- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1970 > SX8725E083TDT (Semtech)IC DAS PRESS/TEMP SENS 12MLPD PDF資料下載
參數(shù)資料
| 型號(hào)： | SX8725E083TDT |
| 廠商： | Semtech |
| 文件頁數(shù)： | 14/53頁 |
| 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-WFDFN 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)品目錄頁面： | 585 (CN2011-ZH PDF) |
| 其它名稱： | SX8725E083TDTDKR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當(dāng)前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁
ADVANCED COMMUNICATIONS & SENSING
V1.8 2009 Semtech Corp.
www.semtech.com
21
SX8725
ZoomingADC for Pressure and Temperature Sensing
PGA & ADC Enabling
Depending on the application objectives, the user may enable or bypass each PGA stage. This is done
according to the word ENABLE and the coding given in Table 4. To reduce power dissipation, the ADC can also
be inactivated while idle.
PGA1
The first stage can have a buffer function (unity gain) or provide a gain of 10 (see Table 5). The voltage VD1 at
the output of PGA1 is:
IN
D
V
GD
V
=
1
(V)
Equation 5
where GD1 is the gain of PGA1 (in V/V) controlled with the bit PGA1_GAIN.
PGA2
The second PGA has a finer gain and offset tuning capability, as shown in Table 6 and Table 7. The voltage VD2
at the output of PGA2 is given by:
ADC
REF
D
V
GDoff
V
GD
V
,
2
1
2
=
(V)
Equation 6
where GD2 and GDoff2 are respectively the gain and offset of PGA2 (in V/V). These are controlled with the
words PGA2_GAIN[1:0] and PGA2_OFFSET[3:0].
PGA3
The finest gain and offset tuning is performed with the third and last PGA stage, according to the coding of
Table 8 and Table 9. The output of PGA3 is also the input of the ADC. Thus, similarly to PGA2, we find that the
voltage entering the ADC is given by:
ADC
REF
D
ADC
IN
V
GDoff
V
GD
V
,
3
2
3
,
=
(V)
Equation 7
where GD3 and GDoff3 are respectively the gain and offset of PGA3 (in V/V). The control words are
PGA3_GAIN[6:0] and PGA3_OFFSET[6:0]. To remain within the signal compliance of the PGA stages, the
condition:
DD
D
V
<
2
1 ,
(V)
Equation 8
must be verified.
Finally, combining equations 5 to 7 for the three PGA stages, the input voltage VIN,ADC of the ADC is related to
VIN by:
ADC
REF
TOT
IN
TOT
ADC
IN
V
GDoff
V
GD
V
,
=
(V)
Equation 9
where the total PGA gain is defined as:
1
2
3
GD
TOT
=
(V/V)
Equation 10
and the total PGA offset is:
2
3
GDoff
GD
GDoff
TOT
+
=
(V/V)
Equation 11
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SY10E445JC | IC CONV 4-BIT SER/PAR 28-PLCC |
| SY10E446JC TR | IC CONV 4-BIT SER/PAR 28-PLCC |
| SY54017ARMG TR | IC MULTIPLEXER DUAL 1X1 16MLF |
| SY54017RMG TR | IC MULTIPLEXER DUAL 1X1 16MLF |
| SY54023ARMG TR | IC CROSSPOINT SWITCH 2X2 16MLF |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SX8725E083TRT | 功能描述:IC DAS PRESSURE/TEMP SENS 12MLPD RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測(cè)器接口 系列:ZoomingADC™ 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件 |
| SX8725S | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:ZoomingADC for sensing data acquisition ADVANCED COMMUNICATIONS & SENSING |
| SX8725SWLTDT | 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:1 INPUTS ZOOMING ADC WITH SPI |
| SX8733 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Precision Diode Digital Temperature For Up To 3 External Sensors |
| SX8733_11 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Precision Diode Digital Temperature For Up To 3 External Sensors |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。