Rainbow Electronics MAX1444 - Manual (Page 5)

MAX1444
10-Bit, 40Msps, +3.0V, Low-Power
ADC with Internal Reference
_______________________________________________________________________________________ 5
MAX1444-01
-100
-70
-80
-90
-50
-60
-10
-20
-30
-40
0
0 2 4 6 8 10 12 14 16 18 20
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
SINAD = 59dB
SNR = 59.3dB
THD = -71.6dBc
SFDR = 73dBc
FFT PLOT (f IN = 7.51MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
3RD HARMONIC
2ND HARMONIC
MAX1444-02
-100
-70
-80
-90
-50
-60
-10
-20
-30
-40
0
0 2 4 6 8 10 12 14 16 18 20
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
SINAD = 58.9dB
SNR = 59.1dB
THD = -72.8dBc
SFDR = 75.2dBc
FFT PLOT (f IN = 19.91MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
3RD HARMONIC
2ND HARMONIC
MAX1444-03
-100
-70
-80
-90
-50
-60
-10
-20
-30
-40
0
0 5 10 15 20 25
FFT PLOT (f
IN
= 47MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
SINAD = 58.1dB
SNR = 58.4dB
THD = -69.7dBc
SFDR = 72.4dBc
3RD HARMONIC
2ND HARMONIC
MAX1444-04
-100
-70
-80
-90
-50
-60
-10
-20
-30
-40
0
0 2 4 6 8 10 12 14 16 18 20
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
SINAD = 59.7dB
SNR = 60dB
THD = -71.8dBc
SFDR = 75dBc
FFT PLOT (f IN = 7.51MHz,
8192-POINT FFT, SINGLE-ENDED INPUT)
3RD HARMONIC
2ND HARMONIC
MAX1444-05
-100
-70
-80
-90
-50
-60
-10
-20
-30
-40
0
0 2 4 6 8 10 12 14 16 18 20
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
SINAD = 59.1dB
SNR = 59.2dB
THD = -74.6dBc
SFDR = 77.6dBc
FFT PLOT (f IN = 19.91MHz,
8192-POINT FFT, SINGLE-ENDED INPUT)
3RD HARMONIC
2ND HARMONIC
6
1 100 1000
FULL-POWER INPUT BANDWIDTH vs.
ANALOG INPUT FREQUENCY (SINGLE-ENDED)
-6
-8
-4
-2
0
2
4
MAX1444-06
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
10
6
1 100 1000
SMALL-SIGNAL INPUT BANDWIDTH vs.
ANALOG INPUT FREQUENCY (SINGLE-ENDED)
-6
-8
-4
-2
0
2
4
MAX1444-07
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
10
V IN = 100mVp-p
MAX1444-08
-100
-70
-80
-90
-50
-60
-10
-20
-30
-40
0
0 5 10 15 20 25
ANALOG INPUT FREQUENCY (MHz)
AMPLITUDE (dB)
TWO-TONE INTERMODULATION
8192-POINT IMD (DIFFERENTIAL INPUT)
f 1 = 11.5MHz AT
-6.5dB FS
f
2 = 13.5MHz AT
-6.5dB FS
3RD IMD = -76dBc
80
40
1 10 100
SPURIOUS-FREE DYNAMIC RANGE vs.
ANALOG INPUT FREQUENCY
50
45
MAX1444-09
ANALOG INPUT FREQUENCY (MHz)
SFDR (dBc)
60
55
65
70
75
SINGLE-ENDED
DIFFERENTIAL
Typical Operating Characteristics
(V DD = +3.0V, OV DD = +2.7V, internal reference, differential input at -0.5dB FS, f CLK = 40MHz, C L
≈ 10pF, T
A = +25°C, unless other-
wise noted.)