MAX3658AETA+T Maxim Integrated Products, MAX3658AETA+T Datasheet - Page 6

• Manufacturer Part Number: MAX3658AETA+T
• Description: IC AMP TRANSIMPEDANCE 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Transimpedance Amplifierr

Specifications of MAX3658AETA+T

• Applications: Optical Networks
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

622Mbps, Low-Noise, High-Gain
Transimpedance Preamplifier
The MAX3658 transimpedance amplifier is designed for
622Mbps fiber optic applications. The MAX3658 is
comprised of a transimpedance amplifier, a voltage
amplifier, an output buffer, a DC cancellation circuit,
and a photocurrent monitor.
The signal current at the input flows into the summing
node of a high-gain amplifier. Shunt feedback through
resistor R
diodes clamp the output signal for large input currents
(Figure 1).
The voltage amplifier provides additional gain and con-
verts the transimpedance amplifier single-ended output
into a differential signal.
6
MON
FILT
_______________________________________________________________________________________
IN
F
converts this current into a voltage. Schottky
Transimpedance Amplifier
Detailed Description
Voltage Amplifier
R
TIA
f
EN
LOWPASS
RESISTIVE
NETWORK
FILTER
AMPLIFIER
VOLTAGE
Figure 1. MAX3658 Limited Output
AMPLITUDE
DC CANCELLATION
V
CC
OUTPUT
BUFFER
Functional Diagram
MAX3658
R
R
TIME
OUTPUT (SMALL SIGNALS)
OUTPUT (LARGE SIGNALS)
OUT
OUT
OUT+
OUT-