ATA01501 Datasheet, PDF (1/12 Pages) ANADIGICS, Inc – AGC Transimpedance Amplifier

FEATURES
· Single +5 Volt Supply
· Automatic Gain Control
· -38 dBm Sensitivity
· 0 dBm Optical Overload
· 175 MHz Bandwidth
APPLICATIONS
· SONET OC-3/SDH STM-1 (155mb/s) receiver
· FDDI Ethernet Fiber LAN
· Low Noise RF Amplifier
ATA01501
AGC Transimpedance Amplifier
SONET OC-3
PRELIMINARY DATA SHEET - Rev 1.6
VDD1
VDD2
GND
19 I
GND
IIN
1992
GND
VOUT
GND GND GND CBY CBY GND ^CAGC GND
D1
Die Package
S2
12 Pin 4 Sided
SQFP Package
PRODUCT DESCRIPTION
The ANADIGICS ATA01501 is a 5V low noise
transimpedance amplifier with AGC designed to be
used in OC-3/STM-1 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 ATA01501 offers a wide
bandwidth of 175MHz and a dynamic range of 38dB.
It is manufactured in a GaAs MESFET process and
available in bare die form or a 12 pin SQFP package.
VDD1
IIN
GND
or
neg.supply
AGC
19 K
- 45
VGA
VDD2
70K
+
CAGC
4pF
+ 0.8
VOUT
US PATENT
GND
CBY
Photodector cathode must be connected
to IIi_In_N for proper AGC operation
Figure 1: Equivalent Circuit
08/2001
2-1