WMSIC Electronic Components

MICRONE ME321AM5G

ModelME321AM5G
PackageSOT-23-5
BrandMICRONE
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
MICRONE ME321AM5G
Type
MICRONE
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME321AM5G
Electronic Component
1
Package
SOT-23-5
Electronic Component
Operational Amplifier
Electronic Component
0.048g
Electronic Component
1
Electronic Component
Output
Electronic Component
BM0227656167
Operating Temperature
40℃~+125℃
Amplifier
1
Output Current
85mA
(SR)
580V/ms
Power Supply Voltage
2.1V~5.5V
Static Current(Iq)
65uA

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

ME321AM5G 运算放大器产品概述

ME321AM5G 是 MICRONE(南京微盟)推出的一款低功耗、低噪声、轨到轨输入/输出的单路运算放大器,采用紧凑的 SOT-23-5 封装,适合电池供电和空间受限的便携式电子设备。器件在宽温度范围内工作,兼顾低偏置电流与较宽的带宽与高速特性,适用于精密测量与模拟前端放大场合。

一、主要特点

  • 轨到轨输入与轨到轨输出,利于低电源电压系统设计
  • 单电源工作范围:2.1V 至 5.5V;支持对称双电源 ±1.05V~±2.75V
  • 极低静态电流:典型 Iq = 65 μA,有利于延长电池寿命
  • 高输出能力:输出电流可达 85 mA,驱动能力强
  • 低噪声:噪声密度 eN = 27 nV/√Hz (@1 kHz)
  • 高共模抑制:CMRR = 80 dB,精度好
  • 低输入偏置电流:Ib = 10 pA,适合高阻抗传感器
  • 低输入失调:Vos = 4 mV,失调温漂 Vos TC = 2 μV/°C
  • 增益带宽积 GBP = 1 MHz,压摆率 SR = 580 V/ms,适合中高速信号处理

二、关键参数(摘要)

  • 放大器数:单路
  • 封装:SOT-23-5
  • 工作温度范围:-40°C ~ +125°C
  • 输入偏置电流:10 pA;输入失调电流 Ios = 1 pA
  • 静态电流 Iq = 65 μA;输出电流 = 85 mA
  • 最大电源宽度:Vdd–Vss = 5.5 V
  • 噪声密度:27 nV/√Hz @1 kHz

三、典型应用

  • 便携式仪器与电池供电系统
  • 传感器前端(高阻抗传感器、热电偶放大等)
  • 精密滤波、差分放大与仪表放大器前级
  • 数据采集模拟接口、驱动小型执行器或继电器前级

四、使用与布局建议

  • 电源旁路:建议在 Vcc/Vdd 与地之间放置 0.1 μF 陶瓷旁路电容,靠近引脚布局以抑制高频噪声
  • 输入保护:对高阻抗信号源使用防静电与防震荡措施,避免输入超出电源轨
  • 输出驱动与稳定性:当驱动大电容性负载时注意补偿与稳定性,必要时在输出与地间并联小串联阻抗或使用隔离电阻
  • PCB 布局:输入与反馈回路保持短路径,模拟地尽量独立或使用星形接地,减小共模干扰

五、封装与采购

ME321AM5G 采用通用的 SOT-23-5 小封装,便于表面贴装生产与空间受限设计。具体订购信息、引脚定义与完整电气特性建议参考 MICRONE 官方数据手册以获得典型曲线与最大额定值。

如需在特定应用中替代或并联使用,请提供电路工作点与负载条件,我可以协助评估性能与稳定性调整建议。

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