LTC7541A Linear Technology, LTC7541A Datasheet - Page 4

• Manufacturer Part Number: LTC7541A
• Description: Improved Industry Standard CMOS 12-Bit Multiplying DAC
• Manufacturer: Linear Technology

RELATED PARTS
LTC7541A
TYPICAL APPLICATIONS
PART NUMBER
LTC1257
LTC1451/LTC1452/LTC1453
LTC7543/LTC8143
LTC8043
4
– 10 TO 10V
V
REF
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
[phone]
0.1 F
DIGITAL INPUTS
– 10 TO 10V
15V
V
4 TO 15
DD
16
FAX
V
: [phone]
LTC7541A
REF
V
REF
17
DESCRIPTION
Complete Serial I/O V
Complete Serial I/O V
Serial I/O Muliplying 12-Bit DACs
Serial Mulitplying 12-Bit DAC
0.1 F
GND
R
FB
OUT 1
OUT 2
18
3
DIGITAL INPUTS
15V
V
4 TO 15
DD
U
TELEX
16
1
2
Table 2. Bipolar Offset Binary Code Table
LTC7541A
MSB
: 499-3977
V
1111 1111 1111
1000 0000 0001
1000 0000 0000
0111 1111 1111
0000 0000 0000
Unipolar Operation (2-Quadrant Multiplication)
REF
Bipolar Operation (4-Quadrant Multiplication)
N
17
DIGITAL INPUT
33pF
OUT
OUT
GND
R
FB
OUT 1
OUT 2
18
12-Bit DAC
12-Bit DACs
3
–
+
LT1097
1
2
LSB
33pF
V
V
0V
–V
–V
REF
REF
COMMENTS
5V to 15V Single Supply in 8-Pin SO and PDIP
3V/5V Single Supply in 8-Pin SO and PDIP
Clear Pin, Serial Data Output (LTC8143)
8-Pin SO and PDIP
–
+
1/2 LT1112
REF
REF
ANALOG OUTPUT
(2047/2048)
(1/2048)
V
OUT
(1/2048)
V
Table 1. Unipolar Binary Code Table
OUT
MSB
1111 1111 1111
1000 0000 0000
0000 0000 0001
0000 0000 0000
DIGITAL INPUT
20k
10k
R2
R1
–
+
LSB
1/2 LT1112
20k
R3
7541 TA04
–V
–V
–V
0V
LINEAR TECHNOLOGY CORPORATION 1995
REF
REF
REF
ANALOG OUTPUT
(4095/4096)
(2048/4096) = –V
(1/4096)
V
LT/GP 1195 6K • PRINTED IN USA
OUT
V
OUT
7541 TA03
REF
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