首页>LF298MXSLASHNOPB>规格书详情

LF298MXSLASHNOPB中文资料德州仪器数据手册PDF规格书

PDF无图
厂商型号

LF298MXSLASHNOPB

功能描述

LFx98x Monolithic Sample-and-Hold Circuits

丝印标识

LF298M

封装外壳

SOIC(D)

文件大小

3.23114 Mbytes

页面数量

41

生产厂商

TI

中文名称

德州仪器

网址

网址

数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-12-22 14:23:00

人工找货

LF298MXSLASHNOPB价格和库存,欢迎联系客服免费人工找货

LF298MXSLASHNOPB规格书详情

1 Features

1• Operates from ±5-V to ±18-V Supplies

• Less than 10-μs Acquisition Time

• Logic Input Compatible With TTL, PMOS, CMOS

• 0.5-mV Typical Hold Step at Ch = 0.01 μF

• Low Input Offset

• 0.002% Gain Accuracy

• Low Output Noise in Hold Mode

• Input Characteristics Do Not Change During Hold

Mode

• High Supply Rejection Ratio in Sample or Hold

• Wide Bandwidth

• Space Qualified, JM38510

2 Applications

• Ramp Generators With Variable Reset Level

• Integrators With Programmable Reset Level

• Synchronous Correlators

• 2-Channel Switches

• DC and AC Zeroing

• Staircase Generators

3 Description

The LFx98x devices are monolithic sample-and-hold

circuits that use BI-FET technology to obtain ultrahigh

DC accuracy with fast acquisition of signal and low

droop rate. Operating as a unity-gain follower, DC

gain accuracy is 0.002% typical and acquisition time

is as low as 6 μs to 0.01%. A bipolar input stage is

used to achieve low offset voltage and wide

bandwidth. Input offset adjust is accomplished with a

single pin and does not degrade input offset drift. The

wide bandwidth allows the LFx98x to be included

inside the feedback loop of 1-MHz operational

amplifiers without having stability problems. Input

impedance of 1010 Ω allows high-source impedances

to be used without degrading accuracy.

P-channel junction FETs are combined with bipolar

devices in the output amplifier to give droop rates as

low as 5 mV/min with a 1-μF hold capacitor. The

JFETs have much lower noise than MOS devices

used in previous designs and do not exhibit high

temperature instabilities. The overall design ensures

no feedthrough from input to output in the hold mode,

even for input signals equal to the supply voltages.

Logic inputs on the LFx98x are fully differential with

low input current, allowing for direct connection to

TTL, PMOS, and CMOS. Differential threshold is

1.4 V. The LFx98x will operate from ±5-V to ±18-V

supplies.

An A version is available with tightened electrical

specifications.

供应商 型号 品牌 批号 封装 库存 备注 价格
NSC
24+
DIP8
90000
一级代理商进口原装现货、假一罚十价格合理
询价
NS
23+
DIP8
8560
受权代理!全新原装现货特价热卖!
询价
TI(德州仪器)
24+
SOP14
3238
原装现货,免费供样,技术支持,原厂对接
询价
NS
专业铁帽
CAN
67500
铁帽原装主营-可开原型号增税票
询价
NS
2023+
3000
进口原装现货
询价
TI
23+
DIP8
2515
原厂原装正品
询价
NS
22+
DIP8
8000
原装正品支持实单
询价
NS
23+
DIP8
12800
公司只有原装 欢迎来电咨询。
询价
ST/意法
22+
5000
只做原装鄙视假货15118075546
询价
TI
09+
DIP8
15
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价