參數(shù)資料
型號: LTC1292
廠商: Linear Technology Corporation
英文描述: Single Chip 12-Bit Data Acquisition Systems(5V,單片,12位數(shù)據(jù)采集系統(tǒng)(內(nèi)置采樣和保持))
中文描述: 單芯片12位數(shù)據(jù)采集系統(tǒng)(5V的,單片,12位數(shù)據(jù)采集系統(tǒng)(內(nèi)置采樣和保持))
文件頁數(shù): 21/24頁
文件大?。?/td> 398K
代理商: LTC1292
21
LTC1292/LTC1297
If V
CC
and V
REF
are not tied together, then V
CC
should
be turned on first, then V
REF
. If this sequence cannot be
met, connecting a diode from V
REF
to V
CC
is recom-
mended (see Figure 25).
Because a unique input protection structure is used on
the digital input pins, the signal levels on these pins can
exceed the device V
CC
without damaging the device.
U
S
A
O
PPLICATI
U
U
Figure 26. “Quick Look” Circuit for the LTC1292
5V
LTC1292/7 F23
1N4148 DIODES
V
CC
CLK
D
OUT
V
REF
CS
+IN
–IN
GND
LTC1292
LTC1297
5V
LTC1292/7 F24
1N4148 DIODES
1k
V
CC
CLK
D
OUT
V
REF
CS
+IN
–IN
GND
LTC1292
LTC1297
Figure 24b. Overvoltage Protection with
Diode Clamps and Current Limiting Resistor
Figure 23. Overvoltage Protection with Clamp Diodes
5V
LTC1292/7 F25
1N4148
5V
V
CC
CLK
D
OUT
V
REF
CS
+IN
–IN
GND
LTC1292
LTC1297
Figure 25. Separate V
CC
and V
REF
Supplies
5V
LTC1292/7 F24a
250
1k
V
CC
CLK
D
OUT
V
REF
CS
+IN
–IN
GND
LTC1292
LTC1297
Figure 24a. Overvoltage Protection with
Current Limiting Resistors
TO OSCILLOSCOPE
CD4520
LTC1292/7 F26
Q1
RESET
V
DD
EN
CLK
Q2
Q3
Q4
0.1μF
V
IN
f/32
+5V
CLOCK IN
1MHz
22μF
CLK
EN
Q1
Q2
Q3
Q4
V
SS
RESET
V
CC
CLK
D
OUT
V
REF
CS
+IN
–IN
GND
LTC1292
相關(guān)PDF資料
PDF描述
LTC1297 Single Chip 12-Bit Data Acquisition Systems(5V,單片,12位數(shù)據(jù)采集系統(tǒng)(內(nèi)置采樣和保持))
LTC1293 Single Chip 12-Bit Data Acquisition System(單片,12位數(shù)據(jù)采集系統(tǒng))
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