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AD8319-EVAL

更新时间： 2024-01-15 05:43:45
品牌 Logo 应用领域
亚德诺 - ADI 控制器
页数 文件大小 规格书
20页 1282K
描述
1 MHz to 10 GHz, 40 dB Log Detector/Controller

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AD8319-EVAL 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：HVSON,针数：8
Reach Compliance Code：unknown风险等级：5.75
Is Samacsys：N模拟集成电路 - 其他类型：LOG OR ANTILOG AMPLIFIER
JESD-30 代码：R-PDSO-N8JESD-609代码：e3
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：COMMERCIAL
座面最大高度：1 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：3 V表面贴装：YES
技术：BIPOLAR温度等级：INDUSTRIAL
端子面层：MATTE TIN端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：2 mm
Base Number Matches：1

AD8319-EVAL 数据手册

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1 MHz to 10 GHz, 40 dB  
Log Detector/Controller  
AD8319  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Wide bandwidth: 1 MHz to 10 GHz  
VPOS  
TADJ  
High accuracy: 1.0 dB over temperature  
>40 dB dynamic range up to 8 GHz  
Stability over temperature 0.5 dB  
Low noise measurement/controller output VOUT  
Pulse response time: 8/10 ns (fall/rise)  
Small footprint 2 mm x 3 mm CSP package  
Supply operation: 3.0V to 5.5V @ 22 mA  
Fabricated using high speed SiGe process  
GAIN  
BIAS  
SLOPE  
VSET  
I
I
V
V
VOUT  
CLPF  
DET  
DET  
DET  
DET  
INHI  
INLO  
COMM  
APPLICATIONS  
Figure 1.  
RF transmitter PA setpoint control and level monitoring  
Power monitoring in radiolink transmitters  
RSSI measurement in base stations, WLAN, WiMAX, radar  
GENERAL DESCRIPTION  
The feedback loop through an RF amplifier is closed via VOUT,  
the output of which regulates the amplifier’s output to a  
magnitude corresponding to VSET. The AD8319 provides  
0 V to (VPOS − 0.1 V) output capability at the VOUT pin,  
suitable for controller applications. As a measurement device,  
VOUT is externally connected to VSET to produce an output  
voltage VOUT that is a decreasing linear-in-dB function of the RF  
input signal amplitude.  
The AD8319 is a demodulating logarithmic amplifier, capable  
of accurately converting an RF input signal to a corresponding  
decibel-scaled output. It employs the progressive compression  
technique over a cascaded amplifier chain, each stage of which  
is equipped with a detector cell. The device can be used in either  
measurement or controller modes. The AD8319 maintains  
accurate log conformance for signals of 1 MHz to 8 GHz and  
provides useful operation to 10 GHz. The input dynamic range  
is typically 40 dB (re: 50 Ω) with error less than ±1 dB. The  
AD8319 has 8/10 ns response time (fall time/rise time) that  
enables RF burst detection to a pulse rate of beyond 50 MHz.  
The device provides unprecedented logarithmic intercept  
stability vs. ambient temperature conditions. A supply of 3.0 V  
to 5.5 V is required to power the device. Current consumption  
is typically 22 mA, and it decreases to 200 μA when the device is  
disabled.  
The logarithmic slope is −22 mV/dB, determined by the VSET  
interface. The intercept is +15 dBm (re: 50 Ω, CW input) using  
the INHI input. These parameters are very stable against supply  
and temperature variations.  
The AD8319 is fabricated on a SiGe bipolar IC process and is  
available in a 2 mm × 3 mm, 8-lead LFCSP_VD package for an  
operating temperature range of –40oC to +85oC.  
The AD8319 can be configured to provide a control voltage to  
a power amplifier or a measurement output from the VOUT  
pin. Because the output can be used for controller applications,  
special attention has been paid to minimize wideband noise. In  
this mode, the setpoint control voltage is applied to the VSET pin.  
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, nor for any infringements of patents or other  
rights of third parties that may result from its 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 and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2005 Analog Devices, Inc. All rights reserved.  
 
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