妯欐簴鍕曪拷½錕界壒鎬?/div>
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(T
A
= +25擄C, unless otherwise noted.)
INTEGRAL NONLINEARITY
vs. DIGITAL CODE
MAX197-1
FFT PLOT
MAX197-2
EFFECTIVE NUMBER OF BITS
vs. INPUT FREQUENCY
F
SAMPLE
= 100kHz
EFFECTIVE NUMBER OF BITS
11.5
MAX197-3
0.250
INTEGRAL NONLINEARITY (LSB)
0.200
0.150
0
-20
AMPLITUDE (dB)
-40
-60
-80
-100
-120
f
tone
= 10kHz
f
sample
= 100kHz
12.0
0.100
0.050
0.000
-0.050
-0.100
-0.150
0
1000
2000
3000
4000
DIGITAL CODE
11.0
10.5
10.0
0
25
FREQUENCY (kHz)
50
1
10
INPUT FREQUENCY (kHz)
100
REFERENCE OUTPUT VOLTAGE (V
REF
)
vs. TEMPERATURE
MAX197-4
POWER-SUPPLY REJECTION RATIO
vs. TEMPERATURE
V
DD
= 5V 鹵0.25V
0.2
PSRR (LSB)
0
100Hz
-0.2
120Hz
MAX197-5
MAX197-7
4.100
0.4
4.095
V
REF
(V)
4.090
A
V
= 1.6384
REF
4.085
+2.5V
INTERNAL
REFERENCE
REFADJ
-0.4
4.080
-55 -35 -15
5 25 45 65 85 105 125
TEMPERATURE (擄C)
-0.6
-70 -50 -30 -10 10 30 50 70 90 110 130
TEMPERATURE (擄C)
CHANNEL-TO-CHANNEL
OFFSET-ERROR MATCHING vs. TEMPERATURE
CHANNEL-TO-CHANNEL
OFFSET-ERROR MATCHING (LSB)
MAX197-6
CHANNEL-TO-CHANNEL
GAIN-ERROR MATCHING vs. TEMPERATURE
0.33
CHANNEL-TO-CHANNEL
GAIN-ERROR MATCHING (LSB)
0.32
0.31
0.30
0.29
0.28
0.27
-70 -50 -30 -10 10 30 50 70 90 110 130
TEMPERATURE (擄C)
0.20
0.18
0.16
0.14
0.12
0.10
-70 -50 -30 -10 10 30 50 70 90 110 130
TEMPERATURE (擄C)
6
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