ADA4310-1

更新时间： 2024-02-02 23:21:22

品牌	Logo	应用领域
亚德诺 - ADI		驱动器
页数	文件大小	规格书
16页	338K
描述
Low Cost, Dual, High Current Output Line Driver with Shutdown

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中文翻译

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技术参数
数据手册

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ADA4310-1 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：	TSSOP
包装说明：	HTSSOP,	针数：	10
Reach Compliance Code：	unknown	风险等级：	5.34
放大器类型：	OPERATIONAL AMPLIFIER	标称共模抑制比：	62 dB
最大输入失调电压：		JESD-30 代码：	S-PDSO-G10
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	3	功能数量：	2
端子数量：	10	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：	HTSSOP	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
座面最大高度：	1.1 mm	标称压摆率：	820 V/us
子类别：	Operational Amplifier	标称供电电压 (Vsup)：	12 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	MATTE TIN
端子形式：	GULL WING	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：	NOT SPECIFIED
宽度：	3 mm

ADA4310-1 数据手册

ADA4310-1

THEORY OF OPERATION

ꢁhe ADA4310-1 is a current feedback amplifier with high

output current capability. With a current feedback amplifier, the

current into the inverting input is the feedback signal, and the

open-loop behavior is that of a transimpedance, dV_O/dI_INor ꢁ_Z.

Because G × R_IN<< R_Ffor low gains, a current feedback

amplifier has relatively constant bandwidth vs. gain, the 3 dB

point being set when |ꢁ_Z| = R_F.

Of course, for a real amplifier there are additional poles that

contribute excess phase, and there is a value for R_Fbelow which

the amplifier is unstable. ꢁolerance for peaking and desired

flatness determines the optimum R_Fin each application.

ꢁhe open-loop transimpedance is analogous to the open-loop

voltage gain of a voltage feedback amplifier. Figure 20 shows a

simplified model of a current feedback amplifier. Because R_INis

proportional to 1/g_m, the equivalent voltage gain is just ꢁ_Z× g_m,

where g_mis the transconductance of the input stage. Basic

analysis of the follower with gain circuit yields

V_O

V_IN

T_Z

( )

= G ×

OUT

T_Zs + G × R_IN+ R_F

( )

where:

R_F

R_G

Figure 20. Simplified Block Diagram

G =1+

g_m

R_IN

≈ 50 ꢂ

Rev. 0 | Page 10 of 16

1...7 8 91011 12 13...16

中文翻译

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