- 您現在的位置：買賣IC網 > PDF目錄383952 > TLC1518PW (Texas Instruments, Inc.) 5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN PDF資料下載
參數資料
| 型號： | TLC1518PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN |
| 中文描述： | 5五，10位400 ksps的，4 / 8通道，低功耗，串行模數位自動開機和下變頻器 |
| 文件頁數： | 35/40頁 |
| 文件大?。?/td> | 609K |
| 代理商： | TLC1518PW |
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頁當前第35頁第36頁第37頁第38頁第39頁第40頁
TLC1514, TLC1518
5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN
SLAS252 – DECEMBER 1999
35
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
power down calculations
i(AVERAGE) = (f
S
/f
SMAX
)
×
i(ON) + (1–f
S
/f
SMAX
)
×
i(OFF)
CASE 1: If V
DD
= 5 V, auto power down, and an external reference is used:
fS
20 kHz
fSMAX
i(ON)
400 kHz
4 mA operating current and i(OFF)
5
A auto power-down current
so
i(AVERAGE)
0.05
4000
A
0.95
5
A
0.21 mA
CASE 2: Now if software power down is used, another cycle is needed to shut it down.
fS
40 kHz
fSMAX
i(ON)
400 kHz
4 mA operating current and i(OFF)
5
A power-down current
so
i(AVERAGE)
0.1
4000
A
0.9
5
A
0.41 mA
In reality this will be less since the second conversion never happened. It is only the additional cycle to shut down
the ADC.
CASE 3: Now if the hardware power down is used.
fS
20 kHz
fSMAX
i(ON)
400 kHz
4 mA operating current and i(OFF)
5
A power-down current
so
i(AVERAGE)
0.05
4000
A
0.95
5
A
0.21 mA
difference between modes of conversion
The major difference between sweep mode (mode 10) and repeat sweep mode (mode 11) is that the sweep
sequence ends after the FIFO is filled up to the programmed threshold. The repeat sweep can either dump the
FIFO (by ignoring the FIFO content but simply reconfiguring the device) or read the FIFO and then repeat the
conversions on the the same sequence of the channel as before.
FIFO reads are expected after the FIFO is filled up to the threshold in each case. Mode 10 – the device allows
only FIFO read or CFR read or CFR write to be executed. Any conversion command is ignored. In the case of
mode 11, in addition to the above commands, conversion commands are also executed , i.e. the FIFO is cleared
and the sweep sequence is restarted.
Both single shot and repeat modes require selection of a channel after the device is configured for these modes.
Single shot mode does not use the FIFO, but repeat mode does. When the device is operating in repeat mode,
the FIFO can be dumped (by ignoring the FIFO content and simply reconfiguring the device) or the FIFO can
be read and then the conversions repeated on the same channel as before. However, the channel has to be
selected first before any conversion can be carried out. The devices can be programmed with the following
sequences for operating in the different modes that use a FIFO.
相關PDF資料 |
PDF描述 |
|---|---|
| TLC1514PW | 5-V, 10-BIT, 400 KSPS, 4/8 CHANNEL, LOW POWER, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTO POWER DOWN |
| TLC1518D | CAP METAL POLYPRO 1.6UF 400V 5% |
| TLC2252MFK | Advanced LinCMOSE RAIL-TO-RAIL VERY LOW-POWER OPERATIONAL AMPLIFIERS |
| TLC2254MFK | Advanced LinCMOSE RAIL-TO-RAIL VERY LOW-POWER OPERATIONAL AMPLIFIERS |
| TLC2252AMFK | TRANS ARRAY NPN/NPN W/RES MINI-6 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TLC154 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM/ROM-Based 8-Bit Microcontroller Series |
| TLC1541 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTER WITH SERIAL CONTROL AND 11 INPUTS |
| TLC1541CDW | 功能描述:模數轉換器 - ADC 10bit A/D w/Ser In RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLC1541CDWG4 | 功能描述:模數轉換器 - ADC 10-Bit 32 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLC1541CDWR | 功能描述:模數轉換器 - ADC 10-Bit 32 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
發(fā)布緊急采購，3分鐘左右您將得到回復。