AD8367ARU-REEL-7

更新时间： 2024-02-10 03:17:10

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管
页数	文件大小	规格书
16页	604K
描述
500 MHz, Linear-in-dB VGA with AGC Detector

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替代型号

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AD8367ARU-REEL-7 数据手册

500 MHz, Linear-in-dB VGA

with AGC Detector

AD8367

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Broad Range Analog Variable Gain

–2.5 dB to +42.5 dB

VPSI

VPSO

ENBL

3 dB Cutoff Frequency of 500 MHz

Gain Up and Gain Down Modes

Linear-in-dB, Scaled 20 mV/dB

Resistive Ground Referenced Input

Nominal Z_IN

200 ⍀

ICOM

INPT

AD8367

ICOM

DECL

BIAS

9-STAGE ATTENUATOR BY 5dB

GAUSSIAN INTERPOLATOR

HPFL

VOUT

CELLS

On-Chip Square-Law Detector

Single-Supply Operation: 2.7 V to 5.5 V

SQUARE

LAW

DETECTOR

APPLICATIONS

Cellular Base Station

Broadband Access

ICOM

OCOM

Power Amplifier Control Loops

Complete, Linear IF AGC Amplifiers

High-Speed Data I/O

MODE

GAIN

DETO

GENERAL DESCRIPTION

The analog gain-control interface is very simple to use. It is

The AD8367 is a high-performance 45 dB variable gain ampli-

fier with linear-in-dB gain control for use from low frequencies

up to several hundred megahertz. The range, flatness, and accu-

racy of the gain response are achieved using Analog Devices’

X-AMP^®architecture, the most recent in a series of powerful

proprietary concepts for variable gain applications, which far

surpasses what can be achieved using competing techniques.

scaled at 20 mV/dB, and the control voltage, V_GAIN, runs from

50 mV at –2.5 dB to 950 mV at +42.5 dB. In the inverse-gain

mode of operation, selected by a simple pin-strap, the gain

decreases from +42.5 dB at V_GAIN= 50 mV to –2.5 dB at

V_GAIN= 950 mV. This inverse mode is needed in AGC applications,

which are supported by the integrated square-law detector,

whose set point is chosen to level the output to 354 mV rms,

regardless of the waveshape. A single external capacitor sets up

the loop averaging time.

The input is applied to a 200 Ω resistive ladder network, having

nine sections each of 5 dB loss, for a total attenuation of 45 dB.

At maximum gain, the first tap is selected; at progressively lower

gains, the tap moves smoothly and continuously toward higher

attenuation values. The attenuator is followed by a 42.5 dB

fixed gain feedback amplifier—essentially an operational ampli-

fier with a gain bandwidth product of 100 GHz—and is very

linear, even at high frequencies. The output third order intercept is

+20 dBV at 100 MHz (+27 dBm re 200 Ω), measured at an

output level of 1 V p-p with V_S= 5 V.

The AD8367 may be powered on or off by a voltage applied to

the ENBL pin. When this voltage is at a logic LO, the total power

dissipation drops to the milliwatt range. For a logic HI, the chip

powers-up rapidly to its normal quiescent current of 26 mA at

25°C. The AD8367 is available in a 14-lead TSSOP package for

the industrial temperature range of –40°C to +85°C.

X-AMP is a registered trademark of Analog Devices, Inc.

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. No license is granted by implication or otherwise

under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

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AD8367ARU-REEL-7 替代型号

型号	品牌	替代类型	描述	数据表
AD8367ARUZ	ADI	功能相似	暂无描述
AD8367ARUZ-RL7	ADI	功能相似	500 MHz, Linear-in-dB VGA with AGC Detector
AD8367ARU	ADI	功能相似	500 MHz, Linear-in-dB VGA with AGC Detector

与AD8367ARU-REEL-7相关器件

型号	品牌	获取价格	描述	数据表
AD8367ARUZ	ADI	获取价格	暂无描述
AD8367ARUZ1	ADI	获取价格	500 MHz, Linear-in-dB VGA with AGC Detector
AD8367ARUZ-RL7	ADI	获取价格	500 MHz, Linear-in-dB VGA with AGC Detector
AD8367-EVAL	ADI	获取价格	500 MHz, Linear-in-dB VGA with AGC Detector
AD8367L703F	ADI	获取价格	Aerospace 500 MHz, 45 dB Linear-in-dB Variable Gain Amplifier
AD8367R703F	ADI	获取价格	Aerospace 500 MHz, 45 dB Linear-in-dB Variable Gain Amplifier
AD8367S	ADI	获取价格	暂无描述
AD8368	ADI	获取价格	800 MHz, Linear-in-dB VGA with AGC Detector
AD8368_07	ADI	获取价格	800 MHz, Linear-in-dB VGA with AGC Detector
AD8368ACPZ-REEL7	ADI	获取价格	800 MHz, Linear-in-dB VGA with AGC Detector

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