MAX1446 Datasheet, PDF (5/16 Pages) Maxim Integrated Products – 10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference

10-Bit, 60Msps, 3.0V, Low-Power
ADC with Internal Reference
Typical Operating Characteristics
(V_DD = 3.0V, OV_DD = 2.7V, internal reference, differential input at -0.5dBFS, f_CLK = 62.35MHz, C_L ≈ 10pF, T_A = +25°C,
unless otherwise noted.)
FFT PLOT
f_IN = 7.5MHz, 8192-POINT FFT,
DIFFERENTIAL INPUT
0
SFDR = 72.2dB
-10
SNR = 60.1dB
THD = -71.5dB
-20
SINAD = 59.8dB
-30
-40
-50
-60
3RD HARMONIC
-70
2ND HARMONIC
-80
-90
-100
0
5 10 15 20 25 30 35
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(f_IN = 26.8MHz, 8192-POINT FFT,
DIFFERENTIAL INPUT)
0
SINAD = 59.0dB
-10
SNR = 59.4dB
THD = -70.5dBc
-20
SFDR = 72.9dBc
-30
-40
-50
2ND HARMONIC
-60
3RD HARMONIC
-70
-80
-90
-100
0
5 10 15 20 25 30 35
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(f_IN = 20MHz, 8192-POINT FFT,
SINGLE-ENDED INPUT)
0
SINAD = 59.2dB
-10
SNR = 59.5dB
THD = -70.7dBc
-20
SFDR = 71.1dBc
-30
-40
-50
3RD HARMONIC
-60
-70
2ND HARMONIC
-80
-90
-100
0
5 10 15 20 25 30 35
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(f_IN = 7.5MHz, 8192-POINT FFT,
DIFFERENTIAL INPUT)
0
SFDR = 72.2dBc
-10
SNR = 60.1dB
THD = -71.5dBc
-20
SINAD = 59.8dB
-30
-40
-50
-60
3RD HARMONIC
-70
2ND HARMONIC
-80
-90
-100
0
0
-10
-20
-30
5 10 15 20 25 30 35
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(f_IN = 50MHz, 8192-POINT FFT,
DIFFERENTIAL INPUT)
SFDR = 70dBc
SNR = 59.1dB
THD = -67.1dBc
SINAD = 58.5dB
-40
-50
3RD HARMONIC
-60
2ND HARMONIC
-70
-80
-90
-100
0
5 10 15 20 25 30 35
ANALOG INPUT FREQUENCY (MHz)
TWO-TONE INTERMODULATION
(8192-POINT IMD,
DIFFERENTIAL INPUT)
0 _{f1 = 19MHz AT -6.5dBFS}
-10 f2 = 21MHz AT -6.5dBFS
3RD IMD = -76dBc
-20
-30
-40
-50
-60
-70
-80
-90
-100
0
5 10 15 20 25 30 35
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(f_IN = 20MHz, 8192-POINT FFT,
DIFFERENTIAL INPUT)
0
SINAD = 59.3dB
-10
SNR = 59.6dB
THD = -70.7dBc
-20
SFDR = 72.2dBc
-30
-40
-50
-60 ^{3RD HARMONIC}
-70
2ND HARMONIC
-80
-90
-100
0
0
-10
-20
-30
5 10 15 20 25 30 35
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT
(f_IN = 7.5MHz, 8192-POINT FFT,
SINGLE-ENDED INPUT)
SINAD = 59.5dB
SNR = 59.7dB
THD = -73.0dBc
SFDR = 73.6dBc
-40
-50
-60
3RD HARMONIC
-70
2ND HARMONIC
-80
-90
-100
0
5 10 15 20 25 30 35
ANALOG INPUT FREQUENCY (MHz)
SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
80
DIFFERENTIAL
75
70
65
SINGLE ENDED
60
55
50
1
10
100
ANALOG INPUT FREQUENCY (MHz)
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