sx8725s Semtech Corporation, sx8725s Datasheet - Page 12

• Manufacturer Part Number: sx8725s
• Description: Zoomingadc For Sensing Data Acquisition
• Manufacturer: Semtech Corporation

Revision 1.0
© Semtech
5 Pin Description
ADVANCED COMMUNICATIONS & SENSING
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
AC3
N.C.
N.C.
N.C.
N.C.
VBATT
VSS
READY
D1
SS
MISO/READY
D0
MOSI
SCLK
VPUMP
AC2
Note
February 2011
The bottom pad is internally connected to VSS. It should also be connected to
VSS on PCB to reduce noise and improve thermal behavior.
Type
Analog Input
-
-
-
-
Power Input
Power Input
Digital Output
Digital IO
Analog
Digital Input
Digital Output
Digital IO
Analog
Digital Input
Digital Input
Power IO
Analog Input
Function
Differential sensor input in conjunction with AC2
Not used
Not used
Not used
Not used
2.4V to 5.5V power supply
Chip Ground
Data Ready (active high). Conversion complete flag.
Digital output sensor drive (V
V
Slave select (active low).
Serial data output: Master Input, Slave Output.
Can be combined with Data Ready (active low when Data Ready function
enabled).
Digital output sensor drive (V
V
Serial data input: Master Output, Slave Input .
Serial clock input.
Charge pump output. Raises ADC supply above V
Recommended range for capacitor is 1nF to 10 nF. Connect the capacitor to
ground.
Differential sensor input in conjunction with AC3
REF
REF
Page 12
Input in optional operating mode
Output in optional operating mode
ZoomingADC for sensing data acquisition
BATT
BATT
or V
or V
SS
SS
)
)
BATT
if V
SX8725S
BATT
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DATASHEET
supply is too low.