||||||
GPIO0 | 37 | 37 | 29 | 29 | I/O | General-purpose input or output | |
High or low alarm | O | Active high output indicating high alarm or low alarm, depending on programming | |||||
GPIO1 | 38 | 38 | 30 | 30 | I/O | General-purpose input or output | |
Low alarm | O | Active high output indicating low alarm | |||||
GPIO2 | 1 | 1 | 1 | 1 | I/O | General-purpose input or output | |
Range | I | Selects range: High → Range 2; Low → Range 1 | |||||
GPIO3 | 2 | 2 | 2 | 2 | I/O | Genera-purpose input or output | |
PD | I | Active low power-down input | |||||
MULTIPLEXER | |||||||
Ch0 | 28 | 28 | 20 | 20 | I | Analog channels for multiplexer | |
Ch1 | 27 | 27 | 19 | 18 | I | ||
Ch2 | 26 | 26 | 18 | 14 | I | ||
Ch3 | 25 | 25 | 17 | 12 | I | ||
Ch4 | 24 | 24 | 14 | — | I | ||
Ch5 | 23 | 23 | 13 | — | I | ||
Ch6 | 22 | 22 | 12 | — | I | ||
Ch7 | 21 | 21 | 11 | — | I | ||
Ch8 | 18 | 18 | — | — | I | ||
Ch9 | 17 | 17 | — | — | I | ||
Ch10 | 16 | 16 | — | — | I | ||
Ch11 | 15 | 15 | — | — | I | ||
Ch12 | 14 | — | — | — | I | ||
Ch13 | 13 | — | — | — | I | ||
Ch14 | 12 | — | — | — | I | ||
Ch15 | 11 | — | — | — | I | ||
MXO | 7 | 7 | 7 | 7 | O | Multiplexer output | |
NC PINS | |||||||
NC | — | 11 | 15 | 11 | — | Pins internally not connected, do not float these pins | |
12 | 16 | 13 | |||||
13 | — | 15 | |||||
14 | — | 16 | |||||
— | — | 17 | |||||
— | — | 19 | |||||
POWER SUPPLY AND GROUND | |||||||
AGND | 6 | 6 | 6 | 6 | — | Analog ground | |
10 | 10 | 10 | 10 | ||||
19 | 19 | 22 | 22 | ||||
20 | 20 | — | — | ||||
30 | 30 | — | — | ||||
BDGND | 35 | 35 | 27 | 27 | — | Digital ground | |
+VA | 5 | 5 | 5 | 5 | — | Analog power supply | |
29 | 29 | 21 | 21 | ||||
+VBD | 36 | 36 | 28 | 28 | — | Digital I/O supply | |
REFERENCE | |||||||
REFM | 3 | 3 | 3 | 3 | I | Reference ground | |
REFP | 4 | 4 | 4 | 4 | I | Reference input |