參數(shù)資料
型號(hào): SX8725E083TRT
元件分類: ADC
英文描述: 3-CH 16-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO12
封裝: 4 X 4 MM, ROHS COMPLIANT, MLPD-12
文件頁(yè)數(shù): 27/53頁(yè)
文件大?。?/td> 3966K
代理商: SX8725E083TRT
ADVANCED COMMUNICATIONS & SENSING
V1.8 2009 Semtech Corp.
www.semtech.com
33
SX8725
ZoomingADC for Pressure and Temperature Sensing
Application Hints
Recommended Operation Mode and Registers Settings
Operation Mode
Parameter
Value
Units
Analog multiplexers
VMUX
VBATT
AMUX
VINP = AC3 & VINN = AC2
PGA
PGA1 Gain
OFF
V/V
PGA2 Gain
OFF
V/V
PGA3 Gain
1
V/V
Total Offset
0
V/V
PGA2 Offset
OFF
V/V
PGA3 Offset
0
V/V
ADC Bias
50
%
PGA Bias
50
%
ADC
fs
250
kHz
Resolution
16
Bits
OSR
512
OverSamples / ElementaryConversion
NELCONV
2
ElementaryConversion / Conversion
Continuous mode
ON
-
Table 30 - Recommended Operation Mode Values
Registers Settings
Bit Position
Register Name
7
6
5
4
3
2
1
0
Hexadecimal
Value
RegACOutLsb
OUT[7:0]
XXXXXXXX
RegACOutMsb
OUT[15:8]
XXXXXXXX
RegACCfg0
START
0
SET_NELC[1:0]
01
SET_OSR[2:0]
110
1
-
0
0x3A
RegACCfg1
IB_AMP_ADC[1:0]
01
IB_AMP_PGA[1:0]
01
ENABLE[3:0]
1001
0x59
RegACCfg2
FIN[1:0]
10
PGA2_GAIN[1:0]
PGA2_OFFSET[3:0]
0000
0x80
RegACCfg3
PGA1_G
0
PGA3_GAIN[6:0]
0001100
0x0C
RegACCfg4
-
0
PGA3_OFFSET[6:0]
0000000
0x00
RegACCfg5
BUSY
0
DEF
0
AMUX[4:0]
00001
VMUX
0
0x02
Table 31 - Registers Settings
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