
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
9
Maxim Integrated
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056
THD vs. ANALOG SUPPLY VOLTAGE
(MAX1104_)
MAX11044
toc21
VAVDD (V)
THD
(dB)
5.15
5.05
4.95
4.85
-106
-105
-104
-103
-102
-107
4.75
5.25
fIN = 10kHz
fSAMPLE = 250ksps
TA = +25°C
VRDC = 4.096V
VIN = -0.025dB FROM FS
SIGNAL-TO-NOISE AND DISTORTION RATIO
vs. FREQUENCY (MAX1104_)
MAX11044
toc22
FREQUENCY (kHz)
SINAD
(dB)
10
1
84
86
88
90
92
94
82
0.1
100
fSAMPLE = 250ksps
TA = +25°C
VAVDD = 5.0V
VRDC = 4.096V
VIN = -0.025dB from FS
THD vs. INPUT FREQUENCY
(MAX1104_)
MAX11044
toc23
FREQUENCY (kHz)
THD
(dB)
10
1
-105
-100
-95
-90
-85
-110
0.1
100
fSAMPLE = 250ksps
TA = +25°C
VAVDD = 5.0V
VRDC = 4.096V
VIN = -0.025dB from FS
Typical Operating Characteristics (continued)
(VAVDD = 5V, VDVDD = 3.3V, TA = +25°C, fSAMPLE = 250ksps, internal reference, unless otherwise noted.)
OUTPUT NOISE HISTOGRAM WITH INPUT
CONNECTED TO AGNDS (MAX1104_)
MAX11044
toc25
OUTPUT CODE (DECIMAL)
NUMBER
OF
OCCURANCES
50,000
100,000
150,000
200,000
0
32765
32766
32767
32768
32769
32770
32771
VCH_ = 0V
VAVDD = 5.0V
VRDC = 4.096V
fSAMPLE = 250ksps
CONVERSION TIME vs. TEMPERATURE
MAX11044
toc27
TEMPERATURE (°C)
CONVERSION
TIME
(μs)
60
35
-15
10
2.93
2.94
2.95
2.96
2.98
2.97
2.99
3.00
2.92
-40
85
VAVDD = 5.0V
CROSSTALK vs. FREQUENCY
MAX11044
toc24
FREQUENCY (kHz)
CROSSTALK
(dB)
10
1
-130
-120
-110
-100
-90
-140
0.1
100
fIN = 60Hz
fSAMPLE = 250ksps
TA = +25°C
VAVDD = 5.0V
VRDC = 4.096V
VIN = -0.025dB FROM FS
INACTIVE CHANNEL AT AGNDS
CONVERSION TIME
vs. ANALOG SUPPLY VOLATAGE
MAX11044
toc26
VAVDD (V)
CONVERSION
TIME
(μs)
5.15
5.05
4.85
4.95
2.93
2.94
2.95
2.96
2.98
2.97
2.99
3.00
2.92
4.75
5.25
TA = +25°C