MAX2090

50MHz to 1000MHz Analog VGA with Threshold

Alarm Circuit and Error Amplifier for Level Control

General Description

The MAX2090 high-linearity analog variable-gain ampli-

fier (VGA) is a monolithic SiGe BiCMOS attenuator,

amplifier, error amplifier, and alarm circuit, designed to

interface with 50I systems operating in the 50MHz to

1000MHz frequency range. An external analog control

voltage controls the analog attenuator. The device fea-

tures a gain range of -10.9dB to +26.1dB, a noise figure

of 4dB, OIP3 linearity of +38dBm, and a wide RF band-

width. Each of these features makes the device an ideal

VGA for numerous receiver and transmitter applications.

In addition, the device operates from a single +5.0V sup-

ply.

This device is available in a compact 20-pin TQFN pack-

age (5mm x 5mm) with an exposed pad. Electrical per-

formance is guaranteed over the extended temperature

Applications

Point-to-Point Receivers and Transmitters

RF/IF Variable-Gain Stages

Temperature-Compensation Circuits

Cellular Applications

WiMAX™ Applications

LTE Applications

Fixed Broadband Wireless Access

Wireless Local Loop

Military Systems

Benefits and Features

S

Wideband Coverage



50MHz to 1000MHz RF Frequency Range

S

High Linearity



+38dBm OIP3 (100MHz)



+17.5dBm Output -1dB Compression Point

(100MHz)

S

26.1dB Gain

S

37dB Attenuator Range

S

4dB Noise Figure (Includes Attenuator Insertion

Loss)

S

0.25dB Gain Variation Over 100MHz Bandwidth

S

Analog Attenuator Controlled with External

Voltage

S

Alarm Circuit with Adjustable Threshold

S

Extended +4.75V to +5.8V Supply Range

S

Lead(Pb)-Free Package

S

Power-Down Capabilities

19-6034; Rev 1; 9/12

Ordering Information appears at end of data sheet.

WiMAX is a trademark of WiMAX Forum.

For pricing, delivery, and ordering information, please contact Maxim Direct

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