LTC1590 查看數據表（PDF） - Linear Technology
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LTC1590 Datasheet PDF : 12 Pages
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LTC1590
TYPICAL APPLICATIONS
Very Low Power Single Supply Dual VOUT DAC
50k
500k
–
1/4
+LT1179
VOUT A
V+
3.3V
0.2V
120k
LT1004-1.2
0.1µF
–
210k
1/4
+LT1179
50k
V+
3.3V
16
1
2
VCC
3 OUT1 B
4 OUT2 B
RFB B
VREF B
DAC B
50k
9
500k
–
1/4
+LT1179
VOUT B
0V TO 2.2V
8
6 OUT1 A
5 OUT2 A
LTC1590
RFB A
VREF A
DAC A
AGND
7
DGND
10
ISUPPLY TOTAL = 100µA (TYP)
(WORSE-CASE CODE)
1590 TA06
DATA IN
SERIAL CLOCK
CHIP SELECT/DAC LOAD
DATA OUT
CLEAR
Dual Programmable Gain Amplifier
VIN B
±10V
5V
0.1µF 16
13 DIN
14 CLK
11 CS/LD
12 DOUT
15 CLR
24-BIT
SHIFT
REG
AND
LATCH
7 AGND
10 DGND
1
2
VREF B
RFB B
DAC B
LTC1590
DAC A
VREF A
RFB A
9
8
VIN A
±10V
OUT1 B 3
OUT2 B 4
OUT2 A 5
OUT1 A 6
15V
33pF
2–
8
1/2
LT1358
3+
5+
1/2
LT1358
6–
4
33pF
–15V
0.01µF
1
VOUT B
( ) VOUT = –VIN
4096
D
7
VOUT A
0.01µF
1590 TA08
10
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