MAX1338 Datasheet, PDF (8/24 Pages) Maxim Integrated Products – 14-Bit, 4-Channel, Software-Programmable, Multiranging, Simultaneous-Sampling ADC

14-Bit, 4-Channel, Software-Programmable,
Multiranging, Simultaneous-Sampling ADC
Typical Operating Characteristics (continued)
(AV_DD = DV_DD = +5.0V, DRV_DD = +3.0V, AGND = DGND = DRGND = 0, INTCLK/EXTCLK = AGND, f_CLK = 5MHz, input range =
±10V, REFP2 = REFP1, REFN2 = REFN1, COM1 = COM2, 1.0nF from REFADC to AGND, 1.0µF and 0.1µF from COM1 to AGND,
0.1µF from REFP1 to AGND, 0.1µF from REFN1 to AGND, 1.0µF from REFP1 to REFN1.)
FFT AT f_SAMPLE = 150ksps, f_IN = 10kHz
0
-25
-50
-75
-100
-125
0
15
30
45
60
75
FREQUENCY (kHz)
TOTAL HARMONIC DISTORTION
vs. CLOCK FREQUENCY
-90
-92
-94
-96
-98
-100
-102
-104
-106
-108
-110
1 2 3 4 5 6 7 8 9 10
f_CLK (MHz)
SIGNAL-TO-NOISE PLUS DISTORTION
vs. REFERENCE VOLTAGE
80
79
78
77
76
75
74
73
72
71
70
2.0 2.2 2.4 2.6 2.8 3.0
V_REFADC (V)
SIGNAL-TO-NOISE RATIO
vs. CLOCK FREQUENCY
80
79
78
77
76
75
74
73
72
71
70
1 2 3 4 5 6 7 8 9 10
f_CLK (MHz)
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK FREQUENCY
110
105
100
95
90
85
80
1 2 3 4 5 6 7 8 9 10
f_CLK (MHz)
TOTAL HARMONIC DISTORTION
vs. REFERENCE VOLTAGE
-85
-87
-89
-91
-93
-95
-97
-99
-101
-103
-105
2.0 2.2 2.4 2.6 2.8 3.0
V_REFADC (V)
SIGNAL-TO-NOISE PLUS DISTORTION
vs. CLOCK FREQUENCY
80
79
78
77
76
75
74
73
72
71
70
1 2 3 4 5 6 7 8 9 10
f_CLK (MHz)
SIGNAL-TO-NOISE RATIO
vs. REFERENCE VOLTAGE
80
79
78
77
76
75
74
73
72
71
70
2.0 2.2 2.4 2.6 2.8 3.0
V_REFADC (V)
SPURIOUS-FREE DYNAMIC RANGE
vs. REFERENCE VOLTAGE
110
105
100
95
90
85
80
2.0 2.2 2.4 2.6 2.8 3.0
V_REFADC (V)
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