LTC1448 Linear Technology, LTC1448 Datasheet - Page 5

• Manufacturer Part Number: LTC1448
• Description: Dual 12-Bit Rail-to-Rail Micropower DAC
• Manufacturer: Linear Technology

TI I G DIAGRA S
BLOCK
CS/LD
CS/LD
W
CLK
D
CLK
D
IN
IN
OPERATING SEQUENCE
U
PREVIOUS WORD
(ENABLE CLOCK)
D11
MSB
1
B0-B
I D AGRA
D10
CS/LD
2
CLK
REF
t
D
8
IN
D9
3
1
2
3
4
D8
4
W
D7
W
5
DAC A INPUT
D6
6
POWER-ON
REGISTER
24-BIT
RESET
SHIFT
B11-A
D5
MSB
7
D4
8
D3
t
4
9
D2
REGISTER
REGISTER
10
DAC B
DAC A
LD
LD
D1
11
LSB
D0
12
D11
MSB
13
B0-A
LSB
D10
t
3
12-BIT
12-BIT
DAC B
DAC A
14
D9
15
D8
t
1
16
B11-B
D7
MSB
17
t
2
DAC B INPUT
D6
18
+
–
+
–
D5
19
D4
20
D3
1448 BD
21
(UPDATE DAC OUTPUT)
B0-B
LSB
D2
22
t
8
7
6
5
6
D1
V
V
GND
V
OUT B
CC
OUT A
23
LTC1448
t
5
D0
LSB
24
1448 TD01
t
7
1448 TD02
5