_______________General Description

The MAX2630/MAX2631/MAX2632/MAX2633 are low-

voltage, low-noise amplifiers for use from VHF to

microwave frequencies. Operating from a single +2.7V

to +5.5V supply, these devices have a flat gain

response to 900MHz. Their low noise figure and low

supply current make them ideal for receive, buffer, and

transmit IF applications.

The MAX2630/MAX2631 are biased internally, eliminat-

ing the need for external bias resistors or inductors. The

MAX2632/MAX2633 have a user-selectable supply cur-

rent, which can be adjusted by adding a single external

resistor. This allows customized output power and gain

according to specific applications requirements. The

MAX2631/MAX2633 feature a shutdown pin that allows

them to be powered down to less than 1µA supply cur-

rent. Aside from a single bias resistor required for the

MAX2632/MAX2633, the only external components

needed for this family of amplifiers are input and output

The MAX2630 comes in a 4-pin SOT143 package, re-

quiring minimal board space. The MAX2631/MAX2632

come in small 5-pin SOT23 packages. The MAX2633

comes in a 6-pin SOT23 package.

________________________Applications

Personal Communicating Systems

Cordless Phones

Global Positioning Systems

Cellular Phones

Wireless Local Area Networks

ISM Radios

Wireless Local Loops

TV Tuners

Land Mobile Radios

Set-Top Boxes

____________________________Features

o Single +2.7V to +5.5V Operation

o Internally Biased (MAX2630/MAX2631)

o Adjustable Bias (MAX2632/MAX2633)

o 6.6mA Supply Current (insensitive to supply

voltage)

o 1µA Shutdown Current (MAX2631/MAX2633)

o 3.7dB Noise Figure

o 13.4dB Gain

o Ultra-Small SOT Packages

VHF-to-Microwave, +3V,

General-Purpose Amplifiers

________________________________________________________________ Maxim Integrated Products

1

OUT

GND

3

4

21

IN

SOT143

TOP VIEW

MAX2630

GND

OUT

1

5

IN

BIAS

MAX2632

SOT23-5

2

3

4

GND

BIAS

OUT

1

6

5

IN

SHDN

MAX2633

SOT23-6

2

3

4

GND

OUT

1

5

IN

SHDN

MAX2631

SOT23-5

2

3

4

_________________Pin Configurations

OFF

ON

SHDN

GND

OUT

IN

BIAS

IN

OUT

BIAS

MAX2633

__________Typical Operating Circuit

PART

MAX2630EUS-T

MAX2631EUK-T

MAX2632EUK-T

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

TEMP RANGE

PIN-

PACKAGE

4 SOT143-4

5 SOT23-5

5 SOT23-5

______________Ordering Information

MAX2633EUT-T

-40°C to +85°C

6 SOT23-6

19-1181; Rev 2; 8/03

SOT TOP

MARK*

DG_ _

AABK

AABL

AAAA

*The first two letters in the SOT top mark identify the part,

while the remaining two letters are the lot-tracking code.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.