ATA7603 Datasheet, PDF (1/12 Pages) ANADIGICS, Inc – 10 Gb/s High Overload TIA PRELIMINARY DATA SHEET - Rev 1.0

FEATURES
• 1800 Ω Differential Transimpedance
• 3 mApp Maximum Input Current
• 14 pA/√Hz Input Noise Current Density
• Single –5.2 V Power Supply
• Low Group Delay
• Outputs DC or AC Coupled
APPLICATIONS
• SONET/SDH OC-192 /STM-64 VSR,
Short-Reach, Intermediate-Reach, and
Long-Reach Receivers
• 10 Gb/s Ethernet
• Fiber optic receivers, transceivers, and
transponders
ATA7603
10 Gb/s High Overload TIA
PRELIMINARY DATA SHEET - Rev 1.0
GND
CEXT
GND
GND
IIN
GND
VEE
VEE
VOUT
VOUT
GND
D1
Die
PRODUCT DESCRIPTION
The ANADIGICS ATA7603 is a –5.2 V high-speed
transimpedance amplifier (TIA) designed for
10 Gb/s optical receiver applications available in
bare die form and manufactured using an InGaP
based HBT process. The device is used in
conjunction with a photodetector to convert an
optical signal into a differential output voltage that
can be AC or DC coupled to a post amplifier. The
ATA7603 has an internal overload support circuit and
can accept optical inputs as high as +3 dBm. With
its low noise and high optical overload capability,
the device is well suited for 10 Gb/s Ethernet and
OC-192 Very Short-Reach (VSR), Short-Reach,
Intermediate-Reach and Long-Reach optical
receivers, transceivers and transponders.
VBIAS
IIN
VREF
DC
Offset
Control
Low Pass
Filter
VOUT
VOUT
CEXT
VEE
Figure 1: Circuit Block Diagram
06/2002