ARIZONA MICROTEK, INC.
AZ3266
1.25Gbps Transimpedance Amplifier
FEATURES
• 920 MHz Bandwidth
• 1mA Input Overload
• 6.6 pA/Hz1/2 Noise Density
• Single 3.0V to 3.6V or 4.5V to 5.5V Supply
• Internal DC Restoration Capacitor
• Direct Replacement for MAX3266
PACKAGE AVAILABILITY
PACKAGE
8 SOIC
8 SOIC T&R
8 SOIC T&R
DIE
PART NO.
AZ3266D
AZ3266DR1
AZ3266DR2
AZ3266X
MARKING
AZ3266
AZ3266
AZ3266
N/A
DESCRIPTION
The AZ3266 is a transimpedance amplifier for 1.25Gbps fiber optic receivers. The part operates from a single
3.0V to 3.6V or 4.5V to 5.5V supply. Photodiode bias is provided via a 1.5kΩ resistor from VCC.
DC restoration is built in, with no external compensation capacitor required. The DC restoration can be disabled
for testing by pulling the FILTER pin to ground potential.
If the part is operated using the VCC5 supply pin, the VCC pin should be bypassed to ground with a capacitor of at
least 0.1µf.
PIN DESCRIPTION
PIN
NAME
FUNCTION
1
VCC
2
VCC5
3 IN
Supply Voltage 3.0 to 3.6V
Supply Voltage 4.5 to 5.5V
Photodiode Input
4
FILTER
Bias Voltage Via 1.5kΩ
Resistor
5 GND
Ground
6 OUT-
Inverting Output
7 OUT+
Noninverting Output
8 GND
Ground
VCC 1
VCC5 2
IN 3
8 SOIC
8 GND
7 OUT+
6 OUT-
BLOCK DIAGRAM
VCC
FILTER
1.5 K
IN
VCC5
OUT+
OUT-
GND
FILTER 4
5 GND
1630 S. STAPLEY DR., SUITE 125 • MESA, ARIZONA 85204 • USA • (480) 962-5881 • FAX (480) 890-2541
www.azmicrotek.com