Dual RF LDMOS Bias Controller with
Nonvolatile Memory
Typical Operating Characteristics (continued)
(AV DD = DV DD = 5V, external V REFADC = 2.5V, external V REFDAC = 2.5V, V CS_- = V CS_+ = 32V, C REF = 0.1μF, T A = +25°C, unless oth-
erwise noted.)
ADC INTEGRAL NONLINEARITY
ADC DIFFERENTIAL NONLINEARITY
1.00
0.75
0.50
0.25
0
-0.25
-0.50
-0.75
-1.00
vs. OUTPUT CODE
1.00
0.75
0.50
0.25
0
-0.25
-0.50
-0.75
-1.00
vs. OUTPUT CODE
80
75
70
65
60
ADC SINAD vs. FREQUENCY
0
1024
2048
3072
4096
0
1024
2048
3072
4096
0.1
1
10
100
1000
OUTPUT CODE
ADC SFDR vs. FREQUENCY
OUTPUT CODE
DIGITAL SUPPLY CURRENT
vs. SAMPLING RATE
FREQUENCY (kHz)
ADC INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
100
90
8
7
AV DD = DV DD = 5V
2.5026
2.5024
AV DD = DV DD
80
70
60
6
5
4
2.5022
2.5020
50
3
2.5018
0.1
1
10
100
1000
0.1
1
10
100
1000
4.750
4.875
5.000
5.125
5.250
FREQUENCY (kHz)
SAMPLING RATE (ksps)
SUPPLY VOLTAGE (V)
______________________________________________________________________________________
11
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