MAX2015_07 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – 0.1GHz to 3GHz, 75dB Logarithmic Detector/Controller

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
V_CC
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.