MAX1185(2001) View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX1185
(Rev.:2001)
(Rev.:2001)
Maxim Integrated
MAX1185 Datasheet PDF : 20 Pages
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Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
Typical Operating Characteristics
(VDD = +3V, OVDD = +2.5V, VREFIN = +2.048V, differential input at -0.5dB FS, fCLK = 20.00057MHz, CL ≈ 10pF, TA = +25°C,
unless otherwise noted.)
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
fCLK = 20.0005678MHz
fINA = 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
fCLK = 20.0005678MHz
fINA = 7.5343935MHz
CHB
-20 fINB = 11.9852035MHz
AINA = -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)
SIGNAL-TO-NOISE PLUS DISTORTION vs.
ANALOG INPUT FREQUECNY
62
CHB
60
58
CHA
56
FFT PLOT CHB (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
fCLK = 20.0005678MHz
fINA = 5.9742906MHz
CHB
-20 fINB = 7.5243935MHz
AINA = -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)
TWO-TONE IMD PLOT (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
fCLK = 20.0005678MHz
fIN1 = 11.9852035MHz
-20 fIN2 = 12.8934324MHz
AIN = -6.5dB FS
fIN1
-30 TWO-TONE ENVELOPE =
-40 -0.498dB FS
-50
fIN2
-60
-70
IMD2
IMD3
IMD3
-80
-90
-100
0
1 2 3 4 5 6 7 8 9 10
ANALOG INPUT FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION vs.
ANALOG INPUT FREQUENCY
-65
CHB
-68
-71
CHA
-74
-77
FFT PLOT CHA (DIFFERENTIAL INPUT,
8192-POINT DATA RECORD)
0
-10
fCLK = 20.0005678MHz
fINA = 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)
SIGNAL-TO-NOISE RATIO vs.
ANALOG INPUT FREQUENCY
61
CHB
60
59
CHA
58
57
56
55
1
10
100
ANALOG INPUT FREQUENCY (MHz)
SPURIOUS-FREE DYNAMIC RANGE vs.
ANALOG INPUT FREQUENCY
80
76
CHB
72
68
CHA
64
54
1
10
100
ANALOG INPUT FREQUENCY (MHz)
-80
1
10
100
ANALOG INPUT FREQUENCY (MHz)
60
1
10
100
ANALOG INPUT FREQUENCY (MHz)
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