ATA06212A Datasheet, PDF (1/8 Pages) ANADIGICS, Inc – AGC Transimpedance Amplifier

ATA06212A
AGC Transimpedance Amplifier
PRELIMINARY DATA SHEET- Rev 1.2
FEATURES
• Single +5 Volt Supply
• Automatic Gain Control
• - 34 dBm Sensitivity
• 0 dBm Optical Overload
• 425 MHz Bandwidth
APPLICATIONS
• SONET OC-12/SDH STM-4 (622 Mb/s)
Receiver
• Low Noise RF Amplifier
Vdd2
Vdd1
Vdd2
GND
GND
I in
GND
V out
GND
GND GND CBY CBY GND CAGC GND
D1
PRODUCT DESCRIPTION
The ANADIGICS ATA06212A is a 5V low noise
transimpedance amplifier with AGC designed to be
used in OC-12/STM-4 fiber optic links. The device is
used in conjunction with a photodetector (PIN diode
or avalanche photodiode) to convert an optical signal
into an output voltage. The ATA06212A offers a
bandwidth of 425MHz and a dynamic range of 35dB.
It is manufactured in a GaAs MESFET process and
is available in bare die form.
V_DD
AGC
I_IN
GND
or
neg. supply
V_OUT
GND
Photodetector cathode must be connected to
I_IN for proper AGC operation
Figure 1: Equivalent Circuit
08/2001