Typical operating characteristics (continued) – Rainbow Electronics MAX3745 User Manual

Page 5

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MAX3744/MAX3745

2.7Gbps SFP Transimpedance

Amplifiers with RSSI

_______________________________________________________________________________________

5

Typical Operating Characteristics (continued)

(V

CC

= +3.3V, C

IN

= 0.85pF, T

A

= +25

°C, unless otherwise noted.)

0

1.0

0.5

2.5

1.5

3.5

4.0

-40

20

-20

40

60

100

BANDWIDTH vs. TEMPERATURE

MAX3744 toc14

TEMPERATURE (

°C)

3dB BANDWIDTH (GHz)

3.0

2.0

0

80

C

IN

= 0.6pF

DIFFERENTIAL S22 vs. FREQUENCY

MAX3744 toc10

FREQUENCY (MHz)

S22 (dB)

3500

3000

2500

2000

1500

1000

500

-25

-20

-15

-10

-5

0

-30

0

4000

MAX3744

MAX3745

0

20

10

40

30

60

50

70

-40

0

20

-20

40

60

80

100

SUPPLY CURRENT

vs. TEMPERATURE

MAX3744 toc11

TEMPERATURE (

°C)

SUPPLY CURRENT (mA)

-200

-150

-100

-50

0

50

100

150

200

-100

-50

0

50

100

DC TRANSFER FUNCTION

(V

FILT

= 0V)

MAX3744 toc12

INPUT CURRENT (mA

P-P

)

OUTPUT VOLTAGE (mV

P-P

)

150

200

250

300

350

400

450

500

550

0

500

1000

1500

2000

RSSI

MAX3744, MAX3748A

MAX3744 toc13

AVERAGE INPUT CURRENT (

µA)

MAX3748 RSSI OUTPUT (

µ

A)

T

A

= -40

°C

T

A

= +85

°C

60ps/div

EYE DIAGRAM

TEMPERATURE = +100

°C INPUT = 20µA

P-P

DATA RATE = 2.7Gbps

6mV/div

MAX3744 toc15

2

23

-1 PRBS

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