MAX11008 Datasheet, PDF (9/67 Pages) Maxim Integrated Products – Dual RF LDMOS Bias Controller with Nonvolatile Memory

Dual RF LDMOS Bias Controller with
Nonvolatile Memory
Typical Operating Characteristics
(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.)
ANALOG SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.10
DV_DD = 5V
INT REF AND DACS TURNED ON
2.09
DIGITAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE
3.5
AV_DD = 5V
WD OSC TURNED ON
3.0
CURRENT-SENSE AMPLIFIER OUTPUT
ERROR vs. TEMPERATURE (G = 2)
0.2
0
2.5
-0.2
2.08
AFTER
CALIBRATION
2.0
-0.4
BEFORE
2.07
CALIBRATION
1.5
-0.6
2.06
4.7 4.8 4.9 5.0 5.1 5.2 5.3
AV_DD (V)
CURRENT-SENSE AMPLIFIER OUTPUT
ERROR vs. TEMPERATURE (G = 10)
0.4
0.2
0
-0.2
-0.4
AFTER
CALIBRATION
-0.6
BEFORE
CALIBRATION
1.0
2.70 3.22 3.74 4.26 4.78 5.30
DV_DD (V)
CURRENT-SENSE AMPLIFIER OUTPUT
ERROR vs. TEMPERATURE (G = 25)
0.3
0
-0.3
AFTER
CALIBRATION
-0.6
BEFORE
CALIBRATION
-0.8
-40 -10 20
50
80 110
TEMPERATURE (°C)
CURRENT-SENSE AMPLIFIER OUTPUT
ERROR vs. SENSE VOLTAGE (G = 2)
1.0
OUTPUT AT PGAOUT_
CMV = 32V
0.8
0.6
0.4
0.2
-0.8
-40 -10
20
50
80
110
TEMPERATURE (°C)
-0.9
-40 -10
20
50
80 110
TEMPERATURE (°C)
0
0
250 500 750 1000 1250
V_SENSE (mV)
CURRENT-SENSE AMPLIFIER OUTPUT
ERROR vs. SENSE VOLTAGE (G = 10)
1.0
OUTPUT AT PGAOUT_
CMV = 32V
0.8
0.6
0.4
0.2
CURRENT-SENSE AMPLIFIER OUTPUT
ERROR vs. SENSE VOLTAGE (G = 25)
5
OUTPUT AT PGAOUT_
CMV = 32V
4
3
2
1
CURRENT-SENSE AMPLIFIER
OUTPUT ERROR vs. CMV
0.30
V_SENSE = 75mV
0.25
G=2
0.20
0.15
G = 25
0.10
0.05
G = 10
0
0
50 100 150 200 250
V_SENSE (mV)
0
0
20
40
60
80 100
V_SENSE (mV)
0
5 10 15 20 25 30 35
COMMON-MODE VOLTAGE (V)
_______________________________________________________________________________________ 9