The MAX3861 is a low-power amplifier with automatic
gain control (AGC), designed for WDM transmission
systems employing optical amplifiers and requiring a
vertical threshold adjustment after the post amp.
Operating from a single 3.3V supply, this AGC amplifier
linearly amplifies/attenuates the input signal while maintaining
a fixed output-voltage swing at data rates up to
2.7Gbps. The input and output are on-chip terminated
to match 50Ω interfaces.
This amplifier has a small-signal bandwidth of 3.4GHz
and an input-referred noise of 0.26mVRMS. Over an
input signal range of 6mVP-P to 1200mVP-P (46dB), the
MAX3861 delivers a constant output amplitude
adjustable from 400mVP-P to 920mVP-P. Variation in
output swing is controlled within 0.2dB over a 16dB
input range. The MAX3861 provides a received-signalstrength
indicator (RSSI) that is linear, within 2.5%, for
input signal levels up to 100mVP-P and an input signal
detect (SD) with programmable threshold.
Key Features
Applications/Uses
Single 3.3V Power Supply
72mA Supply Current
3.4GHz Small-Signal Bandwidth
0.26mVRMS Input-Referred Noise
6mVP-P to 1200mVP-P Input Range (46dB)
Input Signal Detect with Programmable Threshold
RSSI (Linear Up to 100mVP-P)
Adjustable Output Amplitude
0.2dB Output Voltage Variation (Over 16dB Input Signal Variation)
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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