MAX3793 データシートの表示（PDF） - Maxim Integrated

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MAX3793

1Gbps to 4.25Gbps Multirate Transimpedance Amplifier with Photocurrent Monitor

Maxim Integrated 

1Gbps to 4.25Gbps Multirate Transimpedance

Amplifier with Photocurrent Monitor

Pin Description

BOND PAD NAME

FUNCTION

1

OUT+ Noninverting Data Output. Current flowing into IN causes the voltage at OUT+ to increase.

2, 3

VCC

+3.3V Supply Voltage. The pads are not internally connected. Therefore, they must always be externally

bonded.

4

FILT

Provides bias voltage for the photodiode through a 750Ω resistor to VCC. When grounded, this pin disables

the DC-cancellation amplifier to allow a DC path from IN to OUT+ and OUT- for testing.

5

IN TIA Input. Signal current from photodiode flows into this pin.

6

MON Photocurrent Monitor. Output current from MON is proportional to the average current in RFILT. Connect a

resistor between MON and ground to monitor the average photocurrent.

7, 11

8, 10

9

GND

N.C.

OUT-

Circuit Ground. The pads are not internally connected. Therefore, they must always be externally bonded.

No Connection

Inverting Data Output. Current flowing into IN causes the voltage at OUT- to decrease.

See the Wire Bonding section for recommended bonding sequence, Figure 4.

Functional Diagram

VCC

Rf

VOLTAGE

OUTPUT ROUT

ROUT

AMPLIFIER

BUFFER

IN

TIA

OUT+

OUT-

LOWPASS

FILTER

MAX3793

EN

FILT

MON

DC CANCELLATION

VCC

FILTER

NETWORK

6 _______________________________________________________________________________________

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