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MAX4003

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

Industry's Smallest Quad-Band, 2.5GHz, 45dB RF Power Amplifier Detector Saves 80% Board Space

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
MAX4003	Active: In Production. See Ordering Information for details.

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.

Data Sheet

Download	Rev 1	(PDF, 508kB)
E-Mail

An evaluation kit is available: MAX4003EVKIT

Key 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

Applications/Uses

Cellular Handsets (TDMA, CDMA, GPRS, GSM)
RSSI for Fiber Modules
Transmitter Power Measurement and Control
TSSI for Wireless Terminal Devices

Key Specifications:

RF Power Detectors

Part Number

Detector Type

Dynamic Range
(dB)

V_CC
(V)

I_SUPPLY
(mA)

RF Freq.
(MHz)

P_RF
(dBm)

Footprint
(mm x mm)

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

50Ω Term

max w/pins

See Notes

MAX4003

Log. Amp.

2.7 to 5.5

5.9

100

2500

-45 to 0

1.5 x 1.5

3.0 x 3.0

3.0 x 3.5

-40 to +85

9.6

See All RF Power Detectors (19)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Application Circuit

Application Notes

Application Note 3611

Integrated DC Logarithmic Amplifiers

Product Guides

Amplifiers and Comparators (PDF)

Reliability Reports

Reliability Report:	MAX4003.pdf
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Software/Models

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Ordering Information

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Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4003EBL+T			Active		UCSP;8 pin;2.5 mm² Outline Drawing:21-0093 (PDF) Land Pattern: Not Available Use pkgcode/variation: B9+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4003EBL-T		N/A	No Longer Available	MAX4003EBL+T	UCSP;8 pin;2.5 mm² Outline Drawing:21-0093 (PDF) Land Pattern: Not Available Use pkgcode/variation: B9-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4003ETA+			Active		TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4003ETA+T			Active		TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4003ETA-T			Active		TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4003EUA			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4003EUA+			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4003EUA+T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4003EUA-C1D			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4003EUA-T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4003EUA/GH9			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4003EUA/GH9-T			Active		µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Evaluation Kits

MAX4003EVKIT

Evaluation Kit for the MAX4003

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