MAX2209A Datasheet, PDF (1/7 Pages) Maxim Integrated Products – RF Power Detector with Shutdown Control

19-5493; Rev 0; 9/10
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General Description
The MAX2209A is a wideband (800MHz to 2GHz) RF
power detector. It takes an RF signal from the directional
coupler at the input, and outputs a DC voltage propor-
tional to the RF peak voltage. The change in output
voltage versus temperature is very repeatable from part
to part and enables a lookup table based on nominal
behavior, minimizing the effective detection error to less
than Q0.5dB relative to room temperature.
The MAX2209A comes in a space-saving 2 x 2, 0.5mm
pitch UCSP™.
RF Power Detector
with Shutdown Control
Features
S -25dBm to -5dBm Power Detection Range
S ±0.5dB Detection Error Due to Temperature
S +2.7V to +5V Single-Supply Operation
S Space-Saving 4-Bump, 1mm² UCSP Package
S Shutdown Control
S 140ns Step-Response Time
Applications
Dual-Band WCDMA Handsets
High-Speed Downlink Packet Access (HSDPA)
High-Speed Uplink Packet Access (HSUPA)
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX2209AEBS+ -40NC to +85NC 4 UCSP
+Denotes a lead(Pb)-free/RoHS-compliant package.
TOP
MARK
AGJ
Functional Diagram/Typical Operating Circuit
MAX2209A
VCC
ADC
A1
A2
OUT
VCC
B1
GND
B2
RFIN/
SHDN
RF INPUT
2kI
SHDN
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products   1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.