MAX1184 Datasheet, PDF (6/21 Pages) Maxim Integrated Products – Dual 10-Bit, 20Msps, +3V, Low-Power ADC with Internal Reference and Parallel Outputs

Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
Typical Operating Characteristics
(V_DD = +3V, OV_DD = +2.5V, V_REFIN = +2.048V, differential input at -0.5dB FS, f_CLK = 20MHz, C_L ≈ 10pF, T_A = +25°C, unless otherwise
noted.)
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
f_CLK = 20.0005678MHz
f_INA = 5.9742906MHz
CHA
-20 ^{fINB = 7.5343935MHz}
AINA = -0.525dB FS
-30
-40
-50
-60 _HD3
-70
HD2
-80
-90
-100
0
1 2 3 4 5 6 7 8 9 10
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHB (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
f_CLK = 20.0005678MHz
f_INA = 5.9742906MHz
CHB
-20 ^fINB ^{= 7.5243935MHz}
AINB = -0.462dB FS
-30
-40
-50
-60
HD3
-70
HD2
-80
-90
-100
0
1 2 3 4 5 6 7 8 9 10
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
f_CLK = 20.0005678MHz
f_INA = 7.5343935MHz
CHA
-20 ^fINB ^{= 11.9852035MHz}
AINA = -0.489dB FS
-30
-40
-50
-60
HD3
-70
HD2
-80
-90
-100
0
1 2 3 4 5 6 7 8 9 10
ANALOG INPUT FREQUENCY (MHz)
FFT PLOT CHB (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
f_CLK = 20.0005678MHz
f_INA = 7.5343935MHz
CHB
-20 ^fINB ^{= 11.9852035MHz}
AINB = -0.471dB FS
-30
-40
-50
-60
HD3
-70
HD2
-80
-90
-100
0
1 2 3 4 5 6 7 8 9 10
ANALOG INPUT FREQUENCY (MHz)
TWO-TONE IMD PLOT DIFFERENTIAL
INPUT, 8192-POINT DATA RECORD
0
-10
f_CLK = 20.0005678MHz
f_IN1 = 11.9852035MHz
-20 ^fIN2 ^{= 12.8934324MHz}
AIN = -6.5dB FS
f_IN1
-30 _{TWO-TONE ENVELOPE =}
-40 ^{-0.498dB FS}
-50
f_IN2
-60
-70
IMD2
IMD3
IMD3
-80
-90
-100
0
2 4 6 8 10 12 14 16 18 20
ANALOG INPUT FREQUENCY (MHz)
SIGNAL-TO-NOISE RATIO vs.
ANALOG INPUT FREQUENCY
61
CHB
60
59
CHA
58
57
56
1
10
100
ANALOG INPUT FREQUENCY (MHz)
SIGNAL-TO-NOISE + DISTORTION vs.
ANALOG INPUT FREQUECNY
61
60
CHB
59
CHA
58
57
56
1
10
100
ANALOG INPUT FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION vs.
ANALOG INPUT FREQUENCY
-63
-65
-67
CHB
-69
-71
-73
CHA
-75
-77
1
10
100
ANALOG INPUT FREQUENCY (MHz)
SPURIOUS-FREE DYNAMIC RANGE vs.
ANALOG INPUT FREQUENCY
80
76
CHA
72
68
CHB
64
60
1
10
100
ANALOG INPUT FREQUENCY (MHz)
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