參數(shù)資料
型號(hào)： LTC1290DM
廠商： Linear Technology Corporation
英文描述： Single Chip 12-Bit Data Acquisition System
中文描述： 單芯片12位數(shù)據(jù)采集系統(tǒng)
文件頁(yè)數(shù)： 14/28頁(yè)
文件大小： 381K
代理商： LTC1290DM
14
LTC 1290
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PPLICATI
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I FOR ATIO
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Microprocessor Interfaces
The LTC1290 can interface directly (without external hard-
ware) to most popular microprocessor (MPU) synchro-
nous serial formats (see Table 2). If an MPU without a
serial interface is used, then four of the MPU’s parallel port
lines can be programmed to form the serial link to the
LTC1290. Included here are two serial interface examples
and one example showing a parallel port programmed to
form the serial interface
Serial Port Microprocessors
Most synchronous serial formats contain a shift clock
(SCLK) and two data lines, one for transmitting and one for
receiving. In most cases data bits are transmitted on the
falling edge of the clock (SCLK) and captured on the rising
edge. However, serial port formats vary among MPU
manufactures as to the smallest number of bits that can be
sent in one group (e.g., 4-bit, 8-bit or 16-bit transfers).
They also vary as to the order in which the bits are
transmitted (LSB or MSB first). The following examples
show how the LTC1290 accommodates these differences.
Figure 4. CS Low During Conversion (CS Must go High to Low Once to Insure Proper Operation in this Mode)
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
LTC1290 F04
48 TO 52
ACLK CYC
SCLK MUST
REMAIN LOW
DON’T CARE
Figure 3. CS High During Conversion
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
LTC1290 F03
48 TO 52
ACLK CYC
DON’T CARE
相關(guān)PDF資料
PDF描述
LTC1290DMJ Single Chip 12-Bit Data Acquisition System
LTC1290 Single Chip 12-Bit Data Acquisition System
LTC1290BC Single Chip 12-Bit Data Acquisition System
LTC1290BCN Single Chip 12-Bit Data Acquisition System
LTC1290BCSW Single Chip 12-Bit Data Acquisition System
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1290DMJ 制造商:Linear Technology 功能描述:ADC Single SAR 50ksps 12-bit Serial 20-Pin CDIP
LTC1291BCN8 功能描述:IC DATA ACQ SYSTEM 12BIT 8-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
LTC1291BCN8#PBF 功能描述:IC DATA ACQ SYSTEM 12BIT 8-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
LTC1291CCN8 功能描述:IC DATA ACQ SYSTEM 12BIT 8-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
LTC1291CCN8#PBF 功能描述:IC DATA ACQ SYSTEM 12BIT 8-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
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