MAXIM MAX4003 Technical data

General Description

The MAX4003 low-cost, low-power logarithmic amplifier
is designed to detect the power levels of RF power
amplifiers (PAs) operating from 100MHz to 2500MHz. A
typical dynamic range of 45dB makes this logarithmic
amplifier useful in a variety of wireless applications
including cellular handset PA control, TSSI for wireless
terminal devices, and other transmitter power measure­ments. This logarithmic amplifier provides much wider
measurement range and superior accuracy than typical
diode-based detectors. Excellent temperature stability is
achieved over the full operating range of -40°C to +85°C.

The MAX4003 logarithmic amplifier is a voltage-mea­suring device with a typical signal range of -58dBV to

-13dBV. The input signal is internally AC-coupled by an
on-chip 5pF capacitor in series with a 2kΩ resistance.
This highpass coupling, with a corner at 16MHz, sets
the lowest operating frequency and allows the input
signal source to be DC grounded. The MAX4003 also
features a power-on delay, which holds the detector
output (OUT) low for approximately 5µs to ensure
glitchless controller output.

The MAX4003 is available in an 8-bump chip-scale pack­age (UCSP™), an 8-pin µMAX package, and an 8-pin thin
QFN package. The device consumes 5.9mA with a 3.0V
supply and only 13µA when the device is in shutdown.

Applications

Cellular Handsets (TDMA, CDMA, GPRS, GSM)

TSSI for Wireless Terminal Devices

Transmitter Power Measurement and Control

RSSI for Fiber Modules

Features

♦ Complete RF Detector

♦ Frequency Range from 100MHz to 2500MHz

♦ Input Range of -58dBV to -13dBV

(-45dBm to 0dBm into 50Ω)

♦ Fast Response: 70ns in 10dB Steps

♦ Low-Current Consumption: 5.9mA at V

CC

= 3.0V

♦ 13µA (typ) Shutdown Current

♦ Available in 8-Bump UCSP or 8-Pin µMAX and

Thin QFN Packages

MAX4003

100MHz to 2500MHz, 45dB RF Detector

in a UCSP

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

10dB

DET

10dB 10dB10dB

DET

DET DETDET

OFFSET

COMP

LOW-

NOISE

BANDGAP

OUTPUT
ENABLE

DELAY

GND

g

m

+

-

1X

V-I

RFIN

V

CC

SHDN

OUT

CLPF

MAX4003

Functional Diagram

19-2620; Rev 1; 3/03

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.

PART

TEMP RANGE

PIN/BUMP­PACKAGE

TOP

MARK

MAX4003EBL-T

8 UCSP-8 ABV

MAX4003EUA

8 µMAX —

MAX4003ETA-T

ADG

Pin Configurations

MAX4003

1

2

3

4

8

7

6

5

V

CC

OUT

N.C.

GND

CLPF

A

123

B

C

GND

RFIN

µMAX

SHDN

RFIN GND

V

CC

CLPF

V

CC

OUT GND

SHDN

MAX4003

UCSP

TOP VIEW
(BUMPS ON BOTTOM)

TOP VIEW

UCSP is a trademark of Maxim Integrated Products, Inc.

Pin Configurations continued at end of data sheet.

EVALUATION KIT

AVAILABLE

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C8 Thi n QFN - E P

MAX4003

100MHz to 2500MHz, 45dB RF Detector
in a UCSP

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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 +5.25V

SHDN, CLPF to GND..................................-0.3V to (VCC+ 0.3V)

RFIN..................................................................................+6dBm

OUT Short Circuit to GND.......................................................10s

Continuous Power Dissipation (T

A

= +70°C)

8-Bump UCSP (derate 4.7mW/°C above +70°C).........379mW

8-Pin µMAX (derate 4.5mW/°C above +70°C) .............362mW

8-Pin Thin QFN (derate 24.4mW/°C above +70°C) ...1951mW

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

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

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

DC ELECTRICAL CHARACTERISTICS

(VCC= 3.0V, V

SHDN

= VCC, C

CLPF

= 0.1µF, TA= -40°C to +85°C. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage V

CC

2.7 5.0 V

V

SHDN

= 1.8V 5.9 10 mA

Supply Current I

CC

VCC = 5.0V

V

SHDN

= 0.8V 13 30 µA

V

SHDN

= 3.0V 5 20

Shutdown Input Current I

SHDN

V

SHDN

= 0V

±5

µA

Logic High Threshold Voltage V

IH

1.8 V

Logic Low Threshold Voltage V

IL

0.8 V

DETECTOR OUTPUT

RFIN = 0dBm

Voltage Range V

OUT

RFIN = -45dBm

V

Output Voltage in Shutdown V

OUT

V

SHDN

= 0V 1 mV

Output-Referred Noise fo =150kHz 8

nV/√Hz

Small-Signal Bandwidth BW C

CLPF

= 150pF 8 MHz

Slew Rate V

OUT

= 0.36V to 1.45V, C

CLPF

= 150pF 5 V/µs

-0.01

1.45

0.36

MAX4003

100MHz to 2500MHz, 45dB RF Detector

in a UCSP

_______________________________________________________________________________________ 3

Note 1: All devices are 100% production tested at TA= +25°C and are guaranteed by design for TA= -40°C to +85°C as specified.

All production AC tests are done at 100MHz.

Note 2: Typical minimum and maximum range of the detector.

AC ELECTRICAL CHARACTERISTICS

(VCC= 3.0V, V

SHDN

= VCC, C

CLPF

= 0.1µF, fRF= 100MHz to 2500MHz, TA= -40°C to +85°C. Typical values are at TA= +25°C,

unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RF Input Frequency Range f

RF

MHz

RF Input Voltage Range V

RF

(Note 2) -58 -13 dBV

Equivalent RF Input Power Range

P

RF

With 50Ω termination (Note 2) -45 0

dBm

fRF = 100MHz, TA = +25°C

fRF = 100MHz

fRF = 900MHz

Logarithmic Slope

f

RF

= 1900MHz

mV/dB

fRF = 100MHz, TA = +25°C

-57

fRF = 100MHz -64 -50

fRF = 900MHz -57

Logarithmic Intercept P

X

fRF = 1900MHz -56

dBm

R

IN

2kΩ

RFIN Input Impedance

C

IN

0.5 pF

OUTPUT VOLTAGE

vs. INPUT POWER (µMAX)

MAX4003 toc01

INPUT POWER (dBm)

V

OUT

(V)

0-10-50 -40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-60 10

2.5GHz

1.9GHz

0.9GHz

0.1GHz

OUTPUT VOLTAGE

vs. INPUT POWER (UCSP)

MAX4003 toc02

INPUT POWER (dBm)

V

OUT

(V)

0-10-30 -20-40-50

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

-60 10

2.5GHz

1.9GHz

0.9GHz

0.1GHz

LOG CONFORMANCE

vs. INPUT POWER (µMAX)

MAX4003 toc03

INPUT POWER (dBm)

ERROR (dB)

0-10-40 -30 -20

-3

-2

-1

0

1

2

3

4

-4

-50 10

2.5GHz

1.9GHz

0.9GHz

0.1GHz

Typical Operating Characteristics

(VCC= V

SHDN

= 3.0V, C

CLPF

= 0.1µF, TA= +25°C, unless otherwise noted.)

100 2500

22.8 25.5 28.2

22.5 28.5

25.0

29.0

-62.3

-51.7

Typical Operating Characteristics (continued)

(VCC= V

SHDN

= 3.0V, C

CLPF

= 0.1µF, TA= +25°C, unless otherwise noted.)

MAX4003

100MHz to 2500MHz, 45dB RF Detector
in a UCSP

4 _______________________________________________________________________________________

LOG CONFORMANCE

vs. INPUT POWER (UCSP)

MAX4003 toc4

INPUT POWER (dBm)

ERROR (dB)

0-10-40 -30 -20

-3

-2

-1

0

1

2

3

4

-4

-50 10

2.5GHz

0.9GHz

0.1GHz

1.9GHz

V

OUT

AND LOG CONFORMANCE

vs. INPUT POWER AT 0.1GHz (µMAX)

MAX4003 toc05

INPUT POWER (dBm)

V

OUT

(V)

0-10-40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-3

-2

-1

0

1

2

3

4

-4

-50 10

TA = +85°C

TA = +25°C

TA = -40°C

ERROR (dB)

V

OUT

AND LOG CONFORMANCE

vs. INPUT POWER AT 0.1GHz (UCSP)

MAX4003 toc06

INPUT POWER (dBm)

V

OUT

(V)

0-10-40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-3

-2

-1

0

1

2

3

4

-4

-50 10

TA = +85°C

TA = +25°C

TA = -40°C

ERROR (dB)

V

OUT

AND LOG CONFORMANCE

vs. INPUT POWER AT 0.9GHz (µMAX)

MAX4003 toc07

INPUT POWER (dBm)

V

OUT

(V)

ERROR (dB)

0-10-40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-3

-2

-1

0

1

2

3

4

-4

-50 10

TA = +85°C

TA = +25°C

TA = -40°C

V

OUT

AND LOG CONFORMANCE

vs. INPUT POWER AT 0.9GHz (UCSP)

MAX4003 toc08

INPUT POWER (dBm)

V

OUT

(V)

0-10-40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-3

-2

-1

0

1

2

3

4

-4

-50 10

TA = +85°C

TA = +25°C

TA = -40°C

ERROR (dB)

V

OUT

AND LOG CONFORMANCE

vs. INPUT POWER AT 1.9GHz (µMAX)

MAX4003 toc09

INPUT POWER (dBm)

V

OUT

(V)

ERROR (dB)

0-10-40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-3

-2

-1

0

1

2

3

4

-4

-50 10

TA = +85°C

TA = +25°C

TA = -40°C

TA = +85°C

TA = +25°C

TA = -40°C

V

OUT

AND LOG CONFORMANCE

vs. INPUT POWER AT 1.9GHz (UCSP)

MAX4003 toc10

INPUT POWER (dBm)

V

OUT

(V)

ERROR (dB)

0-10-40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-3

-2

-1

0

1

2

3

4

-4

-50 10

TA = +85°C

TA = +25°C

TA = -40°C

TA = +85°C

TA = +25°C

TA = -40°C

V

OUT

AND LOG CONFORMANCE

vs. INPUT POWER AT 2.5GHz (µMAX)

MAX4003 toc11

INPUT POWER (dBm)

V

OUT

(V)

ERROR (dB)

0-10-40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-3

-2

-1

0

1

2

3

4

-4

-50 10

TA = +85°C

TA = +25°C

TA = -40°C

TA = +85°C

TA = +25°C

TA = -40°C

V

OUT

AND LOG CONFORMANCE

vs. INPUT POWER AT 2.5GHz (UCSP)

MAX4003 toc12

INPUT POWER (dBm)

V

OUT

(V)

ERROR (dB)

0-10-40 -30 -20

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0.2

-3

-2

-1

0

1

2

3

4

-4

-50 10

TA = +85°C

TA = +25°C

TA = -40°C

TA = +85°C

TA = +25°C

TA = -40°C

Typical Operating Characteristics (continued)

(VCC= V

SHDN

= 3.0V, C

CLPF

= 0.1µF, TA= +25°C, unless otherwise noted.)

MAX4003

100MHz to 2500MHz, 45dB RF Detector

in a UCSP

_______________________________________________________________________________________ 5

LOG SLOPE vs. FREQUENCY (µMAX)

MAX4003 toc13

FREQUENCY (GHz)

LOG SLOPE (mV/dB)

2.01.51.00.5

25

26

27

28

29

30

31

24

0 2.5

TA = +25°C

TA = -40°C

TA = +85°C

LOG SLOPE vs. FREQUENCY (UCSP)

MAX4003 toc14

FREQUENCY (GHz)

LOG SLOPE (mV/dB)

2.01.51.00.5

25

26

27

28

29

30

31

24

0 2.5

TA = +25°C

TA = +85°C

TA = -40°C

LOG SLOPE vs. SUPPLY VOLTAGE (µMAX)

MAX4003 toc15

VCC (V)

LOG SLOPE (mV/dB)

5.04.53.0 3.5 4.0

25

26

27

28

29

30

31

32

24

2.5 5.5

2.5GHz

1.9GHz

0.9GHz

0.1GHz

LOG SLOPE (mV/dB)

LOG SLOPE vs. SUPPLY VOLTAGE (UCSP)

5.04.54.03.53.02.5 5.5

MAX4003 toc16

25

26

27

28

29

30

31

32

24

V

CC

(V)

0.9GHz

2.5GHz

1.9GHz

0.1GHz

LOG INTERCEPT vs. FREQUENCY (µMAX)

MAX4003 toc17

FREQUENCY (GHz)

LOG INTERCEPT (dBm)

2.01.51.00.5

-58

-57

-56

-55

-54

-53

-52

-51

-50

-59
0 2.5

TA = +25°C

TA = -40°C

TA = +85°C

LOG INTERCEPT (dBm)

-60

-59

-58

-57

-56

-55

-61

LOG INTERCEPT vs. FREQUENCY (UCSP)

2.01.51.00.50 2.5

MAX4003 toc18

FREQUENCY (GHz)

TA = +85°C

TA = +25°C

TA = -40°C

LOG INTERCEPT

vs. SUPPLY VOLTAGE

(µMAX)

MAX4003 toc19

VCC (V)

LOG INTERCEPT (dBm)

5.04.54.03.53.0

-59

-58

-57

-56

-55

-54

-53

-52

-51

-50

-49

-60

2.5 5.5

2.5GHz

1.9GHz

0.9GHz

0.1GHz

5.04.54.03.53.02.5 5.5

MAX4003 toc20

-60

-59

-58

-57

-56

-55

-61

V

CC

(V)

LOG INTERCEPT (dBm)

LOG INTERCEPT

vs. SUPPLY VOLTAGE (UCSP)

1.9GHz

2.5GHz

0.1GHz

0.9GHz

RFIN INPUT IMPEDANCE
vs. FREQUENCY (µMAX)

MAX4003 toc21

FREQUENCY (GHz)

RESISTANCE (Ω)

REACTANCE (Ω)

2.01.51.00.5

500

1000

1500

R

X

2000

2500

0

-400

-300

-200

-100

0

-500

-600

-700

-800

0 2.5

FREQUENCY (GHz) R JX

Ω

0.1 2100 -794

0.9 500 -91

1.9 52 -35

2.5 27 -366

MAX4003

100MHz to 2500MHz, 45dB RF Detector
in a UCSP

6 _______________________________________________________________________________________

OUTPUT NOISE SPECTRAL DENSITY

MAX4003 toc26

FREQUENCY (Hz)

NOISE SPECTRAL DENSITY (nV/√Hz)

1k 10k 100k 1M

10

1

100 10M

9
8

7
6

5

4

3

2

MAXIMUM OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE

MAX40003 toc27

VCC (V)

V

OUT

(V)

5.04.53.0 3.5 4.0

1.54

1.56

1.58

1.60

1.62

1.64

1.66

1.68

1.52

2.5 5.5

fRF = 900MHz, P

RFIN

= +5dBm

I

LOAD

= 0mA, 5mA, 10mA

RFIN INPUT IMPEDANCE

vs. FREQUENCY (UCSP)

MAX4003 toc22

FREQUENCY (GHz)

RESISTANCE (Ω)

REACTANCE (Ω)

2.01.51.00.5

500

1000

1500

R

X

2000

2500

0

-400

-300

-200

-100

0

-500

-600

-700

-800

02.5

FREQUENCY (GHz) R JX

Ω

0.1 1916 -839

0.9 909 -125

1.9 228 -48

2.5 102 -29

SUPPLY CURRENT

vs. SHUTDOWN VOLTAGE

MAX4003 toc23

V

SHDN

(V)

SUPPLY CURRENT (mA)

1.81.61.41.21.00.80.60.40.2

0

1

2

3

4

5

6

7

-1
0 2.0

POWER-ON RESPONSE TIME

MAX4003 toc24

2µs/div

V

OUT

500mV/div

1.5V/div

V

SHDN

5µs

POWER-DOWN RESPONSE TIME

MAX4003 toc25

2µs/div

V

OUT

500mV/div

1.5V/div

V

SHDN

Typical Operating Characteristics (continued)

(VCC= V

SHDN

= 3.0V, C

CLPF

= 0.1µF, TA= +25°C, unless otherwise noted.)

MAX4003

100MHz to 2500MHz, 45dB RF Detector

in a UCSP

_______________________________________________________________________________________ 7

MINIMUM OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE

MAX4003 toc28

VCC (V)

V

OUT

(V)

5.04.54.03.53.0

0.33

0.34

0.35

0.36

0.37

0.38

0.39

0.40

0.41

0.32

2.5 5.5

fRF = 900MHz, P

RFIN

= -50dBm

I

LOAD

= 0mA, 5mA, 10mA

SMALL-SIGNAL STEP RESPONSE

(C

CLPF

= 150pF)

MAX4003 toc29

1µs/div

550

500

450

400

V

OUT

(mV)

350

300

250

fRF = 900MHz

100mV

P-P

SMALL-SIGNAL STEP RESPONSE

(C

CLPF

= 1000pF)

MAX4003 toc30

1µs/div

550

500

450

400

V

OUT

(mV)

350

300

250

fRF = 900MHz

100mV

P-P

LARGE-SIGNAL STEP RESPONSE

(C

CLPF

= 150pF)

MAX4003 toc31

1µs/div

1600

1400

1200

1000

V

OUT

(mV)

800

600

400

fRF = 900MHz

1V

P-P

LARGE-SIGNAL STEP RESPONSE

(C

CLPF

= 1000pF)

MAX4003 toc32

1µs/div

1600

1400

1200

1000

V

OUT

(mV)

800

600

400

fRF = 900MHz

1V

P-P

10

0.1
100 10,000 100,000

1

C

CLPF

(pF)

FREQUENCY (MHz)

1000

SMALL-SIGNAL BANDWIDTH

vs. C

CLPF

MAX4003 toc33

Typical Operating Characteristics (continued)

(VCC= V

SHDN

= 3.0V, C

CLPF

= 0.1µF, TA= +25°C, unless otherwise noted.)

MAX4003

100MHz to 2500MHz, 45dB RF Detector
in a UCSP

8 _______________________________________________________________________________________

Detailed Description

The MAX4003 logarithmic amplifier comprises four
main amplifier/limiter stages, each with a small-signal
gain of 10dB. The output stage of each amplifier/limiter
stage is applied to a full-wave rectifier (detector). A
detector stage also precedes the first stage. In total,
five detectors, each separated by 10dB, comprise the
logarithmic amplifier strip (see Functional Diagram).

A portion of the PA output power is coupled into RFIN
of the logarithmic amplifier detector through a direction­al coupler, and is applied to the logarithmic amplifier
strip. Each detector stage generates a rectified current,
and these currents are summed to form a logarithmic
function. The detected output is applied to a high-gain
transconductance (gm) stage, which is buffered and
then applied to OUT. OUT is applied to an ADC typical­ly found in the baseband IC which, in turn, controls the

PA biasing with its DAC output (Figure 1).

In a control loop, the detector output voltage range is
approximately 0.36V for the minimum input signal,

-45dBm, to 1.45V at the maximum input range, 0dBm.
The logarithmic intercept of the detector output with
respect to the RF input can be obtained by drawing a
best fit line of the Output Voltage vs. RF Input Power
graph. The logarithmic slope is defined as the change
in the detector output vs. the change in RF input. The
MAX4003 slope at low frequencies is approximately

25.5mV/dB. Variation in temperature and supply volt­age does not alter the slope significantly, as shown in
the Typical Operating Characteristics.

Applications Information

Filter Capacitor and Transient Response

In general, the choice of filter only partially determines
the time-domain response of a PA detector loop.
However, some simple conventions may be applied to
discuss transient response. A large filter capacitor,
C

CLPF

, dominates time-domain response, but the loop
bandwidth remains a factor of the PA gain-control range
(see Typical Operating Characteristics). The bandwidth
is maximized at power outputs near the center of the
PA’s range and minimized at the low and high power lev­els, when the slope of the gain control curve is lowest.

A smaller valued C

CLPF

results in an increased-loop
bandwidth inversely proportional to the capacitor value.
Inherent phase lag in the PA’s control path, usually
caused by parasitics at the OUT pin, ultimately results
in the addition of complex poles in the AC loop equa­tion. To avoid this secondary effect, experimentally
determine the lowest usable C

CLPF

for the power ampli-

V

CC

OUT

N.C.

GNDCLPF

GND

RFIN

MAX4003

SHDN

V

CC

XX

PA

50Ω

50Ω

C

CLPF

0.01µF

TRANSMITTER

DAC

ADC

BASEBAND

IC

Figure 1. MAX4003 Typical Application Circuit

Pin Description

PIN

µMAX/

Thin QFN

NAME

DESCRIPTION

1A1RFIN RF Input. Requires off-chip 50Ω impedance match.

2A2

Shutdown Input. A logic LOW on SHDN shuts down the entire IC.

3, 5

GND Ground. Connect to PC board ground plane.

4B3CLPF

Lowpass Filter Connection. Connect external capacitor between CLPF and GND to set the
control-loop bandwidth.

6—N.C. No Connection. Leave this pin unconnected or connect to GND.

7C2OUT Detector Output. Connect this buffer output to baseband ADC.

8

V

CC

Supply Voltage. Bypass with capacitor as close to the pin as possible. The bypass capacitor
must not share its ground vias with any other branches.

UCSP

SHDN

A3, C3

B1, C1

MAX4003

100MHz to 2500MHz, 45dB RF Detector

in a UCSP

_______________________________________________________________________________________ 9

fier of interest. This requires full consideration of the
intricacies of the PA detector control function. The
worst-case condition, where the PA output is smallest
(gain function is steepest), should be used because the
PA control function is nonlinear. An additional zero can
be added to improve loop dynamics by placing a resis­tor in series with C

CLPF

.

Waveform Considerations

Although the input level of the MAX4003 is specified in
dBm, the logarithmic amplifier actually responds to rec­tified voltage signals rather than a true RMS power. It is
important to realize that input signals with identical root­mean-square power but with unique waveforms result
in different logarithmic outputs.

Differing signal waveforms result in either an upward or
downward shift in the logarithmic intercept. However,
the logarithmic slope remains the same.

Layout Considerations

As with any RF circuit, the MAX4003 circuit layout
affects performance. To ensure maximum power trans­fer between 50Ω sources and the MAX4003 input, suit­able matching networks should be implemented. The
VCCinput should be bypassed as close as possible to
the device with multiple vias connecting the capacitor
to the ground plane.

UCSP Reliability

The UCSP represents 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 use of a UCSP. This form factor may 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 primarily determined by the
wafer fabrication process. Mechanical stress perfor­mance is a greater consideration for a UCSP. UCSP
solder joint contact integrity must be considered since
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 can per­form reliably through environmental stresses. Results of
environmental stress tests and additional usage data
and recommendations are detailed in the UCSP
application note found on Maxim’s website,
www.maxim-ic.com.

Chip Information

TRANSISTOR COUNT: 358

Pin Configurations (continued)

THIN QFN

TOP VIEW

MAX4003

N.C.

GND

87V

CC

OUT

6

5

CLPF

1

2SHDN

GND

RFIN

3

4

MAX4003

100MHz to 2500MHz, 45dB RF Detector
in a UCSP

10 ______________________________________________________________________________________

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

.)

8LUMAXD.EPS

PACKAGE OUTLINE, 8L uMAX/uSOP

1

1

21-0036

J

REV.DOCUMENT CONTROL NO.APPROVAL

PROPRIETARY INFORMATION

TITLE:

MAX

0.043

0.006

0.014

0.120

0.120

0.198

0.026

0.007

0.037

0.0207 BSC

0.0256 BSC

A2

A1

c

e

b

A

L

FRONT VIEW

SIDE VIEW

E H

0.6±0.1

0.6±0.1

Ø0.50±0.1

1

TOP VIEW

D

8

A2

0.030

BOTTOM VIEW

1

6°

S

b

L

H

E

D

e

c

0°

0.010

0.116

0.116

0.188

0.016

0.005

8

4X S

INCHES

-

A1

A

MIN

0.002

0.950.75

0.5250 BSC

0.25 0.36

2.95 3.05

2.95 3.05

4.78

0.41

0.65 BSC

5.03

0.66
6°0°

0.13 0.18

MAX

MIN

MILLIMETERS

- 1.10

0.05 0.15

α

α

DIM

MAX4003

100MHz to 2500MHz, 45dB RF Detector

in a UCSP

______________________________________________________________________________________ 11

Package Information (continued)

(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

.)

6, 8, &10L, DFN THIN.EPS

COMMON DIMENSIONS

SYMBOL MIN. MAX.

A 0.70 0.80

D 2.90 3.10

E 2.90 3.10

A1

0.00 0.05

L 0.20 0.40

PKG. CODE N D2 E2 e JEDEC SPEC b

[(N/2)-1] x e

PACKAGE VARIATIONS

0.25 MIN.k

A2 0.20 REF.

2.00 REF0.25±0.050.50 BSC2.30±0.1010T1033-1

2.40 REF0.20±0.05- - - - 0.40 BSC1.70±0.10 2.30±0.1014T1433-1

1.50±0.10 MO229 / WEED-3

0.40 BSC - - - - 0.20±0.05 2.40 REFT1433-2 14 2.30±0.101.70±0.10

T633-2 6 1.50±0.10 2.30±0.10 0.95 BSC MO229 / WEEA 0.40±0.05 1.90 REF

T833-2 8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF

T833-3 8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF

2.30±0.10 MO229 / WEED-3 2.00 REF0.25±0.050.50 BSC1.50±0.1010T1033-2

MAX4003

100MHz to 2500MHz, 45dB RF Detector
in a UCSP

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.

12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

Package Information (continued)

(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

.)

9LUCSP, 3x3.EPS

PACKAGE OUTLINE, 3x3 UCSP

21-0093

1

1

K