MAX3658 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – 622Mbps, Low-Noise, High-Gain Transimpedance Preamplifier

19-3015; Rev 1; 5/04
622Mbps, Low-Noise, High-Gain
Transimpedance Preamplifier
General Description
The MAX3658 is a transimpedance preamplifier for
receivers operating up to 622Mbps. Low noise, high
gain, and low power dissipation make it ideal for fiber
access and small form-factor transceivers.
The MAX3658 features 45nA input-referred noise, 18kΩ
transimpedance gain, 580MHz bandwidth, and 2mA_P-P
input overload. Operating from a +3.3V supply, the
MAX3658 consumes only 66mW. An integrated filter
resistor provides positive bias for the photodiode. These
features, combined with a small die size, allow easy
assembly into a TO-46 header with a photodiode. The
MAX3658 also includes an average photocurrent monitor.
The MAX3658 has typical optical sensitivity of -33dBm
(0.9A/W), which exceeds the class-B APON require-
ments. Typical optical overload is 1dBm. The MAX3658
is available in die form with both output polarities
(MAX3658A and MAX3658B). The MAX3658A is also
available in a 3mm x 3mm 8-pin TDFN package.
Applications
Optical Receivers (Up to 622Mbps Operation)
Passive Optical Networks
SFF/SFP Transceivers
FTTx Transceivers
Features
♦ 45nA_RMS Noise, -33dBm Sensitivity
♦ 18.3kΩ Transimpedance Gain
♦ 580MHz Bandwidth
♦ 2mA_P-P Input Overload, 1dBm Overload
♦ 66mW Power Dissipation
♦ 3.3V Operation
♦ Average Photocurrent Monitor
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX3658AETA
MAX3658AE/D
MAX3658BE/D
-40°C to +85°C
—
—
8 TDFN
(3mm x 3mm)
Dice*
Dice*
T833-1
—
—
*Dice are designed to operate over a -40°C to +100°C junction
temperature (T_j) range, but are tested and guaranteed at T_A =
+25°C.
Pin Configuration appears at end of data sheet.
Typical Operating Circuit
+3.3V
CVCC1
CVCC2
RFILT
FILT
CFILT
IN
OUT+
OUT-
MAX3658
GND MON
5-PIN TO-46 HEADER
75Ω*
75Ω*
0.1µF
25Ω*
0.1µF
COUT*
25Ω*
MAX3748
100Ω
LIMITING AMPLIFIER
RMON
*OPTIONAL COMPONENTS
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.