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MAX1078ETC-T Просмотр технического описания (PDF) - Maxim Integrated

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MAX1078ETC-T Datasheet PDF : 18 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
1.8Msps, Single-Supply, Low-Power, True-
Differential, 10-Bit ADCs with Internal Reference
Typical Operating Characteristics (continued)
(VDD = +5V, VL = VDD, fSCLK = 28.8MHz, fSAMPLE = 1.8Msps, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA =
+25°C.)
DYNAMIC PERFORMANCE
vs. INPUT FREQUENCY (MAX1078)
62.00
THD vs. INPUT FREQUENCY
-80
SFDR vs. INPUT FREQUENCY
90
-82
MAX1076
MAX1078
61.75
-84
88
-86
SNR
61.50
-88
86
-90
61.25
SINAD
-92
MAX1078
-94
84
MAX1076
61.00
100
200
300
400
500
ANALOG FREQUENCY (kHz)
-96
100
200
300
400
500
ANALOG INPUT FREQUENCY (kHz)
82
100
200
300
400
500
ANALOG INPUT FREQUENCY (kHz)
FFT PLOT (MAX1076)
0
fIN = 500kHz
-20 SINAD = 61.5dB
SNR = 61.4dB
THD = -88.5dB
-40 SFDR = 87.0dB
-60
-80
-100
-120
-140
0
150 300 450 600 750 900
ANALOG FREQUENCY (kHz)
FFT PLOT (MAX1078)
0
fIN = 500kHz
-20 SINAD = 61.4dB
SNR = 61.5dB
THD = -93.8dB
-40 SFDR = 84.5dB
-60
-80
-100
-120
-140
0
150 300 450 600 750 900
ANALOG FREQUENCY (kHz)
TOTAL HARMONIC DISTORTION
vs. SOURCE IMPEDANCE
-50
-60
fIN = 500kHz
-70
-80
-90
fIN = 100kHz
-100
10
100
1000
SOURCE IMPEDANCE (Ω)
TWO-TONE IMD PLOT (MAX1076)
0
-20
-40
fIN1
-60
fSAMPLE = 2Msps
fIN1 = 250.039kHz
fIN2 = 300.059kHz
IMD = -81.9dB
fIN2
-80
-100
-120
-140
0
200 400 600 800 1000
ANALOG FREQUENCY (kHz)
TWO-TONE IMD PLOT (MAX1078)
0
-20
-40
fIN1
-60
fSAMPLE = 2Msps
fIN1 = 250.039kHz
fIN2 = 300.059kHz
IMD = 82.1dB
fIN2
-80
-100
-120
-140
0
200 400 600 800 1000
ANALOG FREQUENCY (kHz)
VDD/VL FULL POWER-DOWN SUPPLY
CURRENT vs. TEMPERATURE
1.0
0.8
VDD, NO SCLK
0.6
VDD, fSCLK = 28.8MHz
0.4
VL, NO SCLK
0.2
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
6 _______________________________________________________________________________________

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