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AD8370AREZ PDF预览

AD8370AREZ

更新时间： 2024-01-08 20:22:55
品牌 Logo 应用领域
亚德诺 - ADI 模拟IC信号电路光电二极管PC
页数 文件大小 规格书
28页 774K
描述
LF to 750 MHz, Digitally Controlled VGA

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AD8370AREZ 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：TSSOP包装说明：TSSOP-16
针数：16Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：5.63
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：5 mm
功能数量：1端子数量：16
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：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：1.1 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：TIN LEAD端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

AD8370AREZ 数据手册

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LF to 750 MHz,  
Digitally Controlled VGA  
Data Sheet  
AD8370  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Programmable low and high gain (<2 dB resolution)  
Low range: −11 dB to +17 dB  
High range: 6 dB to 34 dB  
Differential input and output  
200 Ω differential input  
VCCI  
VCCO VCCO  
3
11  
6
4
2
5
7
PWUP  
ICOM  
BIAS CELL  
VOCM  
OCOM  
100 Ω differential output  
1
8
OPHI  
INHI  
PRE  
AMP  
OUTPUT  
AMP  
TRANSCONDUCTANCE  
7 dB noise figure @ maximum gain  
Two-tone IP3 of 35 dBm @ 70 MHz  
−3 dB bandwidth of 750 MHz  
40 dB precision gain range  
Serial 8-bit digital interface  
Wide input dynamic range  
Power-down feature  
9
16  
15  
INLO  
ICOM  
OPLO  
OCOM  
10  
SHIFT REGISTER  
AND LATCHES  
AD8370  
14  
12  
13  
DATA CLCK LTCH  
Figure 1.  
Single 3 V to 5 V supply  
70  
40  
CODE = LAST 7 BITS OF GAIN CODE  
(NO MSB)  
APPLICATIONS  
60  
50  
40  
30  
20  
10  
0
30  
20  
10  
0
Differential ADC drivers  
IF sampling receivers  
RF/IF gain stages  
Cable and video applications  
SAW filter interfacing  
Single-ended-to-differential conversion  
HIGH GAIN MODE  
LOW GAIN MODE  
HIGH GAIN MODE  
GAIN  
0.409  
0.059  
CODE  
–10  
–20  
–30  
GENERAL DESCRIPTION  
GAIN  
CODE  
The AD8370 is a low cost, digitally controlled, variable gain  
amplifier (VGA) that provides precision gain control, high IP3,  
and low noise figure. The excellent distortion performance and  
wide bandwidth make the AD8370 a suitable gain control  
device for modern receiver designs.  
LOW GAIN MODE  
0
10 20 30 40 50 60 70 80 90 100 110 120 130  
GAIN CODE  
Figure 2. Gain vs. Gain Code at 70 MHz  
For wide input, dynamic range applications, the AD8370 provides  
two input ranges: high gain mode and low gain mode. A vernier,  
7-bit, transconductance (gm) stage provides 28 dB of gain range  
at better than 2 dB resolution and 22 dB of gain range at better than  
1 dB resolution. A second gain range, 17 dB higher than the first,  
can be selected to provide improved noise performance.  
Gain control of the AD8370 is through a serial 8-bit gain control  
word. The MSB selects between the two gain ranges, and the  
remaining 7 bits adjust the overall gain in precise linear gain steps.  
Fabricated on the ADI high speed XFCB process, the high  
bandwidth of the AD8370 provides high frequency and low  
distortion. The quiescent current of the AD8370 is 78 mA  
typically. The AD8370 amplifier comes in a compact, thermally  
enhanced 16-lead TSSOP package and operates over the  
temperature range of −40°C to +85°C.  
The AD8370 is powered on by applying the appropriate logic  
level to the PWUP pin. When powered down, the AD8370  
consumes less than 4 mA and offers excellent input to output  
isolation. The gain setting is preserved when operating in a  
power-down mode.  
Rev. B  
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  
www.analog.com  
Fax: 781.461.3113 © 2005-2011 Analog Devices, Inc. All rights reserved.  
 
 
 
 
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AD8370AREZ 替代型号

型号 品牌 替代类型 描述 数据表
AD8370AREZ-RL7 ADI

类似代替

 LF to 750 MHz, Digitally Controlled VGA
AD8370ARE-REEL7 ADI

类似代替

 LF to 750 MHz Digitally Controlled VGA
AD8370ARE ADI

功能相似

 LF to 750 MHz Digitally Controlled VGA

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AD8370AREZ-REEL7 ADI

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AD8370AREZ-RL7 ADI

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AD8370ARU ADI

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AD8370-EVALZ ADI

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 		LF to 750 MHz, Digitally Controlled VGA
AD8372 ADI

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 		41 dB Range, 1 dB Step Size, Programmable Dual VGA
AD8372_17 ADI

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AD8372ACPZ-R7 ROCHESTER

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 		SPECIALTY ANALOG CIRCUIT, QCC32, 5 X 5 MM, ROHS COMPLIANT, MO-220VHHD-2, LFCSP-32
AD8372ACPZ-R7 ADI

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