LF398A

更新时间： 2024-02-10 14:07:44

品牌	Logo	应用领域
德州仪器 - TI		采样保持电路
页数	文件大小	规格书
15页	564K
描述
LF198/LF298/LF398, LF198A/LF398A Monolithic Sample-and-Hold Circuits

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

LF398A 技术参数

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,
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	风险等级：	5.64
最长采集时间：	6 µs	放大器类型：	SAMPLE AND HOLD CIRCUIT
JESD-30 代码：	R-PDSO-G	JESD-609代码：	e0
功能数量：	1	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	认证状态：	Not Qualified
采样并保持/跟踪并保持：	SAMPLE	子类别：	Sample and Hold Circuit
表面贴装：	YES	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子位置：	DUAL
Base Number Matches：	1

LF398A 数据手册

Electrical Characteristics

The following specifcations apply for −V_S+ 3.5V ≤ V_IN≤ +V_S− 3.5V, +V_S= +15V, −V_S= −15V, T_A= T_j= 25˚C, C_h= 0.01 µF,

R_L= 10 kΩ, LOGIC REFERENCE = 0V, LOGIC HIGH = 2.5V, LOGIC LOW = 0V unless otherwise specified.

Parameter

Conditions

LF198A

Typ

LF398A

Typ Max

Units

Min

Max

Min

Input Impedance

T_j= 25˚C

10¹⁰

Ω

Gain Error

T_j= 25˚C, R_L= 10k

0.002 0.005

0.004 0.005

Full Temperature Range

T_j= 25˚C, C_h= 0.01 µF

0.01

Feedthrough Attenuation Ratio

at 1 kHz

Output Impedance

T_j= 25˚C, “HOLD” mode

Full Temperature Range

T_j= 25˚C, C_h= 0.01µF, V_OUT= 0

T_j≥25˚C

0.5

Ω

“HOLD” Step, (Note 6)

Supply Current, (Note 5)

Logic and Logic Reference Input

Current

0.5

4.5

1.0

4.5

µA

5.5

6.5

T_j= 25˚C

Leakage Current into Hold

Capacitor (Note 5)

T_j= 25˚C, (Note 7)

Hold Mode

100

Acquisition Time to 0.1%

∆V_OUT= 10V, C_h= 1000 pF

C_h= 0.01 µF

µs

Hold Capacitor Charging Current

Supply Voltage Rejection Ratio

Differential Logic Threshold

V_IN−V_OUT= 2V

V_OUT= 0

T_j= 25˚C

110

1.4

110

1.4

0.8

2.4

0.8

2.4

Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits.

Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by T

, θ , and the ambient temperature, T . The maximum

JMAX JA

allowable power dissipation at any temperature is P = (T

− T )/θ , or the number given in the Absolute Maximum Ratings, whichever is lower. The maximum

A JA

JMAX

junction temperature, T

, for the LF198/LF198A is 150˚C; for the LF298, 115˚C; and for the LF398/LF398A, 100˚C.

JMAX

Note 3: Although the differential voltage may not exceed the limits given, the common-mode voltage on the logic pins may be equal to the supply voltages without

causing damage to the circuit. For proper logic operation, however, one of the logic pins must always be at least 2V below the positive supply and 3V above the nega-

tive supply.

Note 4: See AN-450 “Surface Mounting Methods and their effects on Product Reliability” for other methods of soldering surface mount devices.

Note 5: These parameters guaranteed over a supply voltage range of 5 to 18V, and an input range of −V + 3.5V ≤ V ≤ +V − 3.5V.

Note 6: Hold step is sensitive to stray capacitive coupling between input logic signals and the hold capacitor. 1 pF, for instance, will create an additional 0.5 mV step

with a 5V logic swing and a 0.01µF hold capacitor. Magnitude of the hold step is inversely proportional to hold capacitor value.

Note 7: Leakage current is measured at a junction temperature of 25˚C. The effects of junction temperature rise due to power dissipation or elevated ambient can

be calculated by doubling the 25˚C value for each 11˚C increase in chip temperature. Leakage is guaranteed over full input signal range.

Note 8: A military RETS electrical test specification is available on request. The LF198 may also be procured to Standard Military Drawing #5962-8760801GA or to

MIL-STD-38510 part ID JM38510/12501SGA.

Typical Performance Characteristics

Aperture Time

(Note 9)

Dielectric Absorption

Error in Hold Capacitor

Dynamic Sampling Error

DS005692-19

DS005692-17

DS005692-18

Note 9: See Definition of Terms

www.national.com

1 2 345 6 7...15

下载PDF

与LF398A相关器件

型号	品牌	描述	获取价格	数据表
LF398AH	NSC	Monolithic Sample-and-Hold Circuits	获取价格
LF398AH	Linear	Precision Sample and Hold Amplifier	获取价格
LF398AH	STMICROELECTRONICS	IC,SAMPLE/TRACK-AND-HOLD AMPLIFIER,SINGLE,BIPOLAR/JFET,CAN,8PIN,METAL	获取价格
LF398AH/A+	ETC	Sample/Track-and-Hold Amplifier	获取价格
LF398AH/NOPB	TI	SAMPLE AND HOLD AMPLIFIER, 20us ACQUISITION TIME, BCY8, ROHS COMPLIANT, METAL CAN, TO-99,	获取价格
LF398AJ8	Linear	IC SAMPLE AND HOLD AMPLIFIER, CDIP8, Sample and Hold Circuit	获取价格

与LF398A相关文章

MAX6675资料手册参数详解、引脚配置说明
2024-05-13

4
LM258引脚图及功能介绍、主要参数分析
2024-05-13

2
CD4052资料手册参数详解、引脚配置说明
2024-05-13

4
一文带你了解TPS5430资料手册分析：参数介绍、引脚配置说明
2024-05-13

4

产品中心

服务支持

精选活动

关于我们

帮助中心

LF398A

LF398A 技术参数

LF398A 数据手册

与LF398A相关器件

与LF398A相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LF398A

LF398A 技术参数

LF398A 数据手册

与LF398A相关器件

与LF398A相关文章

您还可以找

您在本页遇到什么问题？