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AD8130ARZ-REEL

更新时间： 2024-01-09 21:31:52

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
40页	634K
描述
Low Cost 270 MHz Differential Receiver Amplifiers

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技术参数
数据手册
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AD8130ARZ-REEL 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：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	0.63
其他特性：	IT CAN ALSO OPERATE FROM A DUAL +/-12V OR SINGLE 5V NOMINAL SUPPLY	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	R-PDSO-G8	JESD-609代码：	e3
长度：	4.9 mm	湿度敏感等级：	1
负电源电压最大值（Vsup）：	-12.6 V	负电源电压最小值（Vsup）：	-2.25 V
标称负供电电压 (Vsup)：	-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	座面最大高度：	1.75 mm
最大供电电压 (Vsup)：	12.6 V	最小供电电压 (Vsup)：	2.25 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
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

AD8130ARZ-REEL 数据手册

AD8129/AD8130

The power dissipation is a function of several operating

conditions, including the supply voltage, the input differential

voltage, the output load, and the signal frequency.

Another problem can occur with the AD8129 operating

at a supply voltage of greater than or equal to 12 V. The

architecture causes the supply current to increase as the input

differential voltage increases. If the AD8129 differential inputs

are overdriven too far, excessive current can flow into the device

and potentially cause permanent damage.

A basic starting point is to calculate the quiescent power

dissipation with no signal and no differential input voltage.

This is just the product of the total supply voltage and the

quiescent operating current. The maximum operating supply

voltage is 26.4 V, and the quiescent current is 13 mA. This

causes a quiescent power dissipation of 343 mW. For the

MSOP package, the θ_JAspecification is 142°C/W. Therefore,

the quiescent power causes about a 49°C rise above ambient

in the MSOP package.

A practical means to prevent this from occurring is to clamp the

inputs differentially with a pair of antiparallel Schottky diodes

(see Figure 146). These diodes have a lower forward voltage of

approximately 0.4 V. If the differential voltage across the inputs

is restricted to these conditions, no excess current is drawn by

the AD8129 under these operating conditions.

The current consumption is also a function of the differential

input voltage (see Figure 113 and Figure 114). This current

should be added onto the quiescent current and then multiplied

by the total supply voltage to calculate the power.

If the supply voltage is restricted to less than 11 V, the internal

clamping circuit limits the differential voltage and excessive

supply current is not drawn. The external clamp circuit is not

needed.

The AD8129/AD8130 can directly drive loads of as low as

100 Ω, such as a terminated 50 Ω cable. The worst-case power

dissipation in the output stage occurs when the output is at

midsupply. As an example, for a 12 V supply with the output

driving a 250 Ω load to ground, the maximum power dissipation

in the output occurs when the output voltage is 6 V. The load

current is 6 V/250 Ω = 24 mA. This same current flows through

the output across a 6 V drop from V_S. It dissipates 144 mW. For

the 8-lead MSOP package, this causes a temperature rise of

20°C above ambient. Although this is a worst-case number, it is

apparent that this can be a considerable additional amount of

power dissipation.

AD8129

0.1

10μF

AGILENT

HSMS 2822

OUT

–V

10μF

0.1μF

–V

Figure 146. Schottky Diodes Across the Inputs

Limits the Input Differential Voltage

Several changes can be made to alleviate this. One is to use the

standard 8-lead SOIC package. This lowers the thermal impedance

to 121°C/W, which is a 15% improvement. Another is to use a

lower supply voltage unless absolutely necessary.

In both circuits, the input series resistors function to limit the

current through the diodes when they are forward biased. As a

practical matter, these resistors must be matched so that the

CMRR is preserved at high frequencies. These resistors have

minimal effect on the CMRR at low frequency.

Finally, do not use the AD8129/AD8130 when it is operating on

high supply voltages to directly drive a heavy load. It is best to

use a second op amp after the output stage. Some of the gain

can be shifted to this stage so that the signal swing at the output

of the AD8129/AD8130 is not too large.

POWER DISSIPATION

The AD8129/AD8130 can operate with supply voltages from

+5 V to 12 V. The major reason for such a wide supply range is

to provide a wide input common-mode range for systems that

can require this. This would be encountered when significant

common-mode noise couples into the input path. For applications

that do not require a wide dynamic range for the input or output, it

is recommended to operate with lower supply voltages.

The AD8129/AD8130 is also available in a very small 8-lead

MSOP package. This package has higher thermal impedance

than larger packages and operates at a higher temperature with

the same amount of power dissipation. Certain operating

conditions that are within the specifications range of the parts can

cause excess power dissipation. Caution should be exercised.

Rev. C | Page 37 of 40

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中文翻译

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AD8130ARZ-REEL 替代型号

型号	品牌	替代类型	描述	数据表
AD8130ARZ-REEL7	ADI	类似代替	Low Cost 270 MHz Differential Receiver Amplifiers
AD8130ARZ	ADI	类似代替	Low Cost 270 MHz Differential Receiver Amplifiers
AD8130AR-REEL	ADI	完全替代	Low Cost 270 MHz Differential Receiver Amplifiers

与AD8130ARZ-REEL相关器件

型号	品牌	获取价格	描述	数据表
AD8130ARZ-REEL7	ADI	获取价格	Low Cost 270 MHz Differential Receiver Amplifiers
AD8130ARZ-REEL7	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO8, LEAD FREE, SOIC-8
AD8130-EVAL	ADI	获取价格	Low-Cost 270 MHz Differential Receiver Amplifiers
AD8131	ADI	获取价格	Low-Cost, High-Speed Differential Driver
AD8131_05	ADI	获取价格	Low Cost, High Speed Differential Driver
AD8131AR	ADI	获取价格	Low-Cost, High-Speed Differential Driver
AD8131ARM	ADI	获取价格	Low-Cost, High-Speed Differential Driver
AD8131ARM-REEL	ADI	获取价格	Low-Cost, High-Speed Differential Driver
AD8131ARM-REEL7	ADI	获取价格	Low-Cost, High-Speed Differential Driver
AD8131ARMZ	ADI	获取价格	Low Cost, High Speed Differential Driver

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