Datasheet

ADS1158
SBAS429D –JUNE 2008– REVISED MARCH 2011 www.ti.com
PIN ASSIGNMENTS (continued)
ANALOG/DIGITAL
PIN # NAME INPUT/OUTPUT DESCRIPTION
21 GPIO7 Digital I/O General-purpose digital input/output 7
22 SCLK Digital input SPI interface clock input: data clocked in on rising edge, clocked out on falling edge.
23 DIN Digital input SPI interface data input: data are input to the device.
24 DOUT Digital output SPI interface data output: data are output from the device.
25 DRDY Digital output Data ready output: active low.
26 START Digital input Start conversion input: active high.
27 CS Digital input SPI interface chip select input: active low.
28 DVDD Digital Digital power supply: 2.7V to 5.25V
29 DGND Digital Digital ground
30 VREFN Analog input Reference input negative
31 VREFP Analog input Reference input positive
32 AINCOM Analog input Analog input common: common input pin to all single-ended inputs.
33 AIN15 Analog input Analog input 15: single-ended channel 15, differential channel 7 (–)
34 AIN14 Analog input Analog input 14: single-ended channel 14, differential channel 7 (+)
35 AIN13 Analog input Analog input 13: single-ended channel 13, differential channel 6 (–)
36 AIN12 Analog input Analog input 12: single-ended channel 12, differential channel 6 (+)
37 AIN11 Analog input Analog input 11: single-ended channel 11, differential channel 5 (–)
38 AIN10 Analog input Analog input 10: single-ended channel 10, differential channel 5 (+)
39 AIN9 Analog input Analog input 9: single-ended channel 9, differential channel 4 (–)
40 AIN8 Analog input Analog input 8: single-ended channel 8, differential channel 4 (+)
41 ADCINN Analog input ADC differential input (–)
42 ADCINP Analog input ADC differential input (+)
43 MUXOUTN Analog output Multiplexer differential output (–)
44 MUXOUTP Analog output Multiplexer differential output (+)
45 AIN7 Analog input Analog input 7: single-ended channel 7, differential channel 3 (–)
46 AIN6 Analog input Analog input 6 : single-ended channel 6, differential channel 3 (+)
47 AIN5 Analog input Analog input 5: single-ended channel 5, differential channel 2 (–)
48 AIN4 Analog input Analog input 4: single-ended channel 4, differential channel 2 (+)
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