Rainbow Electronics MAX1386 - Manual (Page 3)

MAX1385/MAX1386
Dual RF LDMOS Bias Controllers
with I 2 C/SPI Interface
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ELECTRICAL 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 REF-
DAC = +2.5V, C REF = 0.1µF, unless otherwise noted. T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Av PGA = 2 900
Av PGA = 10 720 Sense-Amplifier Bandwidth
Av PGA = 25 290
kHz
LDMOS GATE DRIVER (GAIN = 2 and 4)
I GATE = ±1mA 0.75
GATEV DD
- 0.75
Output Gate-Drive Voltage Range V GATE
I
GATE
= ±10mA 1
GATEV DD
- 1
V
Output Impedance R GATE Measured at DC 0.1 Ω
V GATE Settling Time t GATE
Settles to within ±0.5% of final value;
R
SERIES = 50Ω, C GATE = 15µF
10 ms
No series resistance, R SERIES = 0Ω 0 10
Output Capacitive Load (Note 1) C GATE
R SERIES = 50Ω 0 25,000
nF
V GATE Noise RMS noise; 1kHz - 1MHz 250 nV/√Hz
Maximum Power-On Transient ±100 mV
Output Short-Circuit Current Limit I SC 1s, sinking or sourcing ±25 mA
MAX1385, LOCODE = 128, HICODE = 180 ±6 ±20 Total Unadjusted Error
No Autocalibration and Offset
Removal (Note 2)
TUE
MAX1386, LOCODE = 128, HICODE = 180 ±12 ±40
mV
MAX1385, LOCODE = 128, HICODE = 180 ±1 ±8 Total Adjusted Error
With Autocalibration and Offset
Removal
TUE
MAX1386, LOCODE = 128, HICODE = 180 ±2 ±16
mV
MAX1385, V GATE > 1V ±15
Drift
MAX1386, V GATE > 1V ±30
µV/°C
Clamp to Zero Delay 1 µs
Output Safe Switch On-
Resistance
R OPSW GATE_ clamped to AGND (Note 3) 500 Ω
MAX1385 300
Amplifier Bandwidth
MAX1386 150
kHz
Amplifier Slew Rate 0.375 V/µs
MONITOR ADC DC ACCURACY
Resolution N ADC 12 Bits
Differential Nonlinearity DNL ADC ±0.5 ±2 LSB
Integral Nonlinearity INL
ADC
(Note 4) ±0.6 ±2 LSB
Offset Error ±2 ±4 LSB
Gain Error (Note 5) ±2 ±4 LSB
Gain Temperature Coefficient ±0.4 ppm/°C
Offset Temperature Coefficient ±0.4 ppm/°C