Datasheet
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
8
Maxim Integrated
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056
GAIN ERROR AND GAIN ERROR
MATCHING vs. SUPPLY VOLTAGE
MAX11044 toc14
V
AVDD
(V)
ERRORS (%FS)
5.155.054.954.85
-0.006
-0.002
0.002
0.006
0.010
-0.010
4.75 5.25
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
GAIN ERROR
GAIN ERROR MATCHING
GAIN ERROR AND GAIN ERROR
MATCHING vs. TEMPERATURE
MAX11044 toc15
TEMPERATURE (°C)
ERRORS (%FS)
603510-15
-0.006
-0.002
0.002
0.006
0.010
-0.010
-40 85
f
SAMPLE
= 250ksps
V
AVDD
= 5.0V
V
REFIO
= 4.096V
GAIN ERROR
GAIN ERROR MATCHING
FFT PLOT (A-GRADE)
MAX11044 toc16
FREQUENCY (kHz)
MAGNITUDE (dB)
100755025
-120
-100
-80
-60
-40
-20
0
-140
0125
f
IN
= 10kHz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
AVDD
= 5.0V
SNR = 92.3dB
SINAD = 92.0dB
THD = -104dB
SFDR = 105.7dB
FFT PLOT (B-GRADE)
MAX11044 toc16a
FREQUENCY (kHz)
MAGNITUDE (dB)
100755025
-120
-100
-80
-60
-40
-20
0
-140
0125
f
IN
= 10kHz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
AVDD
= 5.0V
SNR = 92.3dB
SINAD = 88.8dB
THD = -91.3dB
SFDR = 91.4dB
TWO-TONE IMD PLOT (MAX1104_)
MAX11044 toc17
FREQUENCY (kHz)
MAGNITUDE (dB)
12.011.210.49.68.88.07.2 12.8
f
IN1
= 9838Hz
f
IN2
= 10235Hz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
AVDD
= 5.0V
V
RDC
= 4.096V
V
IN
= -0.01dBFS
-120
-100
-80
-60
-40
-20
0
-140
SIGNAL-TO-NOISE RATIO AND
SIGNAL-TO-NOISE AND DISTORTION
RATIO vs. TEMPERATURE (MAX1104_)
MAX11044 toc18
TEMPERATURE (°C)
SNR AND SINAD (dB)
603510-15
91
92
93
94
95
90
-40 85
f
IN
= 10kHz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
AVDD
= 5.0V
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS
SNR
SINAD
Typical Operating Characteristics (continued)
(V
AVDD
= 5V, V
DVDD
= 3.3V, T
A
= +25°C, f
SAMPLE
= 250ksps, internal reference, unless otherwise noted.)
SNR AND SINAD vs. ANALOG SUPPLY
VOLTAGE (MAX1104_)
MAX11044 toc20
V
AVDD
(V)
SNR AND SINAD (dB)
5.155.054.954.85
91.5
92.0
92.5
93.0
91.0
4.75 5.25
f
IN
= 10kHz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS
SNR
SINAD
TOTAL HARMONIC DISTORTION
vs. TEMPERATURE (MAX1104_)
MAX11044 toc19
TEMPERATURE (°C)
THD (dB)
603510-15
-106.0
-105.5
-105.0
-104.5
-104.0
-103.5
-106.5
-40 85
f
IN
= 10kHz
f
SAMPLE
= 250ksps
T
A
= +25°C
V
AVDD
= 5.0V
V
RDC
= 4.096V
V
IN
= -0.025dB FROM FS