Datasheet > BUF601AU/2K5

BUF601AU/2K5

更新时间： 2024-02-18 01:57:05

品牌	Logo	应用领域
德州仪器 - TI		放大器光电二极管
页数	文件大小	规格书
16页	198K
描述
High-Speed Buffer Amplifier 8-SOIC

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技术参数
数据手册

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BUF601AU/2K5 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	8
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	风险等级：	5.78
商用集成电路类型：	VIDEO AMPLIFIER	JESD-30 代码：	R-PDSO-G8
长度：	4.9 mm	功能数量：	1
端子数量：	8	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）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	1.75 mm
表面贴装：	YES	技术：	BIPOLAR
温度等级：	INDUSTRIAL	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：	NOT SPECIFIED	宽度：	3.9 mm
Base Number Matches：	1

BUF601AU/2K5 数据手册

DRIVING CABLES

Direct Drive

The most obvious way is to connect the cable directly to the

output of the buffer. This results in a gain determined by the

buffer output resistance and the characteristic impedance of

the cable, assuming it is properly terminated.

+5V

Z_O

A_V

Z_O+ R_O

BUF

Z_O

Double termination of a cable is the cleanest way to drive it,

since reflections are absorbed on both ends of the cable. The

cable source resistor is equal to the characteristic impedance

less the output resistance of the buffer amplifiers. The gain

is –6dB excluding of the cable attenuation.

V_I

V_O

150Ω

Z_O

–5V

+5V

VIDEO DISTRIBUTION AMPLIFIER

In this broadcast quality circuit, the OPA623 provides a very

high input impedance so that it may be used with a wide

variety of signal sources including video DACs, CCD cam-

eras, video switches or 75Ω cables. The OPA623 provides a

voltage gain of 2.5V/V, while the potentiometer of 200Ω

allows the overall gain to be adjusted to drive the standard

signal levels into the back-terminated 75Ω cables. Back

matching prevents multiple reflections in the event that the

remote end of the cable is not properly terminated.

R_OUT= Z_O– R_O

BUF

Z_O

V_I

V_O

150Ω

R_OUT

Z_O

–5V

A_V= – 6dB

Double Matched

FIGURE 4. Driving Cables.

+5V

2.2µF

470nF

68Ω

120Ω

BUF601

V_O

–5V

2.2µF

470nF

+5V

2.2µF

470nF

BUF601

68Ω

+5V

–5V

2.2µF

470nF

+5V

OPA658

2.2µF

470nF

V_I

150Ω

200Ω

75Ω

BUF601

68Ω

–5V

250Ω

100Ω

470nF

2.2µF

–5V

FIGURE 5. Video Distribution Amplifier.

BUF600, 601

1...8 9 101112 13 14...16

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