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Номер в каталоге
Компоненты Описание
LTC1411IG Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LTC1411IG
Single Supply 14-Bit 2.5Msps ADC
Linear Technology
LTC1411IG Datasheet PDF : 16 Pages
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LTC1411
APPLICATIO S I FOR ATIO
CONVST
(SAMPLE N)
t
2
t
CONV
t
3
BUSY
DATA
DATA (N – 1)
DB13 TO DB0
t
ACQ
t
4
DATA N
DB13 TO DB0
Figure 11a. CONVST Starts a Conversion with a Short Active Low Pulse
DATA (N + 1)
DB13 TO DB0
1411 F11a
CONVST
BUSY
DATA
t
5
(SAMPLE N)
t
3
t
CONV
t
5
t
3
t
ACQ
DATA (N – 1)
DB13 TO DB0
t
4
DATA N
DB13 TO DB0
Figure 11b. CONVST Starts a Conversion with a Short Active High Pulse
DATA (N + 1)
DB13 TO DB0
1411 F11b
011...111
011...110
000...001
000...000
111...111
111...110
BIPOLAR
ZERO
100...001
100...000
1LSB
=
FS
16384
=
3.6V
16384
= 219.7
µ
V
– FS/2
–1 2.5V 1
LSB LSB
INPUT VOLTAGE (V)
FS/2 – 1LSB
1411 F12
Figure 12. LTC1411 Bipolar Transfer Characteristics
(2’s Complement)
14
R7
51
Ω
R1
51
Ω
5V R3
51k
OFFSET R2
ADJUST 10k
A
IN+
A
IN–
LTC1411
5V
R4
100k
FULL-SCALE R5
ADJUST 750
Ω
R6
100k
REFIN
1411 F13
Figure 13. Offset and Full-Scale Adjustment
1411f
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