AMT8100
1.25 Gb/s Integrated 850 nm MSM-TIA
Data Sheet - Rev1
FEATURES
· 1.25 Gb/s Differential Output TIA
· 5.0V Operation
· Automatic Gain Control
· 850nm Photodetector with 100 mm2
Active Area
· Integrated MSM Detector & TIA
· TO46 Lens Package
APPLICATIONS
· Gigabit Ethernet (1.25 Gb/s)
· Fiber Channel (1.0625 Gb/s)
Product Description
The ANADIGICS AMT8100 is a 5V monolithically
integrated Metal-Semiconductor-Metal (MSM)
photodetector and transimpedance amplifier (TIA)
used to convert an 850nm input optical signal into a
differential output voltage, and is manufactured in
ANADIGICS 6 GaAs wafer fabrication facility. The
integrated MSM and TIA receiver maximizes the
receiver performance by minimizing the
photodetector input parasitics to the TIA and
T46L
TO-46L Lens Package
internally biasing the photodetector to achieve high
sensitivity, bandwidth and overload performance. As
an integrated product the reliability is inherently
better than a discrete solution, and both the MSM-TIA
integrated circuit and TO46 lens packaged
receiver pass stringent reliability requirements.
These products are readily designed into receivers
and transceivers for Gigabit Ethernet and Fibre
Channel applications.
Figure 1: AMT8100T46L Equivalent Circuit
VDD
2
4K
PIN
AGC
US Patents: 5047728, 5646573
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