Rainbow-electronics MAX1386 Manual do Utilizador descarregar pdf (Página 11)

MAX1385/MAX1386

Dual RF LDMOS Bias Controllers

with I

2

C/SPI Interface

______________________________________________________________________________________ 11

Typical Operating Characteristics

(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.)

3.0

3.3

3.2

3.1

3.4

3.5

3.6

3.7

3.8

3.9

4.0

4.7 4.94.8 5.0 5.1 5.2 5.3

AV

DD

SUPPLY CURRENT

vs. AV

DD

VOLTAGE

MAX1385/86 toc01

AV

DD

(V)

I

AVDD

(mA)

Av

PGA

= 2

CMV = 12V

V

SENSE

= 100mV

T

A

= +85°C

T

A

= +25°C

T

A

= -40°C

DV

DD

SUPPLY CURRENT vs. DV

DD

VOLTAGE

MAX1385/86 toc02

DV

DD

(V)

I

DVDD

(mA)

5.24.74.23.73.2

1.25

1.50

1.75

2.00

2.25

2.50

2.75

3.00

3.25

3.50

3.75

4.00

1.00

2.7

Av

PGA

= 2

CMV = 12V

V

SENSE

= 100mV

T

A

= +25°C

T

A

= +85°C

T

A

= -40°C

GATEV

DD

SUPPLY CURRENT

vs. GATEV

DD

VOLTAGE

MAX1385/86 toc03

GATEV

DD

(V)

I

GATEVDD

(mA)

11108 96 75

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5.0

4.0

412

Av

PGA

= 2

CMV = 12V

V

SENSE

= 100mV

T

A

= +85°C

T

A

= +25°C

T

A

= -40°C

TOTAL PGAOUT_ ERROR

vs. TEMPERATURE

MAX1385/86 toc04

TEMPERATURE (°C)

PGAOUT_ ERROR (%)

806535 50-10 5 20-25

-0.125

-0.100

-0.075

-0.050

-0.025

0

0.025

0.050

0.075

0.100

0.125

0.150

-0.150

-40

Av

PGA

= 2

CMV = 12V

V

SENSE

= 100mV

ACQUISITION

TRACKING

TOTAL PGAOUT_ ERROR vs. V

SENSE

MAX1385/86 toc05

V

SENSE

(mV)

PGAOUT_ ERROR (%)

1000750500250

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0

0 1250

Av

PGA

= 2

CMV = 12V

TOTAL PGAOUT_ ERROR vs. V

SENSE

MAX1385/86 toc06

V

SENSE

(mV)

PGAOUT_ ERROR (%)

80604020

-3.5

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0

0.5

-4.0

0 100

Av

PGA

= 25

CMV = 12V

TOTAL PGAOUT_ ERROR

vs. COMMON-MODE VOLTAGE

MAX1385/86 toc07

COMMON-MODE VOLTAGE (V)

PGAOUT_ ERROR (%)

3025201510

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.10

0

5

Av

PGA

= 2

V

SENSE

= 100mV

PGAOUT_ OFFSET VOLTAGE

vs. TEMPERATURE

MAX1385/86 toc08

TEMPERATURE (°C)

OFFSET VOLTAGE (μV)

806535 50-10 5 20-25

-350

-300

-250

-200

-150

-100

-50

0

50

100

150

200

-400

-40

Av

PGA

= 2

CMV = 12V

V

SENSE

= 100mV

ACQUISITION

TRACKING

V

SENSE

TRANSIENT RESPONSE

MAX1385/86 toc09

100mV/div

1V/div

PGAOUT_

V

SENSE

10μs/div

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 51 52

MAX1385/MAX1386 1
C/SPI Interface 1

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