MAX1420 Datasheet, PDF (6/17 Pages) Maxim Integrated Products – 12-Bit, 60Msps, +3.3V, Low-Power ADC with Internal Reference

12-Bit, 60Msps, +3.3V, Low-Power ADC
with Internal Reference
Typical Operating Characteristics (continued)
(V_AVDD = V_DVDD = +3.3V, AGND = DGND = 0, V_IN = ±1.024V, differential input voltage at -0.5dB FS, f_CLK = 60.006MHz (50% duty
cycle), digital output load C_L = 10pF, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.)
TWO-TONE IMD PLOT
(8192-POINT DATA RECORD)
DIFFERENTIAL INPUT
0
f_IN1 = 11.566036MHz
f_IN2 = 13.4119138MHz
-20
A_IN1 = A_IN2 = -6.5dB FS
TWO TONE
-40
ENVELOPE: -0.5dB FS
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT FREQUENCY
70
66
62
SIGNAL-TO-NOISE + DISTORTION
vs. ANALOG INPUT FREQUENCY
70
66
62
-60
f_IN1
IMD3 IMD2
f_IN2
IMD2
IMD3
58
58
-80
-100
54
54
-120
0
5 10 15 20 25 30
ANALOG INPUT FREQUENCY (MHz)
50
1
10
100
ANALOG INPUT FREQUENCY (MHz)
50
1
10
100
ANALOG INPUT FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT FREQUENCY
-50
-56
-62
-68
-74
-80
1
10
100
ANALOG INPUT FREQUENCY (MHz)
SIGNAL-TO-NOISE + DISTORTION
vs. INPUT POWER (f_IN = 15MHz)
80
70
60
50
40
30
20
10
0
-10
-70 -60 -50 -40 -30 -20 -10 0
INPUT POWER (dB FS)
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
85
77
69
61
53
45
1
10
100
ANALOG INPUT FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION
vs. INPUT POWER (f_IN = 15MHz)
-20
-30
-40
-50
-60
-70
-80
-70 -60 -50 -40 -30 -20 -10 0
INPUT POWER (dB FS)
SIGNAL-TO-NOISE RATIO
vs. INPUT POWER (f_IN = 15MHz)
70
60
50
40
30
20
10
0
-10
-70 -60 -50 -40 -30 -20 -10 0
INPUT POWER (dB FS)
SPURIOUS-FREE DYNAMIC RANGE
vs. INPUT POWER (f_IN = 15MHz)
80
70
60
50
40
30
20
-70 -60 -50 -40 -30 -20 -10 0
INPUT POWER (dB FS)
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