Rainbow Electronics MAX1211 - Manual (Page 27)

MAX1211
65Msps, 12-Bit, IF Sampling ADC
______________________________________________________________________________________ 27
21.5k
Ω
1% 21.5k
Ω
1% 21.5k
Ω
1% 21.5k
Ω
1% 21.5k
Ω
1%
1M
Ω
1M
Ω
47
Ω
1.47k
Ω
+3.3V
2
REFP REFN COM
REFOUT
GND
2
3
1/4
MAX4254
2.000V
1
1
39 38 39 38
2 3
1 1µ
F
10
µ F
6V
0.1
µ F
V
DD
3
330
µ
F
6V
+3.3V
UNCOMMITTED
NOTE:
ONE FRONT-END REFERENCE CIRCUIT
SUPPORTS UP TO 8 MAX1211s.
+3.3V
0.1
µ
F
2.2
µ F
0.1
µ
F
*1
µ
F
0.1
µ F
0.1
µ F
0.1
µ F
10
µ
F
2.2
µ
F
MAX1211
MAX6066
2.500V
REFIN REFIN
REFP REFN COM
REFOUT
GND V
DD
0.1
µ F
2.2
µ
F
0.1
µ
F
*1
µ
F
0.1
µ F
0.1
µ F
0.1
µ F
10
µ F
2.2
µ F
MAX1211
47
Ω
1.47k
Ω
6 5
1/4
MAX4254
1.500V
7
10
µ F
6V
330
µ
F
6V
47
Ω
1.47k
Ω
9
10
1/4
MAX4254
1.000V
8
10
µ F
6V
330
µ
F
6V
11
12 13
4
14
0.1
µ
F
MAX4254
1/4
1 2 3
*PLACE AS CLOSE TO THE DEVICE AS POSSIBLE.
Figure 13. External Unbuffered Reference Driving Eight ADCs with MAX4254 and MAX6066