MAX1418 Datasheet, PDF (5/20 Pages) Maxim Integrated Products – 15-Bit, 65Msps ADC with -78.2dBFS Noise Floor for IF Applications

15-Bit, 65Msps ADC with -78.2dBFS
Noise Floor for IF Applications
Typical Operating Characteristics
(AV_CC = 5V, DV_CC = DRV_CC = 2.5V, INP and INN driven differentially with a -2dBFS amplitude, CLKP and CLKN driven differentially
with a 2V_P-P sinusoidal input signal, C_L = 5pF at digital outputs, f_CLK = 65MHz, T_A = 25°C. All AC data based on a 32k-point FFT
record and under coherent sampling conditions.)
FFT PLOT
(32,768-POINT DATA RECORD,
COHERENT SAMPLING)
0
f_CLK = 65.0117MHz SFDR1 = 87.8dBc
-20
f_IN = 15.0010MHz
A_IN = -1.97dBFS
SFDR2 = 94.7dBc
HD2 = -96.9dBc
SNR = 75dB
HD3 = -87.8dBc
-40
-60
-80
-100
-120
0
5 10 15 20 25 30
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(32,768-POINT DATA RECORD,
COHERENT SAMPLING)
0
f_CLK = 65.0117MHz SFDR1 = 86.55dBc
-20
f_IN = 34.9997MHz
A_IN = -1.98dBFS
SFDR2 = 93.5dBc
HD2 = -92.6dBc
SNR = 74.8dB
HD3 = -86.4dBc
-40
-60
-80
-100
-120
0
5 10 15 20 25 30
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(32,768-POINT DATA RECORD,
COHERENT SAMPLING)
0
f_CLK = 65.0117MHz
-20
f_IN = 70.0015MHz
A_IN = -2.02dBFS
SNR = 73.7dB
-40
SFDR1 = 85.6dBc
SFDR2 = 91.2dBc
HD2 = -85.6dBc
-60
HD3 = -96.9dBc
-80
-100
-120
0
5 10 15 20 25 30
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(32,768-POINT DATA RECORD,
COHERENT SAMPLING)
0
f_CLK = 65.0117MHz
-20
f_IN = 169.9992MHz
A_IN = -6.01dBFS
SNR = 68.5dBc
-40 ^{SFDR1 = 67.5dBc}
SFDR2 = 82.1dBc
HD2 = -67.5dBc
-60 _{HD3 = -73.6dBc}
-80
-100
-120
0
5 10 15 20 25 30
ANALOG INPUT FREQUENCY (MHz)
SNR vs. ANALOG INPUT FREQUENCY
(f_CLK = 65.0117MHz, A_IN = -2dBFS)
77
76
75
74
73
72
71
70
69
68
5
25 45 65 85 105 125 145 165 185
f_IN (MHz)
SFDR1/SFDR2 vs. ANALOG INPUT FREQUENCY
(f_CLK = 65.0117MHz, A_IN = -2dBFS)
105
95
SFDR2
85
75
SFDR1
65
55
5
25 45 65 85 105 125 145 165 185
f_IN (MHz)
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