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AD8138-EVAL PDF预览

AD8138-EVAL

更新时间: 2024-02-06 00:39:06
品牌 Logo 应用领域
亚德诺 - ADI 驱动器
页数 文件大小 规格书
14页 235K
描述
Low Distortion Differential ADC Driver

AD8138-EVAL 技术参数

是否无铅: 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:SOP,针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:0.78
差分输出:YES驱动器位数:1
输入特性:DIFFERENTIAL接口集成电路类型:LINE DRIVER
接口标准:GENERAL PURPOSEJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
湿度敏感等级:1标称负供电电压:-5 V
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:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
最大接收延迟:座面最大高度:1.75 mm
最大供电电压:5.5 V最小供电电压:1.4 V
标称供电电压:5 V表面贴装:YES
技术:BIPOLAR温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3.9 mm
Base Number Matches:1

AD8138-EVAL 数据手册

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Low Distortion  
Differential ADC Driver  
a
AD8138  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Easy to Use Single-Ended-to-Differential Conversion  
Adjustable Output Common-Mode Voltage  
Externally Adjustable Gain  
Low Harmonic Distortion  
–94 dBc—Second, <–114 dBc—Third @ 5 MHz into  
800 Load  
+IN  
NC  
1
2
3
4
–IN  
8
7
6
5
V
OCM  
V+  
V–  
+OUT  
–OUT  
–87 dBc—Second, –85 dBc—Third @ 20 MHz into  
800 Load  
AD8138  
NC = NO CONNECT  
–3 dB Bandwidth of 320 MHz, G = +1  
Fast Settling to 0.01% of 16 ns  
Slew Rate 1150 V/s  
Fast Overdrive Recovery of 4 ns  
Low Input Voltage Noise of 5 nV/Hz  
1 mV Typical Offset Voltage  
Wide Supply Range +3 V to ؎5 V  
Low Power 90 mW on +5 V  
TYPICAL APPLICATION CIRCUIT  
+5V  
+5V  
499  
0.1 dB Gain Flatness to 40 MHz  
Available in 8-Lead SOIC  
499⍀  
AVDD  
DVDD  
V
+
IN  
AIN  
V
OCM  
DIGITAL  
OUTPUTS  
ADC  
AD8138  
APPLICATIONS  
ADC Driver  
499⍀  
AIN  
V
AVSS  
REF  
Single-Ended-to-Differential Converter  
IF and Baseband Gain Block  
Differential Buffer  
499⍀  
Line Driver  
PRODUCT DESCRIPTION  
performance ADCs, preserving the low frequency and dc infor-  
mation. The common-mode level of the differential output is  
adjustable by a voltage on the VOCM pin, easily level-shifting  
the input signals for driving single supply ADCs. Fast overload  
recovery preserves sampling accuracy.  
AD8138 is a major advancement over op amps for differential  
signal processing. The AD8138 can be used as a single-ended-  
to-differential amplifier or as a differential-to-differential ampli-  
fier. The AD8138 is as easy to use as an op amp, and greatly  
simplifies differential signal amplification and driving.  
The AD8138 distortion performance makes it an ideal ADC  
driver for communication systems, with distortion performance  
good enough to drive state-of-the-art 10- to 16-bit converters  
at high frequencies. The AD8138’s high bandwidth and IP3  
also make it appropriate for use as a gain block in IF and  
baseband signal chains. The AD8138 offset and dynamic per-  
formance make it well suited for a wide variety of signal pro-  
cessing and data acquisition applications.  
Manufactured on ADI’s proprietary XFCB bipolar process, the  
AD8138 has a –3 dB bandwidth of 320 MHz and delivers a  
differential signal with the lowest harmonic distortion available  
in a differential amplifier. The AD8138 has a unique internal  
feedback feature that provides output gain and phase matching  
that are balanced, suppressing even order harmonics. The inter-  
nal feedback circuit also minimizes any gain error that would be  
associated with the mismatches in the external gain setting  
resistors.  
The AD8138 is offered in an 8-lead SOIC that operates over  
the industrial temperature range of –40°C to +85°C.  
The AD8138’s differential output helps balance the input-to-  
differential ADCs, maximizing the performance of the ADC.  
The AD8138 eliminates the need for a transformer with high  
REV. A  
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  
which 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  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  

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