參數(shù)資料
型號： ADS7953SBRHBT
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 16-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC32
封裝： GREEN, PLASTIC, PQFP-32
文件頁數(shù)： 27/63頁
文件大?。?/td> 1734K
代理商： ADS7953SBRHBT
DeviceoperationinManualor
Auto
-1 mode
Changeto Auto
-2 mode ?
* Sample: Samples andconverts channel selectedin ‘framen-1’
* Mux
: Selects channel incremented fromprevious frameas per Auto-1 sequence, orchannel
programmedinprevious frameincaseofmanualmode.
. This channel willbeacquired inthis frame
andsampled atstart of ‘framen +1’
* Range: As programmedin ‘framen-1’. Applies tochannel selectedforacquisitionincurrent frame
.
* SDI
: Programmingfor ‘framen+1’
DI15..12 = 0011 binary …. Selects Auto-2 mode
DI11=1 enables programmingof ‘rangeandGPIO’
DI10 = x, Deviceautomatically resets tochannel 0.
DI6.. As perrequiredrangeforchannel tobeselected
DI5=0 .. Nopowerdown
DI4..0… as perGPIOsettings
*SDO : DO15..0 address(orGPIOdata) & conversion dataofchannel selectedin ‘framen -1’
* GPIO :
O/P: latched on CS fallingedgeas perDI 3..0 writteninframen -1’
I/P: Inputstatus latched onfallingedgeof CS andtransferred serially onSDOinthesame
frame
No
Yes
CS
Continueoperationin Auto -2 mode
CS
Frame: n-1
Frame: n
Request
for Auto-2
mode
* Sample: Samples andconverts channel selectedin ‘framen’
* Mux
: Selects channel0 (Auto-2 sequencealways starts withCh -0); this channel willbeacquired
inthis frameandsampled atstart of ‘framen+2’
* Range: As programmedin ‘framen’. Applies tochannel selectedforacquisitionincurrent frame
.
* SDI
: Programmingfor ‘framen +2’
DI15..12 = 0011 binary …. Tocontinue in Auto -2 mode
DI11=1 enables programmingof ‘rangeandGPIO’
DI10 =0, nottoreset channel sequence
DI6.. As perrequiredrangeforchannel tobeselected
DI5=0 .. Nopowerdown
DI4..0… as perGPIOsettings
*SDO : DO15..0 address(orGPIOdata) & conversion dataofchannel selectedin ‘framen’
* GPIO :
O/P: latched on CS fallingedgeas perDI 3..0 writteninframe ‘n’
I/P: Inputstatus latched onfallingedgeof CS andtransferred serially onSDOinthesame
frame
CS
Frame:
n+1
Entry into
Auto-2
Mode
* Sample: Samples andconverts channel 0
* Mux
: Selects next higherchannel in Auto -2 sequence, this channel willbeacquired inthis frame
andsampled atstart of ‘framen+3’
* Range: As programmedin ‘framen+1’. Applies tochannel selectedforacquisitionincurrent frame.*
SDI
: Programmingfor ‘framen+3’
DI15..12 = 0011 binary …. Tocontinue in Auto -2 mode
DI11=1 enables programmingof ‘rangeandGPIO’
DI10 =0 nottoreset channel sequence
DI6.. As perrequiredrangeforchannel tobeselected
DI5=0 .. Nopowerdown
DI4..0… as perGPIOsettings
*SDO : DO15..0 address(orGPIOdata) & conversion dataofchannel selectedin ‘framen+1’
* GPIO :
O/P: latched on CS fallingedgeas perDI 3..0 writteninframen+1’
I/P: Inputstatus latched onfallingedgeof CS andtransferred serially onSDOinthesame
frame
CS
Frame:
n+2
Operation
in Auto-2
mode
www.ti.com
SLAS605A – JUNE 2008 – REVISED JANUARY 2010
OPERATING IN AUTO-2 MODE
The details regarding entering and running in Auto-2 channel sequencing mode are illustrated in Figure 53.
Table 5 lists the Mode Control Register settings for Auto-2 mode in detail.
Figure 53. Entering and Running in Auto-2 Channel Sequencing Mode
Copyright 2008–2010, Texas Instruments Incorporated
33
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ADS7953SDBT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B 1MSPS 16Ch Sgl ended micro Pwr RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7953SDBTG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B 1MSPS 12Ch sr i/f SAR ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7953SDBTR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B 1MSPS 16Ch Sgl ended micro Pwr RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7953SDBTRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B 1MSPS 12Ch sr i/f SAR ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7953SRHBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B 1MSPS 16Ch Sgl End MicroPwr SAR ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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