LTC1609I 查看數據表（PDF） - Linear Technology
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LTC1609I Datasheet PDF : 24 Pages
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LTC1609
APPLICATIO S I FOR ATIO
INPUT RANGE
0V TO 10V
WITHOUT TRIM
200Ω
100Ω
VIN
33.2k
+
+
2.2µF 2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
WITH TRIM
(ADJUST OFFSET FIRST AT 0V, THEN ADJUST GAIN)
200Ω
100Ω
5V
33.2k VIN
OFFSET
TRIM
50k
5V
GAIN
TRIM
50k
+
2.2µF
576k
+
2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
0V TO 5V
200Ω
33.2k
LTC1609
R1IN
100Ω
AGND1
R2IN
VIN
R3IN
CAP
+
+
2.2µF 2.2µF
REF
AGND2
200Ω
5V
OFFSET
TRIM
50k
33.2k
100Ω
VIN
+
2.2µF
5V
GAIN
TRIM 50k
576k
+
2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
0V TO 4V
200Ω
VIN
100Ω
33.2k
+
+
2.2µF 2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
100Ω
200Ω
VIN
5V
OFFSET
TRIM
50k
33.2k
5V
GAIN
TRIM
50k
+
2.2µF
576k
+
2.2µF
Figure 3a. Offset/Gain Circuits for Unipolar Input Ranges
Table 1a. Analog Input Range Connections for Figure 3a
ANALOG INPUT
RANGE
CONNECT R1IN
VIA 200Ω TO
CONNECT R2IN
VIA 100Ω TO
0V to 10V
AGND
VIN
0V to 5V
AGND
AGND
0V to 4V
VIN
AGND
CONNECT R3IN
TO
AGND
VIN
VIN
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
1609 F03a
INPUT
IMPEDANCE
13.3kΩ
10kΩ
10.7kΩ
10
1609fa
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