MAXIM MAX2205, MAX2208 Technical data

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 out­put 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 inte­grated filter to allow for average power detection of
CDMA signals over a 25dB dynamic range. The
MAX2206/MAX2207/MAX2208 offer internal 50Ω termina-
tion for interfacing with a directional coupler. The
MAX2205 has a high-impedance input to provide a low­loss resistive tap in CDMA applications. All devices allow
the user to control the averaging time constant externally.

The MAX2205–MAX2208 come in a space-saving 2 ✕ 2,

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

♦ Space-Saving 2 ✕ 2 UCSP Occupies Only 1mm

2

♦ Internal Temperature Compensation Gives ±0.3dB

Detection Accuracy

♦ No External Filter or Op Amp Required

♦ Power-Detection Range

40dB (MAX2206)
25dB (MAX2205/MAX2207/2208)

MAX2205–MAX2208

RF Power Detectors in UCSP

________________________________________________________________ Maxim Integrated Products 1

Pin Configuration/Functional

Diagram/Typical Operating Circuit

19-2015; Rev 6; 9/06

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.

2 ✕ 2 UCSP

1.01 mm

✕

1.01 mm

+ Indicates lead-free package.

PART TEMP RANGE BUMP-PACKAGE

MAX2205EBS -40°C to +85°C 2 × 2 UCSP*

MAX2205EBS+ -40°C to +85°C 2 × 2 UCSP*

MAX2206EBS -40°C to +85°C 2 × 2 UCSP*

MAX2206EBS+ -40°C to +85°C 2 × 2 UCSP*

MAX2207EBS -40°C to +85°C 2 × 2 UCSP*

MAX2208EBS -40°C to +85°C 2 × 2 UCSP*

MAX2208EBS+ -40°C to +85°C 2 × 2 UCSP*

TOP VIEW

680Ω (MAX2205)

FROM PA
OUTPUT
(MAX2205)

FROM
COUPLER/TAP
(MAX2206/MAX2207/MAX2208)

10Ω (MAX2206)

0Ω (MAX2207/MAX2208)

SHDN LOGIC INPUT

10kΩ (MAX2205)
240Ω (MAX2206/MAX2207/MAX2208)

V

CC

47pF

RFIN/
SHDN

(A1)

SHUTDOWN

LOGIC

GND
(B1)

TEMPERATURE­COMPENSATED

PEAK

DETECTOR

UCSP

V

CC

(A2)

MAX2205
MAX2206
MAX2207
MAX2208

OUT
(B2)

27pF

TO ADC

C

FILTER

(OPTIONAL)

MAX2205–MAX2208

RF Power Detectors in UCSP

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS (MAX2205–MAX2208)

(VCC= +2.7V to +5.0V, SHDN = +2.0V, no RF signal applied, TA= -40°C to +85°C. Typical values are at VCC= +2.85V and
T

A

= +25°C, unless otherwise noted.) (Note 2)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

VCCto GND...........................................................-0.3V to +6.5V

RFIN/SHDN to GND....................................-0.3V to (V

CC

+ 0.3V)

RF Input Power (800MHz)

(MAX2206/MAX2207/MAX2208) .................................+20dBm

RF Input Power (2GHz)

(MAX2206/MAX2207/MAX2208) .................................+17dBm

RF Input Voltage (800MHz) (MAX2205)..............................1.5V

P

RF Input Voltage (2GHz) (MAX2205) ..................................0.8V

P

Continuous Power Dissipation (TA= +70°C)

2

✕

2 UCSP (derate 3.8mW/°C above +70°C) ............303mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +160°C

Bump Temperature (soldering) (Note 1)

Infrared (15s) (leaded)................................................+220°C

Vapor Phase (60s) (leaded)........................................+215°C

Infrared (15s) (lead-free).............................................+260°C

AC ELECTRICAL CHARACTERISTICS (MAX2205)

(MAX2205 EV kit, VCC= +2.7V to +5.0V, SHDN = +2.0V, fRF= 800MHz to 2GHz, 50Ω system, TA= -40°C to +85°C. Typical values
are at V

CC

= +2.85V and TA= +25°C, unless otherwise noted.) (Note 2)

Supply Voltage V

Idle Supply Current I

Shutdown Supply Current I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CC

IDLE

SHDN

MAX2206 3.5 5.5

MAX2205/MAX2207/MAX2208 2 3.5
SHDN = 0V 0.5 10 µA

2.7 5.0 V

mA

OUT Voltage During Shutdown V

Logic-High Threshold V

Logic-Low Threshold V

SHDN Input Current

Output Current Source Capability MAX2206/MAX2207, V

Output Current Sink Capability MAX2206/MAX2207, V

OUT

I

I

SHDN = 0V 0.01 V

H

L

SHDN = +2.0V -1 +10

IH

IL SHDN

= +0.6V -1 +1

= +2.5V 400 µA

OUT

= 0V 300 µA

OUT

2.0 V

0.6 V

µA

RF Input Frequency f

Turn-On Time t

Response Time t

Variation Due to Temperature

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RF

ON

R

(Note 3) 15 µs

High input power

V

= +2.85V,

CC

= -40°C to +85°C

T

A

(Note 4)

Low input power
(Note 5)

800 2000 MHz

2µs

±0.3 ±1

±1.3 ±2.5

dB

MAX2205–MAX2208

RF Power Detectors in UCSP

_______________________________________________________________________________________ 3

Note 1: This device is constructed using a unique set of packaging techniques that imposes a limit on the thermal profile the device

can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recom­mended in the industry-standard specification, JEDEC 020 rev. C or later, paragraph 7.6, Table 3 for IR/VPR and convection
reflow. Preheating is required. Hand or wave soldering is not allowed.

Note 2: Specifications over T

A

= -40°C to +85°C are guaranteed by design. Production tests are performed at TA= +25°C.

Note 3: Response time is taken from the time the RF signal is applied to 90% of the final value of V

OUT

.

Note 4: At 800MHz, output voltage is held at a value that nominally results from the final value of +31dBm input power. Deviation from

+31dBm is specified. At 2GHz, output voltage is held at a value that nominally results from +28dBm input power. Deviation
from +28dBm is specified.

Note 5: At 2GHz, output voltage is held 22dB lower than specified in Note 4. At 800MHz, output voltage is held 25dB lower than spec-

ified in Note 4.

Note 6: At 800MHz, output voltage is held at a value that nominally results from +15dBm input power. Deviation from +15dBm is

specified. At 2GHz, output voltage is held at a value that nominally results from +13dBm input power. Deviation from +13dBm
is specified.

Note 7: For MAX2206, the output voltage is held at 40dB lower input power than specified in Note 6; for MAX2207/MAX2208, output

voltage is held at a value that nominally results from 25dB lower input power than specified in Note 6. Deviation from the
nominal input power is specified.

AC ELECTRICAL CHARACTERISTICS (MAX2206/MAX2207/MAX2208)

(MAX2206/MAX2207/MAX2208 EV kit, VCC= +2.7V to +5.0V, SHDN = 2.0V, fRF= 800MHz to 2GHz, 50Ω system, TA= -40°C to
+85°C. Typical values are at V

CC

= +2.85V and TA= +25°C, unless otherwise noted.) (Note 2)

Typical Operating Characteristics

(MAX2206/MAX2207/MAX2208 EV kit, TA = +25°C, unless otherwise noted.)

0

0.4

0.2

0.8

0.6

1.2

1.0

1.4

1.8

1.6

2.0

-25 -15 -10-20 -5 0 5 10 15

MAX2206

OUTPUT VOLTAGE vs. INPUT POWER

MAX2205/06/07/08 toc01

POWER (dBm)

OUTPUT VOLTAGE (V)

VCC = +2.7V to +3.5V
f

RF

= 800MHz

T

A

= -40°C TO +85°C

VCC = +3.5V
T

A

= +85°C

VCC = +2.7V
T

A

= -40°C

0

0.4

0.2

0.8

0.6

1.0

1.2

1.4

1.6

-25 -15 -10-20 -5 0 5 10 15

MAX2206

OUTPUT VOLTAGE vs. INPUT POWER

MAX2205/06/07/08 toc02

POWER (dBm)

OUTPUT VOLTAGE (V)

VCC = +2.7V to +3.5V
f

RF

= 2GHz

T

A

= -40°C TO +85°C

VCC = +3.5V
T

A

= +85°C

VCC = +2.7V
T

A

= -40°C

265

270

275

280

285

290

295

300

305

310

315

320

-40 -15 10 35 60 85

MAX2206

RESPONSE TIME vs. TEMPERATURE

MAX2205/06/07/08 toc03

TEMPERATURE (°C)

RESPONSE TIME (ns)

VCC = +2.7V

VCC = +3.5V

VCC = +3.0V

fRF = 900MHz
P

IN

= +15dBm

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RF Input Frequency f

RF Input VSWR VSWR 2:1

Turn-On Time t

Response Time (Note 3) t

Variation Due to Temperature

RF

ON

MAX2206/MAX2207 300 ns

R

MAX2208 15 µs

V

= +2.85V,

CC

= -40°C to +85°C

T

A

H i g h i np ut p ow er ( N ote 6) ±0.3 ±1

Low i np ut p ow er ( N ote 7) ±1.3 ±2.5

800 2000 MHz

2µs

dB

MAX2205–MAX2208

RF Power Detectors in UCSP

4 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(MAX2206/MAX2207/MAX2208 EV kit, TA = +25°C, unless otherwise noted.)

Pin Description

MAX2207/MAX2208

OUTPUT VOLTAGE vs. INPUT POWER

2.5
VCC = +2.7V to +3.5V

= 800MHz

f

RF

= -40°C TO +85°C

T

A

2.0

1.5

1.0

OUTPUT VOLTAGE (V)

VCC = +3.5V

= +85°C

T

A

0.5

0

-10 0-5 5 10 15
POWER (dBm)

VCC = +2.7V

= -40°C

T

A

1.8

1.6

1.4

MAX2205/06/07/08 toc04

1.2

1.0

0.8

0.6

OUTPUT VOLTAGE (V)

0.4

0.2

0

-10 0-5 5 10 15

MAX2207/MAX2208

OUTPUT VOLTAGE vs. INPUT POWER

VCC = +2.7V to +3.5V

= 2GHz

f

RF

= -40°C TO +85°C

T

A

VCC = +3.5V

= +85°C

T

A

POWER (dBm)

MAX2205/MAX2208

RESPONSE TIME vs. TEMPERATURE

19

18

17

16

15

VCC = +3.0V

14

13

RESPONSE TIME (µs)

12

11

10

-40 10-15 356085

fRF = 900MHz

= +15dBm (MAX2208)

P

IN

= +31dBm (MAX2205)

P

IN

VCC = +3.5V

TEMPERATURE (°C)

VCC = +2.7V

2.5

2.0

MAX2205/06/07/08 toc07

1.5

1.0

OUTPUT VOLTAGE (V)

0.5

OUTPUT VOLTAGE vs. INPUT POWER

VCC = +2.7V to +3.5V

= 836MHz

f

RF

= -40°C to +85°C

T

A

MAX2205 EV KIT

0

61611 21 26 31

MAX2205

VCC = +3.5V

= +85°C

T

A

INPUT POWER (dBm)

VCC = +2.7V

= -40°C

T

A

VCC = +2.7V

= -40°C

T

A

310

305

300

MAX2205/06/07/08 toc05

295

290

RESPONSE TIME (ns)

285

280

275

0.8

0.7

0.6

MAX2205/06/07/08 toc08

0.5

0.4

0.3

OUTPUT VOLTAGE (V)

0.2

0.1

RESPONSE TIME vs. TEMPERATURE

MAX2207

fRF = 900MHz

= +15dBm

P

IN

VCC = +2.7V

VCC = +3.0V

VCC = +3.5V

-40 10-15 35 60 85
TEMPERATURE (°C)

MAX2205

OUTPUT VOLTAGE vs. INPUT POWER

VCC = +2.7V to +3.5V

= 1880MHz

f

RF

= -40°C to +85°C

T

A

MAX2205 EV KIT

VCC = +3.5V

= +85°C

T

A

VCC = +2.7V

= -40°C

T

A

0

6141810 22 26

INPUT POWER (dBm)

MAX2205/06/07/08 toc06

MAX2205/06/07/08 toc09

PIN NAME FUNCTION

A1 RFIN/SHDN

A2 V

CC

B1 GND

B2 OUT Detector Output

RF Input and Shutdown Logic Input. AC-couple the RF input to this pin and apply the shutdown logic
input through a resistor. Drive low to turn the part off, drive high, or connect to V

CC

Power-Supply Pin. Bypass to GND with a capacitor as close to the bump as possible.

Ground Connection. Multiple ground vias placed as close to the IC as possible should be used to
connect the ground pin to the ground plane. Connect to PC board ground plane with as low
inductance as possible.

to turn the part on.

Applications Information

The MAX2205–MAX2208 have internal termination
resistors for use with directional couplers. The applica­tion circuit is shown in Figure 1. The output of the
detector goes to an op amp in an analog GSM power­control scheme, or to an ADC in other systems such as
TDMA or discrete-time GSM power control.

The MAX2205 has high-input impedance for use with
high-value resistive tapping from a CDMA power ampli­fier. This coupling method is the lowest cost and lowest
loss when used with an isolator. The application circuit
is shown in Figure 2. Connect C

FILTER

from the
MAX2205 output to GND to reduce residual amplitude
ripple. For IS98A reverse channel signal with peak-to­avg ratio of 3.9dB, a 1.5nF capacitor gives 43mV

P-P

rip­ple at 28dBm PA output and 390µs response time. For
CDMA2000 (pilot + DCCH) with peak-to-avg ratio of

5.4dB, the ripple is about 65mV

P-P

at 26dBm PA output.

The MAX2205 input impedance is listed in Table 1.

Layout

As with any RF circuit, the layout of the MAX2205–
MAX2208 circuits affects performance. Use a short
50Ω line at the input with multiple ground vias along the
length of the line. The input capacitor and resistor
should be placed as close to the IC as possible. The
VCCinput should be bypassed as close as possible to
the IC with multiple vias connecting the capacitor to
ground. Refer to the MAX2205–MAX2208 EV kit data
sheet for a sample layout and details.

UCSP Reliability

The UCSP is a unique package that greatly reduces
board space compared to other packages. UCSP relia­bility is integrally linked to the user’s assembly methods,
circuit board material, and usage environment. The user
should closely review these areas when considering
using a UCSP. This form factor might not perform equally
to a packaged product through traditional mechanical
reliability tests. Performance through operating life test
and moisture resistance remains uncompromised, as it
is determined primarily by the wafer-fabrication process.

Mechanical stress performance is a greater considera­tion for a UCSP. UCSP solder-joint contact integrity must
be considered because the package is attached through
direct solder contact to the user’s PC board. Testing
done to characterize the UCSP reliability performance
shows that it is capable of performing reliably through
environmental stresses. Results of environmental stress
tests and additional usage data and recommendations
are detailed in the UCSP application note, which can be
found on Maxim’s website, www.maxim-ic.com.

Chip Information

TRANSISTOR COUNT: 344

MAX2205–MAX2208

RF Power Detectors in UCSP

_______________________________________________________________________________________ 5

Figure 2. MAX2205 Typical Application Circuit

Figure 1. MAX2206/MAX2207/MAX2208 Typical Application
Circuit

PA

COUPLER

TO ANT

50Ω

TO ADC

OR OP AMP

MAX2206
MAX2207
MAX2208

PEAK

DETECTOR

ISOLATOR/

CIRCULATOR

PA

680

Ω

47pF

MAX2205

PEAK

DETECTOR

C

TO ANT

TO ADC

FILTER

MAX2205–MAX2208

RF Power Detectors in UCSP

6 _______________________________________________________________________________________

Table 2. MAX2205–MAX2208 Device
Marking Codes

Table 1. MAX2205 Input Impedance (R || jX, PC Board De-Embedded)

FREQUENCY (GHz)

0.8 189.9 -51.7 199.4 -54.0

0.9 177.3 -47.4 185.5 -49.4

1.0 165.8 -43.6 175.2 -45.7

1.1 155.2 -40.3 167.0 -42.5

1.2 146.4 -37.6 158.8 -39.8

1.3 138.8 -35.0 150.9 -37.3

1.4 131.5 -32.9 144.0 -35.1

1.5 123.3 -30.7 139.4 -33.3

1.6 115.0 -29.1 131.6 -31.8

1.7 107.2 -27.5 132.0 -30.9

1.8 110.7 -26.7 126.6 -29.3

1.9 105.3 -25.2 120.3 -27.9

2.0 94.7 -23.6 111.4 -26.7

REAL IMAG REAL IMAG

PIN = -30dBm PIN = +5dBm

DEVICE CODE

MAX2205EBS AFR

MAX2206EBS AFO

MAX2207EBS AFP

MAX2208EBS AFQ

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 7

© 2006 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.

MAX2205–MAX2208

RF Power Detectors in UCSP

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages

.)

Revision History

Pages changed at Rev 6: 1, 2, 3, 7

4L, UCSP 2x2.EPS

PACKAGE OUTLINE, 2x2 UCSP

21-0117

1

G

1