Datasheet

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MAX174/MX574A/MX674A
Industry-Standard, Complete 12-Bit ADCs
Figure 13. Unipolar Input Connections
Figure 12. Ideal Unipolar Transfer Function
Figure 15. Bipolar Input Connections
Figure 14. Ideal Bipolar Transfer Function
REFOUT
GAIN
REFIN
BIPOFF
10V
IN
*ADDITIONAL PINS OMITTED FOR CLARITY
100I
100kI
+12V TO +15V
-12V TO -15V
0 TO +10V
0 TO +20V
ANALOG
INPUTS
OFFSET
R
1
100kI
R
2
100I
20V
IN
AGND
MAX174*
MX574A
MX674A
REFIN
GAIN
REFOUT
BIPOFF
10V
IN
*ADDITIONAL PINS OMITTED FOR CLARITY
Q5V
Q10V
ANALOG
INPUTS
R
2
100I
R
1
100I
OFFSET
20V
IN
AGND
MAX174*
MX574A
MX674A
0
OUTPUT CODE
1111 1111 1111
1111 1111 1110
1111 1111 1101
0000 0000 0011
0000 0000 0010
0000 0000 0001
0000 0000 0000
123 FS-1
FULL-SCALE
TRANSITION
FS = 4069 LSBs
FS
OUTPUT CODE
1111 1111 1111
1111 1111 1110
1111 1111 1101
1000 0000 0001
1000 0000 0000
0111 1111 1111
0111 1111 1110
0000 0000 0011
0000 0000 0010
0000 0000 0001
0000 0000 0000
ANALOG INPUT VOLTAGE IN LSBs
FS
2
-
FS = 4069 LSBs
FS
2
-
+2 -2 -1 01
FS
2
2
FS
2
1
FS
2
FS
2
-
+1