MAX1215N Datasheet, PDF (5/21 Pages) Maxim Integrated Products – 1.8V, Low-Power, 12-Bit, 250Msps ADC for Broadband Applications

1.8V, Low-Power, 12-Bit, 250Msps
ADC for Broadband Applications
Typical Operating Characteristics
(AV_CC = OV_CC = 1.8V, AGND = OGND = 0, f_SAMPLE = 250MHz, A_IN = -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 R_L = 100Ω, T_A = +25°C.)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0
FFT PLOT
(8192-POINT DATA RECORD)
f_SAMPLE = 250MHz
f_IN = 11.566MHz
A_IN = -0.982dBFS
SNR = 67.1dB
SINAD = 66.953dB
THD = -82.5dBc
SFDR = 84.7dBc
HD2 = -94.9dBc
3
HD3 = -84.7dBc
5
2
4
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0
FFT PLOT
(8192-POINT DATA RECORD)
f_SAMPLE = 250MHz
f_IN = 65.033MHz
A_IN = -1.008dBFS
SNR = 67dB
SINAD = 66.9dB
THD = -83.6dBc
SFDR = 87dBc
HD2 = -87dBc
HD3 = -81.8dBc
35
2
4
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
0
-10
-20
-30
-40
-50
-60
-70
5
-80
-90
-100
-110
-120
0
FFT PLOT
(8192-POINT DATA RECORD)
f_SAMPLE = 250MHz
f_IN = 199.249MHz
A_IN = -1.004dBFS
SNR = 66dB
SINAD = 65.9dB
THD = -81dBc
SFDR = 82.7dBc
HD2 = -90.9dBc
HD3 = -82.7dBc
4
32
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(8192-POINT DATA RECORD)
0
-10
-20
-30
-40
-50
-60 ₂
-70 ³ ₅
-80
4
-90
f_SAMPLE = 250MHz
f_IN = 248.627MHz
A_IN = -0.933dBFS
SNR = 65.4dB
SINAD = 65.185dB
THD = -78dBc
SFDR = 82.7dBc
HD2 = -82.7dBc
HD3 = -83.1dBc
-100
-110
-120
0
20 40 60 80 100 120
ANALOG INPUT FREQUENCY (MHz)
TWO-TONE IMD PLOT
(32,768-POINT DATA RECORD)
0
f_SAMPLE = 250MHz
f_IN1 = 99MHz
-25 f_IN2 = 101MHz
IMD = -86dBc
-50
-75
-100
-125
0
25
50
75
100 125
ANALOG INPUT FREQUENCY (MHz)
SNR/SINAD vs. ANALOG INPUT FREQUENCY
(f_SAMPLE = 250MHz, A_IN = -1dBFS)
70
SNR
67
64
SINAD
61
58
55
52
0
50 100 150 200 250 300
f_IN (MHz)
SFDR vs. ANALOG INPUT FREQUENCY
(f_SAMPLE = 250MHz, A_IN = -1dBFS)
90
85
80
75
70
65
0
50 100 150 200 250 300
f_IN (MHz)
HD2/HD3 vs. ANALOG INPUT FREQUENCY
(f_SAMPLE = 250MHz, AIN = -1dBFS)
-52
-56
-60
-64
-68
-72
-76
-80
-84
-88
-92
-96
-100
0
HD2
HD3
50 100 150 200 250 300
f_IN (MHz)
SNR/SINAD vs. ANALOG INPUT AMPLITUDE
(f_SAMPLE = 250MHz, f_IN = 65.033MHz)
70
65
60
55
50
SNR
45
SINAD
40
35
30
25
20
15
10
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0
ANALOG INPUT AMPLITUDE (dBFS)
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