SX8723 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SX8723' PDF : 53 Pages View PDF
SX8723
ZoomingADC™ for Pressure and Temperature Sensing
ADVANCED COMMUNICATIONS & SENSING
Pin Configuration
Marking Information
8723
yyww
xxxxx
xxxxx
Eyww = Date code
xxxx = Semtech lot number
Pin Description
Pin Name
Type
Function
1 AC4
Analog Input
2 AC5
Analog Input
3
VBATT
Power Input
4
VSS
Power Input
5 READY Digital Output
Differential sensor input in conjunction with AC5
Differential sensor input in conjunction with AC4
2.4V to 5.5V power supply
Chip Ground
Conversion complete flag.
6 D1
7 D0
8 SDA
9 SCL
Digital IO + analog
Digital IO + analog
Digital IO
Digital IO
Digital output sensor drive (VBATT or VSS)
VREF Input in optional operating mode
Digital output sensor drive (VBATT or VSS)
VREF Output in optional operating mode
I2C Data
I2C Clock. Up to 400KHz.
10 VPUMP
Power IO
Charge pump output. Raises ADC supply above VBATT if VBATT supply is too low.
Recommended range for capacitor is 1nF to 10 nF. Connect the capacitor to GND.
11 AC2
Analog Input
Differential sensor input in conjunction with AC3
12 AC3
Analog Input
Differential sensor input in conjunction with AC2
13 VSS
Power Input
Bottom ground pad (1)
Notes:
(1) This pin is internally connected to VSS. It should also be connected to VSS on PCB to reduce noise and improve thermal behavior.
V1.5 © 2007 Semtech Corp.
9
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