Datasheet > ADL5903ACPZN-R7

ADL5903ACPZN-R7

更新时间： 2024-11-14 20:00:07

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描述
200 MHz to 6 GHz 35 dB TruPwr™ Detector

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数据手册

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ADL5903ACPZN-R7 数据手册

200 MHz to 6 GHz

35 dB TruPwr™ Detector

Data Sheet

ADL5903

FEATURES

FUNCTIONAL BLOCK DIAGRAM

VPOS

CREG

Accurate rms-to-dc conversion from 200 MHz to 6 GHz

Measurement dynamic range of 35 dB

Ripple-free transfer function

Single-ended input, 50 Ω source compatible

No external matching required

Waveform and modulation independent, such as

GSM/CDMA/W-CDMA/TD-SCDMA/LTE

ADL5903

INTERNAL

FILTERING

ENBL

RFIN

630pF

1kΩ

CRMS

VRMS

4pF

100Ω

RMS CORE

BUFFER

Linear in decibels output, scaled 35.5 mV/dB at 900 MHz

Excellent temperature stability

GND

NIC

Operates from 3.0 V to 5.0 V from −55°C to +125°C

Low power consumption: 3 mA at 3.0 V to 5.0 V supply

8-lead, 2 mm × 2 mm LFCSP package

Figure 1.

APPLICATIONS

Power amplifier linearization/control loops

Transmitter power controls

Transmitter signal strength indication (TSSI)

RF instrumentation

Wireless repeaters

GENERAL DESCRIPTION

The ADL5903 is a true rms responding power detector that has

a 35 dB measurement range. It features low power consumption

and an intrinsically ripple-free error transfer function.

The ADL5903 can be used to determine the true power of a

high frequency signal with a complex modulation envelope

including large crest factor signals such as GSM, CDMA,

W-CDMA, TD-SCDMA, and LTE modulated signals. The

output is then proportional to the logarithm of the rms value

of the input. In other words, the reading is presented directly

in decibels and is scaled about 35.5 mV/dB at 900 MHz.

The ADL5903 provides a solution in a variety of high frequency

systems requiring an accurate measurement of signal power.

Requiring only a single supply of 3.0 V to 5.0 V and a few

capacitors, it is easy to use and capable of being driven single-

ended or with a balun for differential input drive. An on-chip

matching network provides good return loss over the specified

frequency range of the device. The ADL5903 can operate from

200 MHz to 6 GHz and can accept inputs from −30 dBm to

+20 dBm.

The ADL5903 has low power consumption when operational

and a disable mode that further reduces the power consumption.

Power consumption is less than 100 µA when the ADL5903

enters power-down mode through a logic low at Pin ENBL.

The ADL5903 is supplied in a 2 mm × 2 mm, 8-lead LFCSP for

operation over the wide temperature range of −55°C to +125°C.

Rev. B

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

www.analog.com

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与ADL5903ACPZN-R7相关器件

型号	品牌	获取价格	描述	数据表
ADL5903-EVALZ	ADI	获取价格	200 MHz to 6 GHz 35 dB TruPwrâ¢ Detector
ADL5903SCPZN-R2	ADI	获取价格	IC,POWER METERING,BICMOS,LLCC,8PIN,PLASTIC
ADL5903SCPZN-R7	ADI	获取价格	200 MHz to 6 GHz 35 dB TruPwr™ Detector
ADL5904	ADI	获取价格	RMS and envelope threshold detection
ADL5904ACPZN-R7	ADI	获取价格	DC to 6 GHz, 45 dB TruPwr Detector with Envelope Threshold Detection
ADL5904-EVALZ	ADI	获取价格	RMS and envelope threshold detection
ADL5906	ADI	获取价格	10 MHz to 10 GHz 67 dB TruPwr Detector
ADL5906ACPZN-R2	ADI	获取价格	10 MHz to 10 GHz 67 dB TruPwr Detector
ADL5906ACPZN-R7	ADI	获取价格	10 MHz to 10 GHz 67 dB TruPwr Detector
ADL5906-EVALZ	ADI	获取价格	10 MHz to 10 GHz 67 dB TruPwr Detector

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