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參數(shù)資料
| 型號： | DDC112UK |
| 英文描述： | Dual Current Input 20-Bit ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 雙路電流輸入20位模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 17/24頁 |
| 文件大?。?/td> | 210K |
| 代理商： | DDC112UK |
DDC112
17
CONV
4
2
1
4
Non-Continuous
Continuous
3
3
State
mbsy
m/r/az
Status
Integration
Status
m/r/az A
m/r/az B
m/r/az A
Int B
Int A
Integrate A
Integrate B
FIGURE 18. Changing from Continuous Mode to Non-Continuous Mode.
FIGURE 19. Changing from Non-Continuous Mode to Continuous Mode.
CONV
8
7
4
5
Continuous
Non-Continuous
5
6
5
State
Integration
Status
m/r/az
Status
mbsy
m/r/az B
m/r/az A
m/r/az B
m/r/az A
m/r/az B
Integrate A
Integrate B
Int A
Int A
Int B
Changing Between Modes
Changing from the cont to ncont mode occurs whenever
T
INT
< t
6
. Figure 18 shows an example of this transition.
In this figure, the cont mode is entered when the integration
on side A is completed before the m/r/az cycle on side B is
complete. The DDC112 completes the measurement on sides
B and A during states 8 and 7 with the input signal shorted
to ground. Ncont integration begins with state 6.
Changing from the ncont to cont mode occurs when T
INT
is
increased so that T
INT
is always
≥
t
6
(see Figure 14). With a
longer T
INT
, the m/r/az cycle has enough time to finish
before the next integration begins and continuous integra-
tion of the input signal is possible. For the special case of the
very first integration when changing to the cont mode, T
INT
can be < t
6
. This is allowed because there is no simultaneous
m/r/az cycle on the side B during state 3—
there is no need
to wait for it to finish before ending the integration on side A.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DDC112UK | 制造商:Texas Instruments 功能描述:DUAL CURRENT INPUT 20 BIT ANALOG/DIGITAL |
| DDC112UK | 制造商:Texas Instruments 功能描述:20BIT ADC DUAL SMD SOIC28 112 |
| DDC112UK/1K | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 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 |
| DDC112UK/1KG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 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 |
| DDC112UKG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual Current Input 20B 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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