MAX1215 データシートの表示（PDF） - Maxim Integrated
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MAX1215 Datasheet PDF : 20 Pages
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1.8V, 12-Bit, 250Msps ADC for
Broadband Applications
Typical Operating Characteristics
(AVCC = OVCC = 1.8V, AGND = OGND = 0, fSAMPLE = 250MHz, AIN = -1dBFS; see each TOC for detailed information on test condi-
tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output pins
differential RL = 100Ω, TA = +25°C.)
FFT PLOT
(8192-POINT DATA RECORD)
FFT PLOT
(8192-POINT DATA RECORD)
FFT PLOT
(8192-POINT DATA RECORD)
0
-10
fSAMPLE =
249.99936MHz
0
fSAMPLE =
-10 249.99936MHz
0
-10
-20
-30
fIN = 12.78683MHz
AIN = -1.008dBFS
SNR = 66.5dB
-20 fIN = 65.03279MHz
-30
AIN = -1.083dBFS
SNR = 66.7dB
-20
-30
-40
SINAD = 66.2dB
-40 SINAD = 65.6dB
-40
-50
-60
THD = -80.4dBc
SFDR = 83.3dBc
HD2 = -83.3dBc
-50 THD = -72dBc
SFDR = 73.7dBc
-60 HD2 = -82dBc
-50
-60
-70
HD2
HD3 = -88.4dBc
-70 HD3 = -73.7dBc
HD2
-70
HD3
-80
-80
HD3
-80
fSAMPLE =
249.99936MHz
fIN = 199.24876MHz
AIN = -1.018dBFS
SNR = 65.5dB
SINAD = 63.2dB
THD = -67dBc
SFDR = 67.1dBc
HD2 = -89.1dBc HD3
HD3 = -67.1dBc
HD2
-90
-90
-90
-100
-100
-100
-110
0
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
-110
0
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
-110
0
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
0
FFT PLOT
(8192-POINT DATA RECORD)
fSAMPLE =
249.99936MHz
fIN
fIN = 248.62607MHz
AIN = -1.059dBFS
SNR = 65dB
SINAD = 64.2dB
THD = -71.5dBc
HD3
SFDR = 72.4dBc
HD2 = -82.1dBc
HD3 = -72.4dBc
HD2
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
TWO-TONE IMD PLOT
(8192-POINT DATA RECORD)
0
-10
fSAMPLE = 249.99936MHz
fIN1 = 99.21239MHz
-20 fIN2 = 101.1044775MHz
-30
AIN1 = AIN2 = -7dBFS
IMD = -79dBc
fIN1
fIN2
-40
-50
-60
-70
2fIN2 - fIN1
-80
2fIN1 - fIN2
-90
-100
-110
0
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
SNR/SINAD vs. ANALOG INPUT FREQUENCY
(fSAMPLE = 249.99936MHz, AIN = -1dBFS)
70
SNR
67
64
SINAD
61
58
55
0
50 100 150 200 250 300
fIN (MHz)
SFDR vs. ANALOG INPUT FREQUENCY
(fSAMPLE = 249.99936MHz, AIN = -1dBFS)
90
85
80
75
70
65
60
55
50
45
40
0
50 100 150 200 250 300
fIN (MHz)
HD2/HD3 vs. ANALOG INPUT FREQUENCY
(fSAMPLE = 249.99936MHz, AIN = -1dBFS)
-60
-65
HD3
-70
-75
-80
-85
-90
HD2
-95
-100
0
50 100 150 200 250 300
fIN (MHz)
SNR/SINAD vs. ANALOG INPUT AMPLITUDE
(fSAMPLE = 249.99936MHz, fIN = 65.03279MHz)
70
60
SNR
50
SINAD
40
30
20
10
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0
ANALOG INPUT AMPLITUDE (dBFS)
_______________________________________________________________________________________ 5
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