General Description

The MAX2205–MAX2208 wideband (800MHz to 2GHz)

power detectors are ideal for GSM/EDGE (MAX2206),

TDMA (MAX2207), and CDMA (MAX2205/MAX2208)

applications. The MAX2206/MAX2207/MAX2208 take an

RF signal from a directional coupler at the input, and out-

put a highly repeatable voltage. The output voltage

increases monotonically with increasing input power. The

output is compensated for temperature and process

shifts, reducing the worst-case variation to less than

±1dB at full power and ±2.5dB at the lowest power.

The MAX2206 features 40dB dynamic range, making

it ideally suited to GSM/EDGE applications. The

MAX2207 offers reduced current consumption for TDMA

applications. The MAX2205/MAX2208 each have an inte-

grated filter to allow for average power detection of

CDMA signals over a 25dB dynamic range. The

MAX2206/MAX2207/MAX2208 offer internal 50

Ω termina-

tion for interfacing with a directional coupler. The

MAX2205 has a high-impedance input to provide a low-

loss resistive tap in CDMA applications. All devices allow

the user to control the averaging time constant externally.

0.5mm-pitch UCSP™ and require only three external

components.

Applications

Dual-Band GSM/EDGE Handsets

Dual-Band CDMA/TDMA Handsets

WCDMA Handsets

PA Modules

Features

o Internal Temperature Compensation Gives ±0.3dB

Detection Accuracy

o No External Filter or Op Amp Required

o Power-Detection Range

40dB (MAX2206)

25dB (MAX2205/MAX2207/2208)

RF Power Detectors in UCSP

________________________________________________________________ Maxim Integrated Products

1

TOP VIEW

GND

(B1)

OUT

(B2)

TEMPERATURE-

COMPENSATED

PEAK

DETECTOR

SHUTDOWN

LOGIC

UCSP

TO ADC

10k

Ω (MAX2205)

240

Ω (MAX2206/MAX2207/MAX2208)

27pF

680

Ω (MAX2205)

10

Ω (MAX2206)

0

Ω (MAX2207/MAX2208)

47pF

FROM COUPLER/TAP

(MAX2206/MAX2207/MAX2208)

MAX2205

MAX2206

MAX2207

MAX2208

SHDN LOGIC INPUT

RFIN/SHDN

(A1)

(A2)

(OPTIONAL)

FROM PA OUTPUT

(MAX2205)

Pin Configuration/Functional Diagram/Typical Operating Circuit

19-2015; Rev 2; 8/02

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.

EVALUATION

KIT

AVAILABLE

Ordering Information

UCSP is a trademark of Maxim Integrated Products, Inc.

*Requires solder temperature profile described in the Absolute

Maximum Ratings section.

PART

TEMP RANGE

BUMP-PACKAGE

MAX2205EBS

-40°C to +85°C2

× 2 UCSP*

MAX2206EBS

-40°C to +85°C2

× 2 UCSP*

MAX2207EBS

-40°C to +85°C2

× 2 UCSP*

MAX2208EBS

-40°C to +85°C2

× 2 UCSP*