Typical operating characteristics – Rainbow Electronics MAX1418 User Manual
Page 5
MAX1418
15-Bit, 65Msps ADC with -78.2dBFS
Noise Floor for IF Applications
_______________________________________________________________________________________
5
FFT PLOT
(32,768-POINT DATA RECORD,
COHERENT SAMPLING)
MAX1418 toc01
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dBFS)
30
25
20
15
10
5
-100
-80
-60
-40
-20
0
-120
0
f
CLK
= 65.0117MHz
f
IN
= 15.0010MHz
A
IN
= -1.97dBFS
SNR = 75dB
SFDR1 = 87.8dBc
SFDR2 = 94.7dBc
HD2 = -96.9dBc
HD3 = -87.8dBc
FFT PLOT
(32,768-POINT DATA RECORD,
COHERENT SAMPLING)
MAX1418 toc02
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dBFS)
30
25
20
15
10
5
-100
-80
-60
-40
-20
0
-120
0
f
CLK
= 65.0117MHz
f
IN
= 34.9997MHz
A
IN
= -1.98dBFS
SNR = 74.8dB
SFDR1 = 86.55dBc
SFDR2 = 93.5dBc
HD2 = -92.6dBc
HD3 = -86.4dBc
FFT PLOT
(32,768-POINT DATA RECORD,
COHERENT SAMPLING)
MAX1418 toc03
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dBFS)
30
25
20
15
10
5
-100
-80
-60
-40
-20
0
-120
0
f
CLK
= 65.0117MHz
f
IN
= 70.0015MHz
A
IN
= -2.02dBFS
SNR = 73.7dB
SFDR1 = 85.6dBc
SFDR2 = 91.2dBc
HD2 = -85.6dBc
HD3 = -96.9dBc
FFT PLOT
(32,768-POINT DATA RECORD,
COHERENT SAMPLING)
MAX1418 toc04
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dBFS)
30
25
20
15
10
5
-100
-80
-60
-40
-20
0
-120
0
f
CLK
= 65.0117MHz
f
IN
= 169.9992MHz
A
IN
= -6.01dBFS
SNR = 68.5dBc
SFDR1 = 67.5dBc
SFDR2 = 82.1dBc
HD2 = -67.5dBc
HD3 = -73.6dBc
68
70
69
73
72
71
75
76
74
77
5
65
85
25
45
105 125 145 165 185
SNR vs. ANALOG INPUT FREQUENCY
(f
CLK
= 65.0117MHz, A
IN
= -2dBFS)
MAX1418toc05
f
IN
(MHz)
SNR (dB)
55
65
85
75
95
105
5
65
85
25
45
105 125 145 165 185
SFDR1/SFDR2 vs. ANALOG INPUT FREQUENCY
(f
CLK
= 65.0117MHz, A
IN
= -2dBFS)
MAX1418toc06
f
IN
(MHz)
SFDR1/SFDR2 (dBc)
SFDR2
SFDR1
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.)