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參數(shù)資料
型號(hào)： TLC2574IPWG4
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： ADC
英文描述： 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： GREEN, PLASTIC, TSSOP-20
文件頁(yè)數(shù)： 25/49頁(yè)
文件大小： 1137K
代理商： TLC2574IPWG4
TLC3574, TLC3578, TLC2574, TLC2578
5V ANALOG, 3/5V DIGITAL, 14/12BIT, 200KSPS, 4/8CHANNEL
SERIAL ANALOGTODIGITAL CONVERTERS WITH ±10V INPUTS
SLAS262C OCTOBER 2000 REVISED MAY 2003
31
WWW.TI.COM
conversion operation (continued)
CS
FS
SDI
INT
SDO
***
Command = Configure Write for Mode 11, FIFO
Threshold = 1/2 Full, Sweep Sequence: 0022
**
COMMAND = Select Any Channel
*
COMMAND = Read FIFO
*
Configure
Conversion
From CH0
Conversion
From CH2
Conversion
From CH2
Conversion
From CH0
1st SWEEP
1st FIFO Read
REPEAT
2nd FIFO Read
CH0
CH2
CH0
READ FIFO after 1st SWEEP Completed
CSTART
*** **
**
*
***
*
Possible Signal
Don’t Care
Figure 19. Mode 11, CSTART Triggers Samplings/Conversions, FS Initiates SELECT Operation
conversion clock and conversion speed
The conversion clock source can be the internal OSC, or the external clock, SCLK. The conversion clock is equal
to the internal OSC if the internal clock is used, or equal to SCLK/4 when the external clock is selected. It takes
18 conversion clocks plus 15 ns to finish the conversion for TLC3574 and TLC3578, and 13 conversion clocks
plus 15 ns for the TLC2574 and TLC2578. If the external clock is selected, the conversion time (not including
sampling time) is 18X(4/fSCLK)+15 ns for TLC3574 and TLC3578 and 13X(4/fSCLK)+15 ns for TLC2574 and
TLC2578. Table 4 shows the maximum conversion rate (including sampling time) when the analog input source
resistor is 25
.
Table 4. Maximum Conversion Rate
DEVICE
SAMPLING MODE
CONVERSION CLK
MAX SCLK
(MHz)
CONVERSION
TIME (
s)
RATE
(KSPS)
SHORT (16 SCLK)
External
SCLK/4
10
8.815
113.4
TLC3574/78
LONG (48 SCLK)
External
SCLK/4
25
4.815
207.7
TLC3574/78
(Rs = 25
)
SHORT (16 SCLK)
Internal
6.5 MHz
10
4.384
228.0
(Rs = 25
)
LONG (48 SCLK)
Internal
6.5 MHz
25
4.705
212.5
SHORT (16 SCLK)
Exernal
SCLK/4
10
6.815
146.7
TLC2574/78
LONG (48 SCLK)
External
SCLK/4
25
4.015
249.1
TLC2574/78
(Rs = 25
)
SHORT (16 SCLK)
Internal
6.5 MHz
10
3.615
276.6
(Rs = 25
)
LONG (48 SCLK)
Internal
6.5 MHz
25
3.935
254.1
相關(guān)PDF資料
PDF描述
TLC3578IDWR 8-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC2574IDW 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLC3574IDW 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLC2578IPW 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
TLC3574IDWRG4 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC2574IPWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Serial Out Low Power 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
TLC2574IPWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Serial Out Low Power 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
TLC2578EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 TLC2578 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類(lèi)型:ADC 工具用于評(píng)估:ADS130E08 接口類(lèi)型:SPI 工作電源電壓:- 6 V to + 6 V
TLC2578IDW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Serial Out Low Power 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
TLC2578IDWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Serial Out Low Power 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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