LTC1609I 查看數據表（PDF） - Linear Technology
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LTC1609I Datasheet PDF : 24 Pages
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APPLICATIO S I FOR ATIO
INPUT RANGE
± 10V
WITHOUT TRIM
200Ω
VIN
100Ω
33.2k
+
+
2.2µF 2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
LTC1609
WITH TRIM
(ADJUST OFFSET FIRST AT 0V, THEN ADJUST GAIN)
100Ω
5V
OFFSET
TRIM
50k
200Ω
VIN
33.2k
+
2.2µF
5V
GAIN
TRIM
50k
576k
+
2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
± 5V
200Ω
100Ω
VIN
33.2k
+
+
2.2µF 2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
200Ω
33.2k
100Ω
5V
VIN
OFFSET
TRIM
50k
+
2.2µF
5V
GAIN
TRIM
50k
576k
+
2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
± 3.3V
200Ω
VIN
100Ω
33.2k
+
+
2.2µF 2.2µF
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
200Ω
VIN
100Ω
5V
OFFSET
TRIM
50k
33.2k
+
2.2µF
5V
GAIN
TRIM
50k
576k
+
2.2µF
Figure 3b. Offset/Gain Circuits for Bipolar Input Ranges
LTC1609
R1IN
AGND1
R2IN
R3IN
CAP
REF
AGND2
1609 F03b
Table 1b. Analog Input Range Connections for Figure 3b
ANALOG INPUT
RANGE
CONNECT R1IN
VIA 200Ω TO
CONNECT R2IN
VIA 100Ω TO
±10V
VIN
AGND
±5V
AGND
VIN
±3.3V
VIN
VIN
CONNECT R3IN
TO
CAP
CAP
CAP
INPUT
IMPEDANCE
22.9kΩ
13.3kΩ
10.7kΩ
1609fa
11
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