Datasheet
MAX11047–MAX11049/MAX11057–MAX11059
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
AVDD
= 5V, V
DVDD
= 3.3V, T
A
= +25°C, f
SAMPLE
= 250ksps, internal reference, unless otherwise noted.)
SIGNAL-TO-NOISE AND DISTORTION RATIO
(SINAD) vs. FREQUENCY FOR MAX1104_
MAX11047 toc22
FREQUENCY (kHz)
SINAD (dB)
10.01.0
89
90
91
92
93
94
88
0.1 100.0
V
AVDD
= 5.0V
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS
THD vs. INPUT FREQUENCY
FOR MAX1104_
MAX11047 toc23
FREQUENCY (kHz)
THD (dB)
10.01.0
-115
-110
-105
-100
-95
-90
-85
-120
0.1 100.0
V
AVDD
= 5.0V
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS
CROSSTALK vs. FREQUENCY
MAX11047 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 GND
OUTPUT NOISE HISTOGRAM WITH INPUT
CONNECTED TO 2.5V FOR MAX1104_
MAX11047 toc25
OUTPUT CODE (DECIMAL)
NUMBER OF OCCURENCES
4000
8000
12000
16000
20000
24000
0
32768 32769 32770 32771 32772 32773 32774
V
CHX
= 2.500270V
V
AVDD
= 5.0V
f
SAMPLE
= 250ksps
T
A
= +25°C
CONVERSION TIME vs. ANALOG
SUPPLY VOLTAGE
MAX11047 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
CONVERSION TIME vs. TEMPERATURE
MAX11047 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
SNR AND SINAD vs. ANALOG SUPPLY
VOLTAGE FOR MAX1104_
MAX11047 toc20
f
IN
= 10kHz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS
SNR AND SINAD (dB)
91.5
92.0
92.5
93.0
91.0
V
AVDD
(V)
5.155.054.954.854.75 5.25
SNR
SINAD
THD vs. ANALOG SUPPLY VOLTAGE
FOR MAX1104_
MAX11047 toc21
f
IN
= 10kHz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS
V
AVDD
(V)
5.155.054.954.854.75 5.25
THD (dB)
-109.5
-109.0
-108.5
-108.0
-110.0