MAX1206 Datasheet, PDF (25/29 Pages) Maxim Integrated Products – 40Msps, 12-Bit ADC

40Msps, 12-Bit ADC
+3.3V
0.1µF
1
MAX6062
3
2 ^16.2kΩ
1µF
MAX4250
3
5
0.1µF
1
47Ω
4
2
10µF
6V
1.47kΩ
NOTE: ONE FRONT-END REFERENCE CIRCUIT PROVIDES ±15mA OF OUTPUT DRIVE.
*PLACE AS CLOSE TO THE DEVICE AS POSSIBLE.
0.1µF
V_DD
39
REFIN
1
REFP
0.1µF
2.048V
*1µF
MAX1206
2
REFN
38
47µF
REFOUT
6V
0.1µF
GND
3
COM
2.2µF
0.1µF
10µF
0.1µF
0.1µF
2.2µF
+3.3V
0.1µF
V_DD
39 _REFIN
1
REFP
0.1µF
MAX1206
*1µF
2
REFN
38
REFOUT
0.1µF
GND
3
COM
2.2µF
0.1µF
10µF
0.1µF
0.1µF
2.2µF
Figure 12. External Buffered (MAX4250) Reference Drive Using a MAX6062 Bandgap Reference
Route high-speed digital signal traces away from the
sensitive analog traces. Keep all signal lines short and
free of 90° turns.
Ensure that the differential analog input network layout
is symmetric and that all parasitics are balanced equal-
ly. Refer to the MAX1211 evaluation kit data sheet for
an example of symmetric input layout.
Parameter Definitions
Integral Nonlinearity (INL)
Integral nonlinearity is the deviation of the values on an
actual transfer function from a straight line. This straight
line is either a best-straight-line fit or a line drawn
between the end points of the transfer function, once
offset and gain errors have been nullified. The static lin-
earity parameters for the MAX1206 are guaranteed by
design using the best-straight-line fit method.
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