MAX2209 Datasheet, PDF (1/5 Pages) Maxim Integrated Products – RF Power Detector

19-4946; Rev 0; 10/09
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RF Power Detector
General Description
The MAX2209 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 MAX2209 comes in a space-saving 2 x 2, 0.5mm
pitch wafer-level package (WLP) and requires only two
external components.
Applications
Dual-Band WCDMA Handsets
High-Speed Downlink Packet Access (HSDPA)
High-Speed Uplink Packet Access (HSUPA)
Features
S -25dBm to 0dBm 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 On-Chip 50I Termination and DC-Blocking
Capacitor
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX2209EBS+ -40NC to +85NC 4 UCSP
AGJ
+Denotes a lead(Pb)-free/RoHS-compliant package.
Pin Configuration/Functional Diagram/Typical Operating Circuit
MAX2209
VCC
A1
A2
ADC
OUT
VCC
B1
B2
GND
RFIN
RF INPUT
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.