MAX1425_11 Datasheet, PDF (7/16 Pages) Maxim Integrated Products – 10-Bit, 20Msps ADC Separate Digital Supply Input for 3V Logic Compatibility

10-Bit, 20Msps ADC
Typical Operating Characteristics (continued)
(V_AVDD = V_CMLP = +5V, V_DVDD = +3.3V, V_CMLN = V_AGND = 0V, internal reference, digital output load = 35pF, f_CLK = 20Msps (50%
duty cycle), for dynamic performance 0dB is full scale, T_A = +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION
vs. POWER (f_IN = 9.884MHz)
0
EFFECTIVE NUMBER OF BITS
vs. POWER (f_IN = 2.003MHz)
10
EFFECTIVE NUMBER OF BITS
vs. POWER (f_IN = 5.009MHz)
10
8
8
-20
6
6
-40
4
4
-60
2
2
-80
-60
-45
-30
-15
0
INPUT (dB)
EFFECTIVE NUMBER OF BITS
vs. POWER (f_IN = 9.884MHz)
10
0
-60
-45
-30
-15
0
INPUT (dB)
EFFECTIVE NUMBER OF BITS
vs. INPUT FREQUENCY
10.0
0
-60
-45
-30
-15
0
INPUT (dB)
SIGNAL-TO-NOISE RATIO
vs. INPUT FREQUENCY
60
8
9.6
59
6
9.2
4
8.8
58
2
8.4
0
-60
-45
-30
-15
0
INPUT (dB)
8.0
57
2
4
6
8
10
2
4
6
8
10
INPUT FREQUENCY (MHz)
INPUT FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION
vs. INPUT FREQUENCY
-60
-65
-70
-75
-80
2
4
6
8
10
INPUT FREQUENCY (MHz)
SIGNAL-TO-NOISE PLUS DISTORTION
vs. INPUT FREQUENCY
61
60
59
58
57
2
4
6
8
10
INPUT FREQUENCY (MHz)
FFT PLOT (f_IN = 2MHz)
0
-20
-40
-60
-80
-100
-120
-140
-160
0 1 2 3 4 5 6 7 8 9 10
FREQUENCY (MHz)
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