MAX146ACAP Просмотр технического описания (PDF) - Maxim Integrated
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MAX146ACAP Datasheet PDF : 24 Pages
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+2.7V, Low-Power, 8-Channel,
Serial 12-Bit ADCs
____________________________Typical Operating Characteristics (continued)
(VDD = 3.0V, VREF = 2.500V, fSCLK = 2.0MHz, CLOAD = 20pF, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.00
RL = ∞
CODE = 101010100000
1.75
CLOAD = 50pF
1.50 MAX146
1.25
1.00
CLOAD = 20pF
0.75
MAX147
0.50
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
1.3
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
3.5
FULL POWER-DOWN
3.0
2.5
2.0
1.5
1.0
0.5
0
2.25 2.75 3.25 3.75 4.25 4.75 5.25
VDD (V)
SHUTDOWN CURRENT
vs. TEMPERATURE
2.0
2.5020
MAX146
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
2.5015
2.5010
2.5005
2.5000
2.4995
2.4990
2.25 2.75 3.25 3.75 4.25 4.75 5.25
VDD (V)
MAX146
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
2.501
1.2
MAX146
1.6
1.1
1.2
2.500
2.499
2.498
VDD = 3.6V
VDD = 2.7V
1.0
MAX147
0.9
RLOAD = ∞
CODE = 101010100000
0.8
-60 -20
20
60
100 140
TEMPERATURE (°C)
0.8
0.4
0
-60 -20
20
60 100 140
TEMPERATURE (°C)
2.497
2.496
2.495
2.494
-60
-20
20
60 100 140
TEMPERATURE (°C)
FFT PLOT
20
VDD = 2.7V
0
fIN = 10kHz
fSAMPLE = 133kHz
-20
-40
EFFECTIVE NUMBER OF BITS
vs. FREQUENCY
12.0
VDD = 2.7V
11.8
11.6
-60
11.4
-80
11.2
-100
-120
0
10 20 30 40 50 60 70
FREQUENCY (kHz)
11.0
1
10
100
FREQUENCY (kHz)
6 _______________________________________________________________________________________
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