參數(shù)資料
型號(hào)： DDC112U/1K
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 2-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28
封裝： GREEN, PLASTIC, SOIC-28
文件頁(yè)數(shù)： 8/34頁(yè)
文件大?。?/td> 776K
代理商： DDC112U/1K
DDC112
16
SBAS085B
www.ti.com
FIGURE 13. Non-Continuous Mode Timing.
Ncont Mode
Figure 13 illustrates operation in the ncont mode. The
integrations come in pairs (that is, sides A/B or sides B/A)
followed by a time during which no integrations occur.
During that time, the previous integrations are being mea-
sured, reset and auto-zeroed. Before the DDC112 can
advance to states 3 or 6, both sides A and B must be
finished with the m/r/az cycle which takes time t10. When the
m/r/az cycles are completed, time t11 is needed to prepare
the next side for integration. This time is required for the
ncont mode because the m/r/az cycle of the ncont mode is
slightly different from that of the cont mode. After the first
integration ends, DVALID goes LOW in time t8. This is the
same time as in the cont mode. The second data will be
ready in time t9 after the first data is ready. One result of the
naming convention used in this application bulletin is that
when the DDC112 is operating in the
ncont mode, it passes
through both
ncont mode states and cont mode states. For
example, in Figure 13, the state pattern is 3, 4, 1, 2, 3, 4, 1,
2, 3, 4...where 3 and 4 are cont mode states.
Ncont mode
by definition means that for some portion of the time, neither
side A nor B is integrating. States that perform an integration
are labeled
cont mode states while those that do not are
called
ncont mode states. Since integrations are performed
in the ncont mode, just not continuously, some cont mode
states must be used in an ncont mode state pattern.
SYMBOL
DESCRIPTION
VALUE (CLK = 10MHz)
VALUE (CLK = 15MHz)
t8
1st ncont mode data ready.
421.2
±0.3s
280.8
±0.2s
t9
2nd ncont mode data ready.
454.8
s
303.2
s
t10
Ncont mode m/r/az cycle.
910.8
s
607.2
s
t11
Prepare side for integration.
≥ 24.0s
23
1
34
4
1
2
Int B
Int A
Int B
Int A
m/r/az B
m/r/az A
m/r/az B
CONV
State
mbsy
m/r/az
Status
Integration
Status
DVALID
t
10
t
9
t
11
t
8
Side A
Data
Side B
Data
Side A
Data
Side B
Data
相關(guān)PDF資料
PDF描述
DDC123JK-7-F 100 mA, 50 V, 2 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR
DDL24W700G30LF 24 CONTACT(S), FEMALE, D SUBMINIATURE CONNECTOR, SOLDER, SOCKET
DDV36W443G40LF 36 CONTACT(S), FEMALE, D SUBMINIATURE CONNECTOR, SOLDER, SOCKET
DDV47W143G30LF 47 CONTACT(S), FEMALE, D SUBMINIATURE CONNECTOR, SOLDER, SOCKET
DDV47W143H40LF 47 CONTACT(S), FEMALE, D SUBMINIATURE CONNECTOR, SOLDER, SOCKET
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DDC112UG4 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 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 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*