WMSIC Electronic Components

HGSEMI LM331M/TR LM331M

ModelLM331M/TR
PackageSOP-8
BrandHGSEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM331M / TR
Type
HGSEMI
Minimum package
2500 编带

Technical parameters

Electronic Component
15mW
Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM331M/TR
Electronic Component
1
Package
SOP-8
Electronic Component
V / Fand F / VConversion IC
Electronic Component
0.32g
Frequency
100kHz
Linear
0.01%
Electronic Component
1
Features
Reference;;; Frequency
Electronic Component
BM0227694274
Operating Temperature
0℃~+70℃
Operating Voltage
4V~40V
Electronic Component
50ppm/℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

LM331M/TR 产品概述

一、产品简介

LM331M/TR(品牌:HGSEMI/华冠)是一款精密压-频(V→F)转换器集成电路,采用SOP-8封装,面向低功耗、高精度的模拟信号数字化与频率传输场景。器件在单电源或双电源工作条件下均能稳定实现电压到频率的线性转换,适用于传感器信号采集、远距离频率传输、模数转换前端及频率测量等应用。

二、主要性能指标

  • 转换类型:V→F(压-频)
  • 工作电压:4V~40V(单电源工作)
  • 工作温度:0℃~+70℃
  • 最大工作频率:100 kHz(典型应用上限)
  • 功耗:典型 15 mW
  • 温度稳定性:50 ppm/℃
  • 线性度:0.01%(高精度线性响应)
  • 输入失调电压 Vos:10 mV
  • 输入偏置电流 Ib:89 nA
  • 输入失调电流 Ios:8 nA
  • 封装形式:SOP-8

三、性能特点

  • 高线性度与低温漂,适合要求高精度的测量环境;
  • 宽工作电压范围,支持低电压便携和高电压工业系统;
  • 低功耗设计,适合电池供电和能耗敏感型设备;
  • 输入偏置/失调电流小,有利于与高阻源传感器直连;
  • SOP-8 小型封装,便于量产装配和散热设计。

四、典型应用

  • 传感器接口(温度、压力、光电等)实现电压到频率的直接转换,便于抗干扰的频率传输;
  • 精密模数转换(通过计数器或微控制器对频率计数实现数字化);
  • 远距离模拟信号传输(以频率形式发送以降低干扰);
  • 工业控制与测试测量仪器;
  • 低速信号监测与报警系统。

五、典型使用建议与注意事项

  • 外围定时电容Ct与定时电阻Rt决定输出频率范围与线性度,应按应用频段精选低温漂元件以保证整体温度稳定性;
  • 在单电源低电压应用下,注意输入范围与参考点,避免输入超出允许范围造成性能退化;
  • 布局时将定时电容紧贴芯片相应引脚,地线避免大型回路,使用去耦电容抑制电源噪声;
  • 对于高频输出或长线传输,加入适当的滤波与限流保护以保护IC及后端计数器。

六、封装与订购信息

  • 封装:SOP-8(适合贴片自动化装配)
  • 型号示例:LM331M/TR(HGSEMI/华冠)
    如需评估样片或详细应用资料(典型电路、参考设计或PSPICE模型),建议联系华冠或授权分销商获取器件数据手册与应用笔记,以便在具体系统中获得最佳性能。

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