Automatic RF MESFET Amplifier
Drain-Current Controllers
Typical Operating Characteristics (continued)
(V GATEVSS = -5.5V; V AVDD = V DVDD = +5V, GATEV SS = AV SS = -5V, external V REFADC = +2.5V; external V REFDAC = +2.5V; C REF =
0.1μF; T A = T MIN to T MAX , unless otherwise noted.)
2.5018
DAC INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
AV DD = DV DD
2.52
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
2.0
ADC OFFSET ERROR
vs. ANALOG SUPPLY VOLTAGE
2.5016
2.5014
2.51
2.50
V REFADC
1.5
1.0
V REFDAC
2.5012
2.5010
2.49
2.48
0.5
0
4.750
4.875
5.000
5.125
5.250
-50
-25
0
25
50
75
100
125
4.750
4.875
5.000
5.125
5.250
4
SUPPLY VOLTAGE (V)
ADC OFFSET ERROR vs. TEMPERATURE
3.0
TEMPERATURE ( ° C)
ADC GAIN ERROR
vs. ANALOG SUPPLY VOLTAGE
4
AV DD (V)
ADC GAIN EROR vs. TEMPERATURE
3
2.5
3
2
2.0
1
2
1.5
0
1
0
1.0
0.5
0
-1
-2
-3
-50
-25
0
25
50
75
100
125
4.750
4.875
5.000
5.125
5.250
-50
-25
0
25
50
75
100
125
1.00
0.75
0.50
0.25
0
-0.25
-0.50
-0.75
-1.00
TEMPERATURE ( ° C)
INTERNAL TEMPERATURE SENSOR ERROR
vs. TEMPERATURE
AV DD (V)
0 TO 100mV V SENSE
TRANSIENT RESPONSE
MAX11014 toc26
V RCS1-
100mV/div
V PGAOUT1
200mV/div
GND
V FILT1
200mV/div
TEMPERATURE ( ° C)
0 TO 250mV V SENSE
TRANSIENT RESPONSE
MAX11014 toc27
V RCS1-
200mV/div
V PGAOUT1
500mV/div
GND
V FILT1
500mV/div
GND
-50
-25
0
25 50 75
TEMPERATURE ( ° C)
100
125
10ms/div
10ms/div
______________________________________________________________________________________
13
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