MAX1422 Datasheet, PDF (6/15 Pages) Maxim Integrated Products – 12-Bit, 20Msps, 3.3V, Low-Power ADC with Internal Reference

12-Bit, 20Msps, 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 drive, A_IN = -0.5dBFS, f_CLK = 20MHz (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.)
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT POWER (f_IN = 5MHz)
100
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT POWER (f_IN = 5MHz)
-10
SIGNAL-TO-NOISE PLUS DISTORTION
vs. ANALOG INPUT POWER (f_IN = 5MHz)
80
-20
70
80
-30
60
60
-40
50
40
40
-50
30
-60
20
20
-70
10
0
-60 -50 -40 -30 -20 -10 0
ANALOG INPUT POWER (dB FS)
-80
-60 -50 -40 -30 -20 -10 0
ANALOG INPUT POWER (dB FS)
0
-60 -50 -40 -30 -20 -10 0
ANALOG INPUT POWER (dB FS)
SPURIOUS-FREE DYNAMIC RANGE
vs. TEMPERATURE
84
f_IN = 5.5224MHz
SIGNAL-TO-NOISE RATIO
vs. TEMPERATURE
70
f_IN = 5.5224MHz
TOTAL HARMONIC DISTORTION
vs. TEMPERATURE
-67
f_IN = 5.5224MHz
80
68
-69
76
66
-71
72
64
-73
68
62
-75
64
-40 -15 10
35
60
85
TEMPERATURE (°C)
SIGNAL-TO-NOISE PLUS DISTORTION
vs. TEMPERATURE
70
f_IN = 5.5224MHz
68
66
64
62
60
-40 -15 10
35
60
85
TEMPERATURE (°C)
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
2
-77
-40 -15 10
35
60
85
TEMPERATURE (°C)
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
0.50
1
0.25
0
0
-1
-0.25
60
-40 -15 10
35
60
85
TEMPERATURE (°C)
-2
-0.50
0
1024
2048
3072
4096
0
1024
2048
3072
4096
DIGITAL OUTPUT CODE
DIGITAL OUTPUT CODE
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