Sundance SMT317 - Manual (Page 21)

Version 6.1 Page 21 of 24 SMT317 User Manual
17. Input Circuitry
The jumper located near the channel input connector is used to select the input
mode.
If the jumper is installed it selects single-ended input.
VIN (+) ADC
R5 27R
Figure 7: ADC Input circuitry
CH0-
R9
10K
R7 10K
J1
1
2
3
4
5
R1 27R
R12
R11
+
C10
1uF
1
2
R10
10K
R8
510K
R2 510K
CH0+
C1
470nF
U1B
OPA2350
5
6
7
IN+
IN-
OUT
8
4
VIN (-) ADC
J2
JMP2
1
2
0AV
R6 510K
R3 10K C7
220pF
REF1 ADC
R4
510K
U1A
OPA2350
3
2
1
8
4
IN+
IN-
OUT
8
4
C11
100nF