PIN FUNCTIO
參數資料
型號: LTC1390CN
廠商: Linear Technology
文件頁數: 5/8頁
文件大?。?/td> 0K
描述: IC MULTIPLEXER 8X1 16DIP
標準包裝: 25
功能: 多路復用器
電路: 1 x 8:1
導通狀態(tài)電阻: 255 歐姆
電壓電源: 單/雙電源
電壓 - 電源,單路/雙路(±): 3V,±5V
電流 - 電源: 200nA
工作溫度: 0°C ~ 70°C
安裝類型: 通孔
封裝/外殼: 16-DIP(0.300",7.62mm)
供應商設備封裝: 16-PDIP
包裝: 管件
5
LTC1390
sn1390 1390fs
PIN FUNCTIONS
UU
U
CS (Pin 11): Chip Select Input (TTL/CMOS Compatible). A
logic high on this input enables LTC1390 to read in the
channel selection bits and allow data transfer from Data 1
to Data 2. A logic low enables the desired channel for
analog signal transmission and allows data transfer from
Data 2 to Data 1.
Data 1 (Pin 12): Bidirectional Digital Input/Output (TTL/
CMOS Compatible). Input for the channel selection bits.
Figure 2: Multiplexer Operation
ANY
ANALOG
INPUTS
D
DATA 1
EN = HIGH
B2
B1
B0
EN = LOW
B2
B1
B0
LTC1390 F02
CLK
CS
tON
tOFF
APPLICATIO S I FOR ATIO
UU
W
U
When CS is high, the input data on the Data 1 pin is latched
into the 4-bit shift register on each rising clock edge. The
input data consists of an “EN” bit and a string of three bits
for channel selection. If “EN” bit is logic high as illustrated
in the first input data sequence, it enables the selected
channel. To ensure correct operation, the CS must be
pulled low before the next rising clock edge.
Once the CS is pulled low, all channels are simultaneously
switched off to ensure a break-before-make interval. After
a delay of tON, the selected channel is switched on allowing
signal transmission. The selected channel remains on
until the next falling edge of CS, and after a delay of tOFF,
it terminates the analog signal transmission and subse-
quently allows the selection of the next channel. If “EN” bit
is logic low, as illustrated in the second data sequence, it
disables all channels and there will be no analog signal
Multiplexer Operation
Figure 1 shows the block diagram of the components
within the LTC1390 required for MUX operation. The
LTC1390 uses Data 1 to select its 8 channels and a chip
select input CS to switch on the selected channel as shown
in Figure 2.
4-BIT SHIFT
REGISTER
CLK
DATA 1
CS
CONTROL
LOGIC
MUX
BLOCK
ANALOG
INPUT
ANALOG
OUTPUT
LTC1390 F01
Figure 1: Simplified Block Diagram of the MUX Operation
Data 2 (Pin 13): Bidirectional Digital Input/Output (TTL/
CMOS Compatible).
V (Pin 14): Negative Supply. For
±5V dual supply appli-
cations, |V| should not exceed |V+| by more than 20% for
proper channel selection.
D (Pin 15): Analog Multiplexer Output/Analog
Demultiplexer Input.
V+ (Pin 16): Positive Supply.
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相關代理商/技術參數
參數描述
LTC1390CN#PBF 功能描述:IC MULTIPLEXER 8X1 16DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關,多路復用器,多路分解器 系列:- 標準包裝:1,000 系列:- 功能:多路復用器 電路:1 x 4:1 導通狀態(tài)電阻:- 電壓電源:雙電源 電壓 - 電源,單路/雙路(±):±5V 電流 - 電源:7mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)
LTC1390CS 制造商:Linear Technology 功能描述:Analog Multiplexer Single 8:1 16-Pin SOIC N
LTC1390CS#PBF 功能描述:IC MULTIPLEXER 8X1 16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關,多路復用器,多路分解器 系列:- 特色產品:MicroPak? 標準包裝:1 系列:- 功能:開關 電路:2 x SPST - NC 導通狀態(tài)電阻:500 毫歐 電壓電源:單電源 電壓 - 電源,單路/雙路(±):1.4 V ~ 4.3 V 電流 - 電源:150nA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-XFDFN 供應商設備封裝:8-XSON,SOT833-1 (1.95x1) 包裝:Digi-Reel® 其它名稱:568-5557-6
LTC1390CS#TR 功能描述:IC MULTIPLEXER 8X1 16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 模擬開關,多路復用器,多路分解器 系列:- 標準包裝:1,000 系列:- 功能:多路復用器 電路:1 x 4:1 導通狀態(tài)電阻:- 電壓電源:雙電源 電壓 - 電源,單路/雙路(±):±5V 電流 - 電源:7mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)
LTC1390CS#TRPBF 功能描述:IC MULTIPLEXER 8X1 16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開關,多路復用器,多路分解器 系列:- 標準包裝:1,000 系列:- 功能:多路復用器 電路:1 x 4:1 導通狀態(tài)電阻:- 電壓電源:雙電源 電壓 - 電源,單路/雙路(±):±5V 電流 - 電源:7mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)