Rainbow-electronics MAX1386 Manual do Utilizador descarregar pdf (Página 3)

MAX1385/MAX1386

Dual RF LDMOS Bias Controllers

with I

C/SPI Interface

_______________________________________________________________________________________ 3

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

PGA

= 2 900

PGA

= 10 720

Sense-Amplifier Bandwidth

PGA

= 25 290

kHz

LDMOS GATE DRIVER (GAIN = 2 and 4)

GATE

= ±1mA 0.75

GATEV

- 0.75

Output Gate-Drive Voltage Range V

GATE

= ±10mA 1

GATEV

- 1

Output Impedance R

GATE

Measured at DC 0.1 Ω

GATE

Settling Time t

GATE

Settles to within ±0.5% of final value;

SERIES

= 50Ω, C

GATE

= 15µF

10 ms

No series resistance, R

SERIES

= 0Ω 010

Output Capacitive Load (Note 1) C

GATE

SERIES

= 50Ω 0 25,000

GATE

Noise RMS noise; 1kHz - 1MHz 250 nV/√Hz

Maximum Power-On Transient ±100 mV

Output Short-Circuit Current Limit I

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

MAX1385, LOCODE = 128, HICODE = 180 ±1 ±8

Total Adjusted Error

With Autocalibration and Offset

Removal

TUE

MAX1386, LOCODE = 128, HICODE = 180 ±2 ±16

MAX1385, V

GATE

> 1V ±15

Drift

MAX1386, V

GATE

> 1V ±30

µV/°C

Clamp to Zero Delay 1µs

Output Safe Switch On-

Resistance

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

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

MAX1385/MAX1386 1
C/SPI Interface 1

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