AZMIC AZ3267 Datasheet

AZ3267

2.5Gbps Transimpedance Amplifier

1630 S. STAPLEY DR., SUITE 125 • MESA, ARIZONA 85204 • USA • [phone] • FAX [phone]

www.azmicrotek.com

ARIZONA MICROTEK, INC.

FEATURES

• 1900 MHz Bandwidth

• 1 mA Input Overload

• 11 pA/Hz

1/2

Noise Density

• Single 3.0V to 3.6V or 4.5V to 5.5V Supply

• Internal DC Restoration Capacitor

• Direct Replacement for MAX3267

DESCRIPTION

The AZ3267 is a transimpedance amplifier for 2.5Gbps 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 V

CC

.

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 V

CC5

supply pin, the VCC pin should be bypassed to ground with a capacitor of at

least 0.1µf.

PACKAGE AVAILABILITY

PACKAGE PART NO. MARKING

DIE AZ3267 N/A

PAD DESCRIPTION

NAME FUNCTION

VCC Supply Voltage 3.0 to 3.6V
V

CC5

Supply Voltage 4.5 to 5.5V

IN Photodiode Input

FILTER

Bias Voltage Via 1.5kΩ

Resistor
GND Ground
OUT- Inverting Output
OUT+ Noninverting Output

BLOCK DIAGRAM

IN

1.5 K

OUT+

OUT-

V

CC5

V

CC

FILTER

GND

AZ3267

March 2002 * REV - 3 www.azmicrotek.com
2

Absolute Maximum Ratings are those values beyond which device life may be impaired.

Symbol Character Value Unit

V

CC2

DC Supply Voltage (Referenced to GND) 6.0 V

TA Operating Temperature Range (In Free-Air) -40 to +85

°C

T

STG

Storage Temperature Range -65 to +150

°C

IN Current

±3

mA

FILTER Current

±3

mA

ELECTRICAL CHARACTERISTICS (V

CC

= 3.0V to 3.6V or V

CC5

= 4.5 to 5.5V; 100Ω load between OUT+ and OUT-)

Symbol Characteristic Min Typ Max Unit Condition

Input Bias Voltage 0.70 0.81 0.93 V
ICC Power Supply Current 21 35 mA
Transimpedance 1540 1900 2330

Ω

40µA p-p input

Ro Output Impedance 50

Ω

Per output pin
Maximum Differential Output Voltage 185 250 415 mV p-p 1 mA p-p input
Filter Resistor 1220 1500 1860

Ω
AC Input Overload 1.0 mA p-p
DC Input Overload 0.65 mA
Input Referred Noise Density 11 pA/Hz½
Small Signal Bandwidth 1530 1900 2420 MHz

≤40 uA p-p

Low Frequency Cutoff 44 kHz

-3 dB, input ≤40 uA p-p

Power Supply Rejection Ratio 50 dB Output referred, f < 2 MHz

1355-002

OUT-

OUT+

GND

GND

VCC

VCC5

IN

FILTER

Die Size: 1260 x 800 µm

Pad Size: 85 x 85 µ