- 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： | SX8725E083TDT |
| 廠商： | Semtech |
| 文件頁數(shù)： | 4/53頁 |
| 文件大小： | 0K |
| 描述： | IC DAS PRESS/TEMP SENS 12MLPD |
| 標準包裝： | 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 |
| 供應商設備封裝： | 12-MLPD |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 585 (CN2011-ZH PDF) |
| 其它名稱： | SX8725E083TDTDKR |
第1頁第2頁第3頁當前第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
12
SX8725
ZoomingADC for Pressure and Temperature Sensing
Charge Pump
This block generates a supply voltage able to power the analog switch drive levels on the chip.
The minimum acceptable switch supply is 3V which means that if VBATT drops below 3V then the block should
be activated to generate a voltage of 3V or above. If VBATT is greater than 3V then VBATT may be switched
straight through to the VPUMP output.
If control input bit MULT_FORCE_OFF = 1 in RegMode register then the charge pump is disabled and VBATT is
permanently connected to VPUMP.
If control input bit MULT_FORCE_ON = 1 in RegMode register then the charge pump is permanently enabled.
This overrides MULT_FORCE_OFF bit in RegMode register.
If MULT_FORCE_ON = 0 and MULT_FORCE_OFF = 0 bits in RegMode register then the charge pump will
start if VBATT drops below 3V, otherwise VBATT will be switched directly through to VPUMP.
These controls are supplied to give the user the option of fixing the charge pump state to avoid it turning off and
on when VBATT is close to 3V.
The cell will use the on-chip bandgap reference and comparator to detect when VBATT is too low. When
activated, the block will use the charge pump to boost the VBATT voltage to above 3V but with diode limiting to
ensure that the generated voltage never exceeds 0.7V above VBATT.
An external capacitor is required on VPUMP whenever the power supply is supposed to be less or drop below 3V.
This capacitor should be large enough to ensure that generated voltage is smooth enough to avoid affecting
conversion accuracy but not so large that it gives an unacceptable settling time. A recommended value is
around 2.2nF.
The block will also indicate when the pumped output voltage is sufficiently high to allow ADC conversions to be
started. This will be a simple comparison which will give a ready signal when the VPUMP output is 3V or above.
相關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 |
相關代理商/技術參數(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 - 傳感器和探測器接口 系列:ZoomingADC™ 其它有關文件:Automotive Product Guide 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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） 供應商設備封裝: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。