155Mbps Low-Noise Transimpedance

Amplifier

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11

CML OUTPUT

STAGE

100Ω

*COMPONENT NOT REQUIRED IF L < 10cm.

L

100Ω∗

100Ω∗

50Ω∗

50Ω∗

100Ω

MAX3657

50Ω

50Ω

DIFFERENTIAL CML

INPUT STAGE

Figure 6a. 50Ω DC-Coupled Interface

CML OUTPUT

STAGE

100Ω

NOTE: THE PARALLEL COMBINATION AT THE UNUSED OUTPUT

CAN BE REPLACED BY A SINGLE EQUIVALENT 33Ω RESISTOR.

*COMPONENT NOT REQUIRED IF L < 10cm.

L

100Ω∗

100Ω∗

50Ω∗

100Ω

50Ω

MAX3657

50Ω

SINGLE-ENDED

INPUT STAGE

Figure 6b. 50Ω DC-Coupled Single-Ended Output Interface