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參數(shù)資料
| 型號(hào)： | LTC1380IGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface |
| 中文描述： | 8-CHANNEL, SGL ENDED MULTIPLEXER, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 275K |
| 代理商： | LTC1380IGN |
8
LTC1380/LTC1393
APPLICATIO
S I
N
FOR
ATIO
U
Theory of Operation
The LTC1380/LTC1393 are analog input multiplexers with
an SMBus digital interface. The LTC1380 is a single-ended
8-to-1 multiplexer; the LTC1393 is a differential 4-to-1
mulitplexer. The LTC1380 operates on either bipolar or
unipolar supplies, the LTC1393 operates on a single
supply. The minimum V
CC
supply for the LTC1380/LTC1393
is 2.7V. The maximum supply voltage (V
CC
to V
EE
for the
LTC1380, V
CC
for the LTC1393) should not exceed 14V.
The multiplexer switches operate within the entire power
supply range. The LTC1380 V
CC
and V
EE
supplies can be
offset such as 2.7V/–11V and 11V/–3V.
W
U
TIW
W
SDA FROM
HOST
SDA FROM
LTC1380/LTC1393
SCL
D
O
X
0
A0
A1
0
0
1
1
*
*0 FOR LTC1380, 1 FOR LTC1393
X
X
X
EN
C2
C1
C0
S
t
SU:STA
S
P
t
HD:DAT
t
SU:DAT
t
HD:STA
t
r
t
f
t
LOW
t
HIGH
t
BUF
t
SU:STO
t
OFF
t
ON
t
OPEN
ADDRESS BYTE
COMMAND BYTE
Serial Interface
The LTC1380/LTC1393 serial interface supports SMBus
send byte protocol as shown below with two interface
signals, SCL and SDA.
A send byte protocol is initiated by the SMBus host with a
start bit followed by a 7-bit address code and a write bit.
Each slave compares the address code with its address.
The send byte write bit is Low. The selected slaves then
reply with an acknowledge bit by pulling the SDA line Low.
Next, the host sends an 8-bit command byte. When the
selected slave receives the whole command byte, it ac-
knowledges and retains the command byte in the shift
register. The host can terminate the serial transfer with a
stop bit or communicate with another slave device with a
repeat start. When a repeat start occurs but the slave is not
selected, the command byte data is kept in the shift
register but the multiplexer control is not updated. The
multiplexer control latches the new command from the
shift register on the first stop bit after a successful com-
mand byte transfer. This allows the host to synchronize
several slave devices with a single stop bit. A1 and A0
select one of the four possible LTC1380/LTC1393 ad-
dresses as shown in Table 1. This allows up to four similar
devices to share the same SMBus, expanding the multi-
plexer to 32 single-ended channels with the LTC1380; 16
differential channels with the LTC1393. The first stop bit
after a successful send byte transfer will latch in the
multiplexer control bits (EN, C2, C1 and C0) and initiate a
break-before-make sequence.
S
1
0
0
1
0
A1 A0 W
A
X
X
X
X
EN C2 C1 C0
A
P
LTC1380 Send Byte Protocol
S
1
0
0
1
ADDRESS BYTE
S = SMBus START BIT
P = SMBus STOP BIT (THE FIRST STOP BIT AFTER A SUCCESSFUL COMMAND BYTE
UPDATES THE MULTIPLEXER CONTROL LATCH)
A = ACKNOWLEDGE BIT FROM LTC1380/LTC1393
W = WRITE COMMAND BIT
A1, A0 = ADDRESS BITS
EN, C2, C1, C0 = MULTIPLEXER CONTROL BITS
1
A1 A0 W
A
X
X
X
X
EN C2 C1 C0
A
P
LTC1393 Send Byte Protocol
COMMAND BYTE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1393CGN | Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface |
| LTC1393IGN | Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface |
| LTC1393IS | Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface |
| LTC1393 | Hex 2-Input OR Drivers 20-SOIC 0 to 70 |
| LTC1380CGN | Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1380IGN#PBF | 功能描述:IC MULTIPLEXER 8X1 16SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開(kāi)關(guān)，多路復(fù)用器，多路分解器 系列:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開(kāi)關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
| LTC1380IGN#TR | 功能描述:IC MULTIPLEXER 8X1 16SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 模擬開(kāi)關(guān)，多路復(fù)用器，多路分解器 系列:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開(kāi)關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
| LTC1380IGN#TRPBF | 功能描述:IC MULTIPLEXER 8X1 16SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開(kāi)關(guān)，多路復(fù)用器，多路分解器 系列:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開(kāi)關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
| LTC1380IS | 功能描述:IC MULTIPLEXER 8X1 16SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 模擬開(kāi)關(guān)，多路復(fù)用器，多路分解器 系列:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開(kāi)關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
| LTC1380IS#PBF | 功能描述:IC MULTIPLEXER 8X1 16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 模擬開(kāi)關(guān)，多路復(fù)用器，多路分解器 系列:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開(kāi)關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
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