Datasheet

10
LTC1609
1609fa
Figure 3a. Offset/Gain Circuits for Unipolar Input Ranges
Table 1a. Analog Input Range Connections for Figure 3a
ANALOG INPUT CONNECT R1
IN
CONNECT R2
IN
CONNECT R3
IN
INPUT
RANGE VIA 200Ω TO VIA 100Ω TO TO IMPEDANCE
0V to 10V AGND V
IN
AGND 13.3kΩ
0V to 5V AGND AGND V
IN
10kΩ
0V to 4V V
IN
AGND V
IN
10.7kΩ
APPLICATIO S I FOR ATIO
WUUU
+
+
2.2µF
2.2µF
33.2k
200Ω
100Ω
V
IN
+
R1
IN
AGND1
R2
IN
R3
IN
CAP
REF
AGND2
2.2µF
+
2.2µF
50k
33.2k
200Ω
100Ω
576k
5V
50k
5V
LTC1609
R1
IN
AGND1
R2
IN
R3
IN
CAP
REF
AGND2
LTC1609
0V TO 10V
0V TO 5V
0V TO 4V
WITHOUT TRIMINPUT RANGE
WITH TRIM
(ADJUST OFFSET FIRST AT 0V, THEN ADJUST GAIN)
V
IN
+
+
2.2µF
2.2µF
33.2k
200Ω
100Ω
V
IN
+
R1
IN
AGND1
R2
IN
R3
IN
CAP
REF
AGND2
2.2µF
+
2.2µF
OFFSET
TRIM
GAIN
TRIM
OFFSET
TRIM
GAIN
TRIM
OFFSET
TRIM
GAIN
TRIM
50k
33.2k
200Ω
100Ω
576k
5V
50k
5V
LTC1609
R1
IN
AGND1
R2
IN
R3
IN
CAP
REF
AGND2
LTC1609
V
IN
+
+
2.2µF
2.2µF
33.2k
100Ω
200Ω
V
IN
+
R1
IN
AGND1
R2
IN
R3
IN
CAP
REF
AGND2
2.2µF
1609 F03a
+
2.2µF
50k
33.2k
200Ω
100Ω
576k
5V
50k
5V
LTC1609
R1
IN
AGND1
R2
IN
R3
IN
CAP
REF
AGND2
LTC1609
V
IN