MAX1444 Datasheet, PDF (15/20 Pages) Maxim Integrated Products – 10-Bit, 40Msps, 3.0V, Low-Power ADC with Internal Reference

10-Bit, 40Msps, 3.0V, Low-Power
ADC with Internal Reference
+5V
0.1µF
300Ω
300Ω
0.1µF
MAX4108
600Ω
-5V
0.1µF
600Ω
+5V
INPUT
0.1µF
MAX4108
-5V
0.1µF
300Ω
300Ω
0.1µF
600Ω
300Ω
300Ω
+5V
0.1µF
MAX4108
-5V
0.1µF
600Ω
LOWPASS FILTER
R_ISO
50Ω
C_IN
22pF
IN+
MAX1444
COM
LOWPASS FILTER
IN-
R_ISO
50Ω
C_IN
22pF
Figure 7. Typical Application Circuit for Single-Ended to Differential Conversion
25Ω
0.1µF
10pF
V_IN
3 T1 4
N.C. ₅
2
2.2µF
1
6
MINI-CIRCUITS
ADT1–1WT
25Ω
0.1µF
10pF
IN+
MAX1444
COM
IN-
Figure 8. Using a Transformer for AC Coupling
REFP
V_IN
0.1µF
1kΩ
R_ISO
MAX4108
100Ω
C_IN
1kΩ
REFN _0.1µF
R_ISO
100Ω
R_ISO = 50Ω
C_IN
C_IN = 22pF
Figure 9. Single-Ended AC-Coupled Input
IN+
MAX1444
COM
IN-
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