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MAX4003

更新时间： 2023-12-20 18:45:29
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亚德诺 - ADI /
页数 文件大小 规格书
12页 500K
描述
100MHz至2500MHz、45dB RF检测器，UCSP封装

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中文翻译

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MAX4003 数据手册

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19-2620; Rev 1; 3/03  
100MHz to 2500MHz, 45dB RF Detector  
in a UCSP  
General Description  
Features  
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 measure-  
ments. 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.  
♦ 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  
♦ 13µA (typ) Shutdown Current  
= 3.0V  
CC  
♦ Available in 8-Bump UCSP or 8-Pin µMAX and  
The MAX4003 logarithmic amplifier is a voltage-mea-  
suring 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.  
Thin QFN Packages  
Ordering Information  
PIN/BUMP-  
PACKAGE  
TOP  
MARK  
PART  
TEMP RANGE  
MAX4003EBL-T -40 C to +85 C 8 UCSP-8  
MAX4003EUA -40 C to +85 C 8 µMAX  
MAX4003ETA-T -40 C to +85 C 8 Thin QFN-EP  
ABV  
—
ADG  
Pin Configurations  
The MAX4003 is available in an 8-bump chip-scale pack-  
age (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.  
TOP VIEW  
(BUMPS ON BOTTOM)  
TOP VIEW  
1
2
3
RFIN  
SHDN  
GND  
1
2
3
4
V
CC  
8
7
6
5
Applications  
A
B
C
RFIN  
SHDN  
GND  
OUT  
N.C.  
GND  
Cellular Handsets (TDMA, CDMA, GPRS, GSM)  
TSSI for Wireless Terminal Devices  
Transmitter Power Measurement and Control  
RSSI for Fiber Modules  
MAX4003  
MAX4003  
V
V
CLPF  
GND  
CC  
CC  
CLPF  
OUT  
µMAX  
UCSP  
UCSP is a trademark of Maxim Integrated Products, Inc.  
Pin Configurations continued at end of data sheet.  
Functional Diagram  
OUTPUT  
ENABLE  
DELAY  
SHDN  
V
CC  
+
-
g
1X  
OUT  
m
DET  
DET  
DET  
DET  
DET  
CLPF  
RFIN  
10dB  
10dB  
10dB  
10dB  
V-I  
LOW-  
NOISE  
BANDGAP  
OFFSET  
COMP  
MAX4003  
GND  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...12

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