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MAX2014 Datasheet

75dB Logarithmic Detector/Controller

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MAX2014 pdf
19-0583; Rev 0; 6/06
50MHz to 1000MHz, 75dB Logarithmic
Detector/Controller
General Description
The MAX2014 complete multistage logarithmic amplifier is
designed to accurately convert radio-frequency (RF) sig-
nal power in the 50MHz to 1000MHz frequency range to
an equivalent DC voltage. The outstanding dynamic range
and precision over temperature of this log amplifier make it
particularly useful for a variety of base-station and other
wireless applications, including automatic gain control
(AGC), transmitter power measurements, and received-
signal-strength indication (RSSI) for terminal devices.
www.DTahteaSMheAeXt42U0.c1o4mcan 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
Optical Networks
Features
Complete RF Detector/Controller
50MHz to 1000MHz 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 TDFN Package
*See the Power-Supply Connections section.
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX2014ETA-T -40°C to +85°C 8 TDFN-EP*
(3mm x 3mm)
MAX2014ETA+T
-40°C to +85°C
8 TDFN-EP*
(3mm x 3mm)
+Denotes lead-free package.
T = Tape-and-reel package.
*EP = Exposed paddle.
T833-2
T833-2
Functional Diagram
VCC
1, 4
2
INHI
3
INLO
POWER DETECTORS
ΣΣ
50Ω 7dB 7dB
Σ
7dB
8 OUT
7
SET
20kΩ
5
PWDN
MAX2014
OFFSET AND COMMON-
MODE AMP
20kΩ
Pin Configuration appears at end of data sheet.
6
GND
________________________________________________________________ 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.
Maxim Integrated Products
Maxim Integrated Products


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