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| 型號(hào)： | DDC118IRTCT |
| 英文描述： | Octal Current Input 20-Bit Analog-To-Digital Converter |
| 中文描述： | 八路電流輸入20位模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 22/30頁(yè) |
| 文件大?。?/td> | 384K |
| 代理商： | DDC118IRTCT |
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SBAS325A JUNE 2004 REVISED JUNE 2005
SPECIAL CONSIDERATIONS
Cascading Multiple Converters
www.ti.com
22
Multiple DDC118 units can be connected in serial
configuration, as illustrated in Figure 21.
DOUT can be used with DIN to daisy-chain several
DDC118 devices together to minimize wiring. In this mode
of operation, the serial data output is shifted through
multiple DDC118s, as illustrated in Figure 21.
See Figure 22 for the timing diagram when the DIN input
is used to daisy-chain several devices. Table 11 gives the
timing specification for data retrieval using DIN.
I
A
Sensor
DIN
DIN
DOUT
DOUT
DDC118
DIN
DIN
DOUT
DOUT
DIN
DIN
DOUT
DOUT
D
D
D
Data Retrieval
Outputs
I
B
I
C
I
D
I
E
I
F
I
G
I
H
I
I
I
J
I
K
I
L
I
M
I
N
I
O
I
P
I
Q
I
R
I
S
I
T
I
U
I
V
I
W
I
X
D
D
D
D
D
D
DDC118
DDC118
Data Clock
Figure 21. Daisy-Chained DDC118s
CLK
DVALID
DCLK
DIN
t
18
t
19
t
21
t
20
t
20
t
22
t
23
DOUT
Input A
MSB
Input A
LSB
Input B
MSB
Input L
LSB
Input M
MSB
Input W
LSB
Input X
MSB
Input X
LSB
Input A
MSB
Figure 22. Timing Diagram When Using the DIN Function of the DDC118
Table 11. Timing for the DDC118 Data Retrieval Using DIN
SYMBOL
DESCRIPTION
MIN
TYP
MAX
UNITS
t22
Set-Up Time From DIN to Falling Edge of DCLK
5
ns
t23
Hold Time For DIN After Falling Edge of DCLK
4
ns
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DDC118IRTCT | 制造商:Texas Instruments 功能描述:IC ADC 20BIT OCTAL 48-VQFN |
| DDC118IRTCT | 制造商:Texas Instruments 功能描述:A/D CONVERTER (A-D) IC ((NW)) |
| DDC118IRTCTG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Octal Current-Input 20-Bit 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 |
| DDC11XEVM-PDK | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 DDC11xEVM-PDK Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| DDC122LH | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:NPN PRE-BIASED SMALL SIGNAL SOT-563 DUAL SURFACE MOUNT TRANSISTOR |
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