Datasheet

AD8275
Rev. A | Page 13 of 16
CONFIGURATIONS
Figure 36 and Figure 37, along with Table 6 and Table 7, provide
examples of the possible input and output ranges for various
supplies and reference voltages.
Note that Table 6 and Table 7 list the typical voltage range of the
AD8275; these values do not reflect variation over process or
temperature.
HI
+SWING
–SWING
USEFUL V
OUT
LINEAR V
IN
RANGE
LO
HI
LO
MID
07546-136
V
REF
AD8275
7
4
5
6
8
2
50kΩ
0.1µF
50kΩ
20kΩ
20kΩ
10kΩ
3
+IN
–IN
V
INP
V
INN
REF2
REF1
–V
S
+V
S
+5V
OUT
SENSE
1
V
OUT
HI
+SWING
–SWING
USEFUL V
OUT
LINEAR V
IN
RANGE
LO
HI
LO
MID
07546-137
V
REF
AD8275
7
4
5
6
8
2
50kΩ
0.1µF
50kΩ
20kΩ
20kΩ
10kΩ
3
+IN
–IN
REF2
REF1
–V
S
+V
S
+5V
OUT
SENSE
1
V
OUT
V
INP
V
INN
Figure 36. Split Reference Figure 37. Shared Reference
Table 6. Input and Output Relationships for Split Reference
Configuration in Figure 36
+V
S
1
V
REF
V
OUT
for
V
IN
= 0 V
Linear
Differential
V
IN
Range
Useful V
OUT
Ranges
5 V 5 V 2.5 V High: +12 V
Mid: 0 V
Low: −12.3 V
High: +4.95 V
Swing: +2.45 V,
−2.455 V
Low: +0.045 V
5 V 2.5 V 1.25 V High: +18.3 V
Mid: 0 V
Low: −6 V
High: +4.95 V
Swing: +3.7 V,
−1.205 V
Low: +0.045 V
5 V 4.096 V 2.048 V High: +14.3 V
Mid: 0 V
Low: −10 V
High: +4.95 V
Swing: +2.902 V,
−2.003 V
Low: +0.045 V
3.3 V 3.3 V 1.65 V High: +8 V
Mid: 0 V
Low: −8 V
High: +3.24 V
Swing: +1.59 V,
−1.605 V
Low: +0.045 V
3.3 V 2.5 V 1.25 V High: +10 V
Mid: 0 V
Low: −6 V
High: +3.24 V
Swing: +1.99 V,
−1.205 V
Low: +0.045 V
1
−V
S
= 0 V.
Table 7. Input and Output Relationships for Shared
Reference Configuration in Figure 37
+V
S
1
V
REF
V
OUT
for
V
IN
= 0 V
Linear
Differential
V
IN
Range
Useful V
OUT
Ranges
5 V 5 V 5 V High: −0.1 V
Mid: 0 V
Low: −24.7 V
High: +4.98 V
Swing: −4.94 V
Low: +0.06 V
5 V 4.096 V 4.096 V High: +4.4 V
Mid: 0 V
Low: −20.2 V
High: +4.98 V
Swing: +0.884 V
to −4.03 V
Low: +0.06 V
5 V 3 V 3 V High: +9.5 V
Mid: 0 V
Low: −14.8 V
High: +4.95 V
Swing: +1.9 V,
−2.955 V
Low: +0.045 V
5 V 2.5 V 2.5 V High: +12 V
Mid: 0 V
Low: −12.3 V
High: +4.95 V
Swing: +2.45 V,
−2.455 V
Low: +0.045 V
5 V 2.048 V 2.048 V High: +14.3 V
Mid: 0 V
Low: −10 V
High: +4.95 V
Swing: +2.902 V,
−2.003 V
Low: +0.045 V
5 V 1.25 V 1.25 V +18.3 V to
−6 V
High: +4.95 V
Swing: +3.7 V,
−1.205 V
Low: +0.045 V
0 V 0 V 0 V 24.5 V to 0.2 V High: 4.95 V
Swing: 4.95 V
Low: 0.045 V
1
−V
S
= 0 V.