AMT8304 Datasheet, PDF (1/12 Pages) ANADIGICS, Inc – 2.125 Gb/s Integrated 850nm MSM-TIA

AMT8304
2.125 Gb/s Integrated 850nm MSM-TIA
DATA SHEET - Rev 2.0
FEATURES
• Differential Output TIA
• 3.3V Operation
• Automatic Gain Control
• Integrated 850nm MSM Detector & TIA
• TO-46 Ultra Flat-Window or Lens Hermetic
Package
• High Reliability
APPLICATIONS
• 2x Fibre Channel (2.125 Gb/s)
PRODUCT DESCRIPTION
The ANADIGICS AMT8304 is a 3.3V 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
VDD ₂
T46F
TO-46 Ultra
Flat Window
Package
T46L
T4TL
TO-46
TO-46 Lens
Lens Package with
Package Tabbed Header
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 TO-46 flat window and TO-46
lens packaged receiver pass stringent reliability
requirements. These products are readily designed
into receivers and transceivers for 2x Fibre Channel
applications.
AGC
OUT
1
3
OUT
US Patents: 5047728, 5646573
P_IN
Charge
4.5 GHz
Pump
Osc
4
Figure 1: Equivalent Circuit
12/2003