Rainbow-electronics MAX1386 Manual do Utilizador descarregar pdf (Página 5)

MAX1385/MAX1386

Dual RF LDMOS Bias Controllers

with I

C/SPI Interface

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (continued)

(GATEV

= +5.5V for the MAX1385, GATEV

= +11V for the MAX1386, AV

= DV

= +5V, external V

REFADC

= +2.5V, external V

REF-

DAC

= +2.5V, C

REF

= 0.1µF, unless otherwise noted. T

= -40°C to +85°C, unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Capacitive Bypass at REF 270 nF

Power-Supply Rejection Ratio PSRR AV

= +5V ±5% 70 dB

EXTERNAL REFERENCE

REFADC Input Voltage Range V

REFADC

Limited code test 1.0 AV

REF

= 2.5V, f

SAMPLE

= 174ksps 60 80

REFADC Input Current I

REFADC

Acquisition/between conversions ±0.01 ±1

µA

REFDAC Input Voltage Range V

REFDAC

(Note 9) 0.5 2.5 V

REFDAC Input Current Static current when no DAC calibration 0.1 µA

GATE-DRIVER COARSE-DAC DC ACCURACY

Resolution N

CDAC

8 Bits

Integral Nonlinearity INL

CDAC

Measured at GATE; fine DAC set at full scale ±0.15 ±1 LSB

Differential Nonlinearity DNL

CDAC

Guaranteed monotonic ±0.05 ±0.5 LSB

GATE-DRIVER FINE-DAC DC ACCURACY

Resolution N

FDAC

10 Bits

Integral Nonlinearity INL

FDAC

Measured at GATE; coarse DAC set at full

scale

±0.25 ±4 LSB

Differential Nonlinearity DNL

FDAC

Guaranteed monotonic ±0.1 ±1 LSB

POWER SUPPLIES (Note 10)

Analog Supply Voltage AV

4.75 5.25 V

Digital Supply Voltage DV

2.7

+ 0.3

Gate-Drive Supply Voltage V

GATEVDD

4.75 11.00 V

Analog Supply Current I

AVDD

= 5V 3.2 4 mA

Digital Supply Current I

DVDD

= 2.7V to 5.25V 3.1 4.3 mA

GATEV

Supply Current I

GATEVDD

3 4.5 7 mA

AVDD

0.1 2

DVDD

0.1 2Shutdown Current (Note 11) I

VDDGATE

0.1 2

µA

1 2 3 4 5 6 7 8 9 10 ... 51 52

MAX1385/MAX1386 1
C/SPI Interface 1

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