Rainbow Electronics MAX1386 - Manual (Page 12)

MAX1385/MAX1386
Dual RF LDMOS Bias Controllers
with I
2 C/SPI Interface
12 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(GATEV DD = +5.5V for the MAX1385, GATEV DD = +11V for the MAX1386, AV DD = DV DD = +5V, external V REFADC = +2.5V, external
V
REFDAC
= +2.5V, C
REF
= 0.1µF, T
A
= +25°C, unless otherwise noted.)
PGAOUT_ 0mV TO 250mV
V SENSE TRANSIENT RESPONSE
MAX1385/86 toc10
V SENSE
PGAOUT_
10µs/div
100mV/div
1V/div
PGAOUT_ PEDESTAL ERROR
DURING CALIBRATION
MAX1385/86 toc11
BUSY
PGAOUT_
20µs/div
2V/div
10mV/div
GATE_ OFFSET COMPENSATED
ERROR vs. TEMPERATURE
MAX1385/86 toc12
TEMPERATURE (°C)
ERROR VOLTAGE (mV)
80 65 -25 -10 5 35 20 50
-7
-6
-5
-4
-3
-2
-1
0
-8
-40
L_ERROR, AUTOCALIBRATION
H_ERROR, AUTOCALIBRATION
L_ERROR, NO AUTOCALIBRATION
H_ERROR, NO AUTOCALIBRATION
V GATE vs. POWER-ON TIME
MAX1385/86 toc13
V GATE_
400µs/div
50mV/div
CHARGE CURRENT vs. V GATE
MAX1385/86 toc15
V
GATE_
1ms/div
I GATE_
2V/div
20mA/div
GATE_ SETTLING TIME
vs. LOAD CAPACITANCE
MAX1385/86 toc14
LOAD CAPACITANCE (µF)
SETTLING TIME (ms)
10 1
2
4
6
8
10
12
14
16
0
0.1 100
R SERIES = 50Ω
GATE_ VOLTAGE SWING
vs. LOAD RESISTANCE
MAX1385/86 toc16
LOAD RESISTANCE (Ω)
GATE_ VOLTAGE SWING (V)
10,000 1000 100
1
2
3
4
5
6
7
8
9
10
0
10 100,000
GLITCH ENERGY
MAX1385/86 toc17
1µs/div
10mV/div