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LTC7545ABG#TRPBF
P1-P3
P4-P6
P7-P8
4
L
TC7545A
40k
10k
40k
20k
40k
20k
40k
20k
40k
40k
40k
DECODER
LOAD
V
DD
V
REF
R
FB
OUT1
AGND
DGND
3
2
1
20
7545A BD
INPUT DATA LATCHES
16
45
6
7
1
5
DB11
(MSB)
DB10
DB9
DB8
•
• • • •
•
•
DB0
(LSB)
17
18
19
WR
CS
BLOCK DIAGRA
M
W
TI
I
G DIAGRA
U
WW
t
CH
t
CS
t
DS
t
DH
t
WR
DATA VALID
DATA IN
DB0 to DB11
WR
CS
7545A TD
5
L
TC7545A
TYPICAL APPLICA
TIO
N
S
N
U
Unipolar Operation (2-Quadrant Multiplication)
ANALOG OUTPUT
V
OUT
MSB
LSB
1111
1111
1111
–
V
REF
(4095/4096)
1000
0000
0000
–
V
REF
(2048/4096) = –
V
REF
/2
0000
0000
0001
–
V
REF
(1/4096)
0000
0000
0000
0V
DIGITAL INPUT
BINARY NUMBER
IN DAC LATCH
Table 1. Unipolar Binary Code Table
V
DD
V
REF
LTC7545A
R
FB
OUT1
DGND
AGND
3
2
17
16
4–15
18
5V OR 15V
V
REF
–10V TO 10V
µ
P
WR
CS
DB11 to DB0
19
20
1
33pF
0.1
µ
F
V
OUT
0V TO – V
REF
7545A TA03
–
+
LT1097
6
L
TC7545A
TYPICAL APPLICA
TIO
N
S
N
U
Bipolar Operation (4-Quadrant Multiplication)
V
DD
V
REF
LTC7545A
R
FB
OUT1
DGND
AGND
3
2
17
16
4–15
18
5V OR 15V
V
REF
–10V TO 10V
µ
P
WR
CS
DB11–DB0
19
20
1
33pF
R1
10K
0.1
µ
F
V
OUT
7545A TA04
–
+
1/2LT1112
–
+
1/2LT1112
R2
20K
R3
20K
ANALOG OUTPUT
V
OUT
Table 2. Bipolar Offset Binary Code Table
MSB
LSB
1111
1111
1111
V
REF
(2047/2048)
1000
0000
0001
V
REF
(1/2048)
1000
0000
0000
0V
0111
1111
1111
–V
REF
(1/2048)
0000
0000
0000
–V
REF
(2048/2048) = –V
REF
DIGITAL INPUT
BINARY NUMBER
IN DAC LATCH
P1-P3
P4-P6
P7-P8
LTC7545ABG#TRPBF
Mfr. #:
Buy LTC7545ABG#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Digital to Analog Converters - DAC Imp Ind St&ard Parallel 12-B Mult DAC
Lifecycle:
New from this manufacturer.
Delivery:
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EMS
Payment:
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