Datasheet

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
V
AVDD
(V)
THD (dB)
5.155.054.954.85
-106
-105
-104
-103
-102
-107
4.75 5.25
f
IN
= 10kHz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS
SIGNAL-TO-NOISE AND DISTORTION RATIO
vs. FREQUENCY (MAX1104_)
MAX11044 toc22
FREQUENCY (kHz)
SINAD (dB)
101
84
86
88
90
92
94
82
0.1 100
f
SAMPLE
= 250ksps
T
A
= +25°C
V
AVDD
= 5.0V
V
RDC
= 4.096V
V
IN
= -0.025dB from FS
THD vs. INPUT FREQUENCY
(MAX1104_)
MAX11044 toc23
FREQUENCY (kHz)
THD (dB)
101
-105
-100
-95
-90
-85
-110
0.1 100
f
SAMPLE
= 250ksps
T
A
= +25°C
V
AVDD
= 5.0V
V
RDC
= 4.096V
V
IN
= -0.025dB from FS
Typical Operating Characteristics (continued)
(V
AVDD
= 5V, V
DVDD
= 3.3V, T
A
= +25°C, f
SAMPLE
= 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
V
CH_
= 0V
V
AVDD
= 5.0V
V
RDC
= 4.096V
f
SAMPLE
= 250ksps
CONVERSION TIME vs. TEMPERATURE
MAX11044 toc27
TEMPERATURE (°C)
CONVERSION TIME (μs)
6035-15 10
2.93
2.94
2.95
2.96
2.98
2.97
2.99
3.00
2.92
-40 85
V
AVDD
= 5.0V
CROSSTALK vs. FREQUENCY
MAX11044 toc24
FREQUENCY (kHz)
CROSSTALK (dB)
101
-130
-120
-110
-100
-90
-140
0.1 100
f
IN
= 60Hz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
AVDD
= 5.0V
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS
INACTIVE CHANNEL AT AGNDS
CONVERSION TIME
vs. ANALOG SUPPLY VOLATAGE
MAX11044 toc26
V
AVDD
(V)
CONVERSION TIME (μs)
5.155.054.85 4.95
2.93
2.94
2.95
2.96
2.98
2.97
2.99
3.00
2.92
4.75 5.25
T
A
= +25°C