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參數(shù)資料
| 型號： | LTC1289BCJ |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 3 Volt Single Chip 12-Bit Data Acquisition System |
| 中文描述： | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP20 |
| 封裝： | 0.300 INCH, CERDIP-20 |
| 文件頁數(shù)： | 14/28頁 |
| 文件大小： | 487K |
| 代理商： | LTC1289BCJ |
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14
LTC1289
U
S
A
O
PPLICATI
IU
U
Deglitcher
A deglitching circuit has been added to the Chip Select
input of the LTC1289 to minimize the effects of errors
caused by noise on that input. This circuit ignores changes
in state on the CS input that are shorter in duration than
one ACLK cycle. After a change of state on the CS input, the
LTC1289 waits for two falling edge of the ACLK before
recognizing a valid chip select. One indication of CS
recognition is the D
OUT
line becoming active (leaving the
Hi-Z state). Note that the deglitching applies to both the
rising and falling CS edges.
CS Low During Conversion
In the normal mode of operation, CS is brought high
during the conversion time. The serial port ignores any
SCLK activity while CS is high. The LTC1289 will also
operate with CS low during the conversion. In this mode,
SCLK must remain low during the conversion as shown in
the following figure. After the conversion is complete, the
D
OUT
line will become active with the first output bit. Then
the data transfer can begin as normal.
Figure 4. CS Low During Conversion
Figure 3. CS High During Conversion
Low CS Recognized Internally
High CS Recognized Internally
CS
ACLK
D
OUT
Hi-Z
VALID OUTPUT
LTC1289 AI08
CS
ACLK
D
OUT
Hi-Z
VALID OUTPUT
LTC1289 AI08a
DON'T CARE
B11 B10 B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
B11 B10 B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
SHIFT RESULT OUT
AND NEW ADDRESS IN
SCLK
CS
D
OUT
D
IN
t
SAMPLE ANALOG
INPUT
SHIFT
MUX ADDRESS
IN
LTC1289 AIF03
48 TO 52
ACLK CYC
DON'T CARE
B11 B10 B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
B11 B10 B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
SHIFT RESULT OUT
AND NEW ADDRESS IN
SCLK
CS
D
OUT
D
IN
t
SAMPLE ANALOG
INPUT
SHIFT
MUX ADDRESS
IN
LTC1289 AIF04
48 TO 52
ACLK CYC
SCLK MUST
REMAIN LOW
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1289BIJ | 3 Volt Single Chip 12-Bit Data Acquisition System |
| LTC1289BIN | 3 Volt Single Chip 12-Bit Data Acquisition System |
| LTC1289CIJ | 3 Volt Single Chip 12-Bit Data Acquisition System |
| LTC1289CIN | 3 Volt Single Chip 12-Bit Data Acquisition System |
| LTC1290DISW | Single Chip 12-Bit Data Acquisition System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1289BCN | 功能描述:IC DATA ACQ SYS 12BIT 3V 20-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1289BCN#PBF | 功能描述:IC DATA ACQ SYS 12BIT 3V 20-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1289BCSW | 功能描述:IC DATA ACQ SYS 12BIT 3V 20-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1289BCSW#PBF | 功能描述:IC DATA ACQ SYS 12BIT 3V 20-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| LTC1289BCSW#TR | 功能描述:IC DATA ACQ SYS 12BIT 3V 20SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
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