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CAT522 데이터시트(PDF) 8 Page - Catalyst Semiconductor

부품명 CAT522
상세설명  8-Bit Dual Digital POT With Independent Reference Inputs
PDF  10 Pages
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제조업체  CATALYST [Catalyst Semiconductor]
홈페이지  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

CAT522 데이터시트(HTML) 8 Page - Catalyst Semiconductor

Back Button CAT522 Datasheet HTML 2Page - Catalyst Semiconductor CAT522 Datasheet HTML 3Page - Catalyst Semiconductor CAT522 Datasheet HTML 4Page - Catalyst Semiconductor CAT522 Datasheet HTML 5Page - Catalyst Semiconductor CAT522 Datasheet HTML 6Page - Catalyst Semiconductor CAT522 Datasheet HTML 7Page - Catalyst Semiconductor CAT522 Datasheet HTML 8Page - Catalyst Semiconductor CAT522 Datasheet HTML 9Page - Catalyst Semiconductor CAT522 Datasheet HTML 10Page - Catalyst Semiconductor  
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CAT522
8
8/00
Advanced Information
APPLICATION CIRCUITS (Cont.)
Coarse-Fine Offset Control by Averaging DAC Outputs
for Single Power Supply Systems
Coarse-Fine Offset Control by Averaging DAC Outputs
for Dual Power Supply Systems
+
–
FINE ADJUST
DAC
COARSE ADJUST
DAC
GND
V
L
REF
V
H
REF
VDD
RC
127RC
+V
+5V
+VREF
-V
-VREF
Ro
R = ———————————
C
1 µA
OFFSET
VOFFSET
REF
(+V
) - (V
)
R = ———————————
o
1 µA
OFFSET
REF
(-V
) + (V
)
+
+
+
–
FINE ADJUST
DAC
COARSE ADJUST
DAC
GND
V
L
REF
V
H
REF
VDD
RC
127RC
+V
+5V
VREF
R = —————
C
256 1 µA
VREF
*
Fine adjust gives ± 1 LSB change in V
when V
= ———
OFFSET
VREF
2
OFFSET
V OFFSET
OPT 505
LT 1029
I > 2 mA
V+
GND
VDD
V
= 5.000V
REF
V
H
REF
V
L
REF
CONTROL
& DATA
OPT 505
GND
VDD
V
H
REF
V
L
REF
CONTROL
& DATA
+
–
15K
10 µF
5.1V
10K
4.02 K
1.00K
10 µF
35V
LM 324
1N5231B
MPT3055EL
28 - 32V
OUTPUT
0 - 25V
@ 1A
Digitally Trimmed Voltage Reference
Digitally Controlled Voltage Reference
CAT522
CAT522



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