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M02011

1

CMOS Transimpedance Amplifier with AGC

for Fiber Optic Networks up to 622 Mbps

Rev V5

Applications

•APON

•BPON

•ATM/SONET

The M02011 is a CMOS transimpedance amplifier with AGC. The AGC gives a wide dynamic range of 40 dB. The

high transimpedance gain of 66 k

Ω ensures good sensitivity.

For optimum system performance, the M02011 die should be mounted with a GaAs or InGaAs PIN photodetector

inside a lensed TO-Can or other optical sub-assembly.

The M02011 can either bias the PIN diode from the internal regulator, or use an externally biased PIN diode.

A replica of the average photodiode current is available at the MON pad for photo-alignment and 'Loss of Signal'

monitoring.

Features

• Typical –34 dBm sensitivity, +6 dBm saturation at 622 Mb/s when used with 0.9

A/W InGaAs PIN.

(Cpd

• Typical differential transimpedance: 65 k

Ω

• Fabricated in standard CMOS

• Differential output

• Standard +3.3 Volt supply

• Available in die form only

• Monitor output

• AGC provides dynamic range of 40 dB

• Internal or external bias for photodiode

• PIN or APD sensor

• Same pad layout and die size as M02013/14/15/16

Typical Applications Diagram

PINA

DOUT

DOUTB

PINK

470 pF

1 nF

Monitor Output

Rm

Typically

AC-Coupled

to Limiting

Amplifier

Limiting

Amplifier

M02011