
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
VAVDD (V)
ERRORS
(%FS)
5.15
5.05
4.95
4.85
-0.006
-0.002
0.002
0.006
0.010
-0.010
4.75
5.25
fSAMPLE = 250ksps
TA = +25°C
VRDC = 4.096V
GAIN ERROR
GAIN ERROR MATCHING
GAIN ERROR AND GAIN ERROR
MATCHING vs. TEMPERATURE
MAX11044
toc15
TEMPERATURE (°C)
ERRORS
(%FS)
60
35
10
-15
-0.006
-0.002
0.002
0.006
0.010
-0.010
-40
85
fSAMPLE = 250ksps
VAVDD = 5.0V
VREFIO = 4.096V
GAIN ERROR
GAIN ERROR MATCHING
FFT PLOT (A-GRADE)
MAX11044
toc16
FREQUENCY (kHz)
MAGNITUDE
(dB)
100
75
50
25
-120
-100
-80
-60
-40
-20
0
-140
0125
fIN = 10kHz
fSAMPLE = 250ksps
TA = +25°C
VAVDD = 5.0V
SNR = 92.3dB
SINAD = 92.0dB
THD = -104dB
SFDR = 105.7dB
FFT PLOT (B-GRADE)
MAX11044
toc16a
FREQUENCY (kHz)
MAGNITUDE
(dB)
100
75
50
25
-120
-100
-80
-60
-40
-20
0
-140
0125
fIN = 10kHz
fSAMPLE = 250ksps
TA = +25°C
VAVDD = 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)
12.0
11.2
10.4
9.6
8.8
8.0
7.2
12.8
fIN1 = 9838Hz
fIN2 = 10235Hz
fSAMPLE = 250ksps
TA = +25°C
VAVDD = 5.0V
VRDC = 4.096V
VIN = -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)
60
35
10
-15
91
92
93
94
95
90
-40
85
fIN = 10kHz
fSAMPLE = 250ksps
TA = +25°C
VAVDD = 5.0V
VRDC = 4.096V
VIN = -0.025dB FROM FS
SNR
SINAD
Typical Operating Characteristics (continued)
(VAVDD = 5V, VDVDD = 3.3V, TA = +25°C, fSAMPLE = 250ksps, internal reference, unless otherwise noted.)
SNR AND SINAD vs. ANALOG SUPPLY
VOLTAGE (MAX1104_)
MAX11044
toc20
VAVDD (V)
SNR
AND
SINAD
(dB)
5.15
5.05
4.95
4.85
91.5
92.0
92.5
93.0
91.0
4.75
5.25
fIN = 10kHz
fSAMPLE = 250ksps
TA = +25°C
VRDC = 4.096V
VIN = -0.025dB FROM FS
SNR
SINAD
TOTAL HARMONIC DISTORTION
vs. TEMPERATURE (MAX1104_)
MAX11044
toc19
TEMPERATURE (°C)
THD
(dB)
60
35
10
-15
-106.0
-105.5
-105.0
-104.5
-104.0
-103.5
-106.5
-40
85
fIN = 10kHz
fSAMPLE = 250ksps
TA = +25°C
VAVDD = 5.0V
VRDC = 4.096V
VIN = -0.025dB FROM FS