MAX1449 Datasheet, PDF (5/18 Pages) Maxim Integrated Products – 10-Bit, 105Msps, Single +3.3V, Low-Power ADC with Internal Reference

10-Bit, 105Msps, Single +3.3V, Low-Power
ADC with Internal Reference
Typical Operating Characteristics
(V_DD = +3.3V, OV_DD = +2.0V, internal reference, differential input at -0.5dB FS, f_CLK = 106.2345MHz, C_L ≈ 10pF, T_A = +25°C,
unless otherwise noted.)
FFT PLOT (f_IN = 7.5MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
0
SNR = 58.6dB
-10
SINAD = 58.4dB
-20
THD = -72.7dBc
SFDR = 73.6dBc
-30
-40
-50
2ND HARMONIC
-60
3RD HARMONIC
-70
-80
-90
-100
0
10 20 30 40 50 60
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT (f_IN = 7.5MHz,
8192-POINT FFT, SINGLE-ENDED INPUT)
0
SNR = 57.7dB
-10
SINAD = 57.5dB
-20
THD = -71.8dBc
SFDR = 74.4dBc
-30
-40
2ND HARMONIC
-50
-60
3RD HARMONIC
-70
-80
-90
-100
0
10 20 30 40 50 60
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT (f_IN = 19.99MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
0
SNR = 58.5dB
-10
SINAD = 58.4dB
-20
THD = -73.7dBc
SFDR = 75.9dBc
-30
-40
2ND HARMONIC
-50
3RD HARMONIC
-60
-70
-80
-90
-100
0
10 20 30 40 50 60
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT (f_IN = 19.99MHz,
8192-POINT FFT, SINGLE-ENDED INPUT)
0
SNR = 57.7dB
-10
SINAD = 57.2dB
-20
THD = -67dBc
SFDR = 67.7dBc
-30
-40
2ND HARMONIC
-50
3RD HARMONIC
-60
-70
-80
-90
-100
0
10 20 30 40 50 60
ANALOG INPUT FREQUENCY (MHz)
UNDERSAMPLING FFT PLOT (f_IN = 50.12MHz,
8192-POINT FFT, DIFFERENTIAL INPUT)
0
SNR = 57.9dB
-10 _{SINAD = 56.7dB}
-20 ^{THD = -71.3dBc}
SFDR = 71.1dBc
-30
-40
2ND HARMONIC
-50
-60
3RD HARMONIC
-70
-80
-90
-100
0
10 20 30 40 50 60
ANALOG INPUT FREQUENCY (MHz)
TWO-TONE INTERMODULATION
(8192-POINT IMD, DIFFERENTIAL INPUT)
0
-10
f₁ = 38MHz AT -6.5dB FS
f₂ = 42MHz AT -6.5dB FS
f₂
-20
f₁
-30
-40
-50
2ND ORDER IMD
-60
-70
3RD ORDER IMD
-80
-90
-100
0
10 20 30 40 50 60
ANALOG INPUT FREQUENCY (MHz)
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
80
DIFFERENTIAL
74
68
SINGLE-ENDED
62
SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT FREQUENCY
60
58 ^DIFFERENTIAL
SINGLE-ENDED
56
54
TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT FREQUENCY
-50
-56
-62
SINGLE-ENDED
-68
56
52
-74 DIFFERENTIAL
50
1
10
100
ANALOG INPUT FREQUENCY (MHz)
50
1
10
100
ANALOG INPUT FREQUENCY (MHz)
-80
1
10
100
ANALOG INPUT FREQUENCY (MHz)
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