Typical operating characteristics (continued) – Rainbow Electronics MAX1425 User Manual
Page 7
MAX1425
10-Bit, 20Msps ADC
_______________________________________________________________________________________
7
-80
-60
-40
-20
0
TOTAL HARMONIC DISTORTION
vs. POWER (f
IN
= 9.884MHz)
MAX1425-16
INPUT (dB)
THD (dB)
-60
-30
-45
-15
0
0
6
4
2
8
10
EFFECTIVE NUMBER OF BITS
vs. POWER (f
IN
= 9.884MHz)
MAX1425-19
INPUT (dB)
ENOB (bits)
-60
-30
-45
-15
0
0
6
4
2
8
10
EFFECTIVE NUMBER OF BITS
vs. POWER (f
IN
= 2.003MHz)
MAX1425-17
INPUT (dB)
ENOB (bits)
-60
-30
-45
-15
0
0
6
4
2
8
10
EFFECTIVE NUMBER OF BITS
vs. POWER (f
IN
= 5.009MHz)
MAX1425-18
INPUT (dB)
ENOB (bits)
-60
-30
-45
-15
0
8.0
9.2
8.8
8.4
9.6
10.0
EFFECTIVE NUMBER OF BITS
vs. INPUT FREQUENCY
MAX1425-20
INPUT FREQUENCY (MHz)
ENOB (bits)
2
6
4
8
10
57
58
59
60
SIGNAL-TO-NOISE RATIO
vs. INPUT FREQUENCY
MAX1425-21
INPUT FREQUENCY (MHz)
SNR (dB)
2
6
4
8
10
Typical Operating Characteristics (continued)
(V
AVDD
= V
CMLP
= +5V, V
DVDD
= +3.3V, V
CMLN
= V
AGND
= 0, internal reference, digital output load = 35pF, f
CLK
= 20Msps (50%
duty cycle), for dynamic performance 0dB is full scale, T
A
= +25°C, unless otherwise noted.)
-80
-70
-60
TOTAL HARMONIC DISTORTION
vs. INPUT FREQUENCY
MAX1425-22
INPUT FREQUENCY (MHz)
THD (dB)
2
6
4
8
10
-65
-75
57
59
58
60
61
SIGNAL-TO-NOISE PLUS DISTORTION
vs. INPUT FREQUENCY
MAX1425-23
INPUT FREQUENCY (MHz)
SINAD (dB)
2
6
4
8
10
-160
-120
-140
-100
-40
-20
-60
-80
0
0
2
3
4
5
1
6
7
8
9
10
FFT PLOT (f
IN
= 2MHz)
MAX1425-24
FREQUENCY (MHz)
MAGNITUDE (dB)