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MAX2015EUA-T

0.1GHz to 3GHz, 75dB Logarithmic Detector/Controller

Maxim Integrated 

19-2998; Rev 2; 2/07

EVAALVUAAILTAIOBNLEKIT

0.1GHz to 3GHz, 75dB Logarithmic

Detector/Controller

General Description

The MAX2015 complete multistage logarithmic amplifier

is designed to accurately convert radio-frequency (RF)

signal power in the 0.1GHz to 3GHz frequency range to

an equivalent DC voltage. The outstanding dynamic

range and precision over temperature of this log ampli-

fier make it particularly useful for a variety of base sta-

tion and other wireless applications, including

automatic gain control (AGC), transmitter power mea-

surements, and received signal strength indication

(RSSI) for terminal devices.

The MAX2015 can also be operated in a controller

mode where it measures, compares, and controls the

output power of a variable-gain amplifier as part of a

fully integrated AGC loop.

This logarithmic amplifier provides much wider mea-

surement range and superior accuracy compared to

controllers based on diode detectors, while achieving

excellent temperature stability over the full -40°C to

+85°C operating range.

Applications

AGC Measurement and Control

RF Transmitter Power Measurement

RSSI Measurements

Cellular Base Station, WLAN, Microwave Link,

Radar, and other Military Applications

Features

♦ Complete RF Detector/Controller

♦ 0.1GHz to 3GHz Frequency Range

♦ Exceptional Accuracy Over Temperature

♦ High Dynamic Range

♦ 2.7V to 5.25V Supply Voltage Range*

♦ Scaling Stable Over Supply and Temperature

Variations

♦ Controller Mode with Error Output

♦ Shutdown Mode with Typically 1µA of Supply

Current

♦ Available in 8-Pin µMAX® and TDFN Packages

*See Power-Supply Connections section.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Ordering Information

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX2015EUA

-40°C to +85°C

MAX2015EUA-T -40°C to +85°C

8 µMAX

8 µMAX

U8-1

U8-1

T = Tape-and-reel.

+Denotes lead-free and RoHS compliance.

*EP = Exposed paddle.

Ordering Information continued at end of data sheet.

Functional Diagram

2

INHI

3

INLO

POWER DETECTORS

Σ

Σ

50Ω

7dB

7dB

VCC

1, 4

Σ

7dB

8 OUT

7

SET

20kΩ

5

PWDN

MAX2015

OFFSET AND COMMON-

MODE AMP

20kΩ

6

GND

Pin Configuration appears at end of data sheet.

________________________________________________________________ Maxim Integrated Products 1

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.

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