Rainbow-electronics MAX1181 Bedienungsanleitung Seite 7

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Seitenansicht 6
MAX1181
Dual 10-Bit, 80Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
_______________________________________________________________________________________ 7
1 10 100 1000
SMALL-SIGNAL INPUT BANDWIDTH vs.
ANALOG INPUT FREQUENCY
(SINGLE-ENDED)
MAX1181 toc13
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
6
-8
-6
-2
0
2
4
-4
V
IN
= 100mVp-p
45
50
60
55
65
SIGNAL-TO-NOISE RATIO vs.
INPUT POWER (f
IN
= 20MHz)
MAX1181 toc14
INPUT POWER (dB FS)
SNR (dB)
-9 -6 -5-8 -7 -4 -3 -2 -1 0
SIGNAL-TO-NOISE + DISTORTION vs.
INPUT POWER (f
IN
= 20MHz)
MAX1181 toc15
INPUT POWER (dB FS)
SINAD (dB)
-9 -6 -5-8 -7 -4 -3 -2 -1 0
50
52
56
54
58
60
TOTAL HARMONIC DISTORTION
vs. INPUT POWER (f
IN
= 20MHz)
MAX1181 toc16
INPUT POWER (dB FS)
THD (dB)
-9 -6 -5-8 -7 -4 -3 -2 -1 0
-80
-76
-68
-72
-64
-60
60
64
68
72
76
80
-9 -6 -5-8 -7 -4 -3 -2 -1 0
SPURIOUS-FREE DYNAMIC RANGE
vs. INPUT POWER (f
IN
= 20MHz)
MAX1181 toc17
INPUT POWER (dB FS)
SFDR (dB)
-1.0
-0.6
-0.8
-0.2
-0.4
0.2
0
0.4
0.8
0.6
1.0
0 256 384128 512 640 768 896 1024
INTEGRAL NONLINEARITY
(BEST-STRAIGHT-LINE FIT)
MAX1181 toc18
DIGITAL OUTPUT CODE
INL (LSB)
-1.0
-0.6
-0.8
-0.2
-0.4
0.2
0
0.4
0.8
0.6
1.0
0 256 384128 512 640 768 896 1024
DIFFERENTIAL NONLINEARITY
MAX1181 toc19
DIGITAL OUTPUT CODE
DNL (LSB)
-2
0
-1
2
1
3
4
-40 10-15 35 60 85
GAIN ERROR vs. TEMPERATURE,
EXTERNAL REFERENCE (V
REFIN
= +2.048V)
MAX1181 toc20
TEMPERATURE (°C)
GAIN ERROR (LSB)
CHA
CHB
-5
-3
1
-1
3
5
-40 10-15 35 60 85
OFFSET ERROR vs. TEMPERATURE,
EXTERNAL REFERENCE (V
REFIN
= +2.048V)
MAX11811 toc21
TEMPERATURE (°C)
OFFSET ERROR (LSB)
CHA
CHB
Typical Operating Characteristics (continued)
(V
DD
= +3V, OV
DD
= +2.5V, internal reference, differential input at -0.5dB FS, f
CLK
= 80.0005678MHz, C
L
10pF. T
A
= +25°C,
unless otherwise noted.)
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