sx8724s Semtech Corporation, sx8724s Datasheet - Page 12

• Manufacturer Part Number: sx8724s
• 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
AC6
AC7
AC4
AC5
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
Analog Input
Analog Input
Analog Input
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
Differential sensor input in conjunction with AC7
Differential sensor input in conjunction with AC6
Differential sensor input in conjunction with AC5
Differential sensor input in conjunction with AC4
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). This pin is set as output low during the POR sequence.
Serial data out (Master Input, Slave Output), or data out combined with Data
Ready (active low when Data Ready function enabled).
Digital output sensor drive (V
V
Serial data in (Master Output, Slave Input)
Serial clock from the Master.
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
Output in optional operating mode
Input in optional operating mode
ZoomingADC for sensing data acquisition
BATT
BATT
or V
or V
SS
SS
)
)
BATT
if V
SX8724S
BATT
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DATASHEET
supply is too low.