beautypg.com

Typical operating characteristics (continued) – Rainbow Electronics MAX2641 User Manual

Page 4

background image

MAX2640/MAX2641

400MHz to 2500MHz SiGe
Ultra-Low-Noise Amplifiers

4

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(V

CC

= +3V, P

RFIN

= -34dBm, Typical Operating Circuits, T

A

= +25°C, unless otherwise noted.)

-60

-30

-40

-50

-20

-10

0

1800

1880

1840

1920

1960

2000

MAX2641 MATCHED AT 1900MHz

REVERSE ISOLATION vs. FREQUENCY

MAX2640-10

FREQUENCY (MHz)

REVERSE ISOLATION (dB)

-16

-13

-14

-15

-12

-11

-10

-9

-8

-7

-6

1800

1850

1900

1950

2000

MAX2641 MATCHED AT 1900MHz

INPUT RETURN LOSS AND

OUTPUT RETURN LOSS vs. FREQUENCY

MAX2640-09

FREQUENCY (MHz)

RETURN LOSS (dB)

INPUT RETURN LOSS

OUTPUT RETURN LOSS

-16

-13

-14

-15

-12

-11

-10

-9

-8

-7

-6

800

850

900

950

1000

MAX2640 MATCHED AT 900MHz

INPUT RETURN LOSS AND

OUTPUT RETURN LOSS vs. FREQUENCY

MAX2640-04

FREQUENCY (MHz)

RETURN LOSS (dB)

INPUT RETURN LOSS

OUTPUT RETURN LOSS

12

13

15

14

16

1800

1840

1880

1920

1960

2000

MAX2641 MATCHED AT 1900MHz

GAIN vs. FREQUENCY

MAX2640-07

FREQUENCY (MHz)

GAIN (dB)

T

A

= -40°C

T

A

= +25°C

T

A

= +85°C

-60

-30

-40

-50

-20

-10

0

800

880

840

920

960

1000

MAX2640 MATCHED AT 900MHz

REVERSE ISOLATION vs. FREQUENCY

MAX2640-05

FREQUENCY (MHz)

REVERSE ISOLATION (dB)

0

2

1

4

3

5

6

2

4

3

5

6

MAX2641

SUPPLY CURRENT vs. SUPPLY VOLTAGE

MAX2640-06

V

CC

(V)

I

CC

(mA)

T

A

= +85°C

T

A

= +25°C

T

A

= -40°C

0

1

2

3

1800

1880

1840

1920

1960

2000

MAX2641 MATCHED AT 1900MHz

NOISE FIGURE vs. FREQUENCY

MAX2640-08

FREQUENCY (MHz)

NOISE FIGURE (dB)

T

A

= +85°C

T

A

= +25°C

T

A

= -40°C