參數(shù)資料
型號(hào): SX8723E083TDT
廠商: Semtech
文件頁(yè)數(shù): 2/53頁(yè)
文件大?。?/td> 0K
描述: IC DAS PRESS/TEMP SENS 12MLPD
標(biāo)準(zhǔn)包裝: 1
系列: ZoomingADC™
類型: 數(shù)據(jù)采集系統(tǒng)(DAS)
輸入類型: 差分
輸出類型: 數(shù)字
接口: I²C
安裝類型: 表面貼裝
封裝/外殼: 12-BFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 12-MLPD
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面: 585 (CN2011-ZH PDF)
其它名稱: SX8723E083TDTDKR
ADVANCED COMMUNICATIONS & SENSING
V1.8 2009 Semtech Corp.
www.semtech.com
10
SX8723
ZoomingADC for Pressure and Temperature Sensing
Circuit Description
General Description
The SX8723 is a complete low-power acquisition path with programmable gain, acquisition speed and
resolution.
Block Diagram
Figure 3 - SX8723 Block Diagram
VREF
The internally generated VREF is a trimmed bandgap reference with a nominal value of 1.22V that provides a
stable voltage reference for the ZoomingADC.
This reference voltage is directly connected to one of the ZoomingADC reference multiplexer inputs.
The bandgap voltage stability is only guaranteed for VBATT voltages of 3V and above. As VBATT drops down to
2.4V, the bandgap voltage could reduce by up to 50mV.
The bandgap has relatively weak output drive so it is recommended that if the bandgap is required as a signal
input then PGA1 must be enabled with Gain = 1.
AC0
S
IG
N
A
L
M
U
X
+
-
+
-
R
E
F
M
U
X
READY
AC5
AC4
AC3
AC2
AC1
PGA
ADC
VREF
+
-
ZoomingADC
TM
VPUMP
VBATT
SCL
SDA
D1/REFIN
D0/REFOUT
SX8723
VSS
CONTROL LOGIC
GPIO
CHARGE
PUMP
4MHz
OSC
2-wire
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相關(guān)代理商/技術(shù)參數(shù)
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