Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
HGSEMI OPA277M/TR OPA277M
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HGSEMI OPA277M / TR
- Type
- HGSEMI
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HGSEMI
- Electronic Component
- OPA277M/TR
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Precision Op Amp
- Electronic Component
- 0.24g
- Electronic Component
- 1
- Features
- Built-in; positions
- Electronic Component
- BM0227708184
- Operating Temperature
- 40℃~+85℃
- Amplifier
- Electronic Component
- Output Current
- 35mA
- (SR)
- 0.8V/us
- Static Current(Iq)
- 800uA
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
OPA277M/TR 产品概述
一、产品简介
OPA277M/TR（品牌：HGSEMI/华冠）是一款单路高精度运算放大器，封装为SOP-8，面向要求极低失调、电压噪声与优异共模抑制的精密测量与数据采集应用。器件主要静态与动态参数包括：共模抑制比 CMRR = 140 dB；噪声密度 eN = 8 nV/√Hz @1 kHz；最大电源宽度 VDD–VSS = 36 V；输入失调电压 Vos = 10 μV；输入偏置电流 Ib = 1 nA；输入失调电压温漂 Vos TC = 100 nV/°C；增益带宽积 GBP = 1 MHz；压摆率 SR = 0.8 V/μs；静态电流 Iq = 800 μA；典型输出电流可达 35 mA；工作温度范围 -40 ℃ ～ +85 ℃。
二、主要性能优势
- 极低输入失调（10 μV）与极小温漂（100 nV/°C），保证长期与温度变化下的高精度直流测量。
- 低噪声（8 nV/√Hz）适合微小信号放大与低噪声前端设计。
- 超高共模抑制（140 dB）在共模干扰存在时仍能保持差分信号完整性。
- 宽工作电源（最高36 V）与35 mA输出驱动能力，兼顾高电压系统与中等负载驱动需求。
- 1 MHz 带宽与 0.8 V/μs 压摆率适合 DC 到低中频的精密放大与滤波应用。
三、典型应用场景
- 精密数据采集与ADC驱动（电压基准缓冲、采样保持前端）
- 传感器接口（压力、温度、应变电桥信号放大）
- 医疗仪表与生物电测量（要求低失调、低噪声的前端）
- 工业控制与过程测量中的精密比例/积分环节
- 有源滤波器、精密比较与差分放大电路
四、封装与使用要点
- 封装：SOP-8，便于表面贴装生产与散热管理。工作温度范围 -40 ℃ ～ +85 ℃，适合常见工业环境。
- PCB布局建议：输入引脚走线尽量短且隔离噪声源，重点对电源端做良好去耦（1 μF 与 0.1 μF 并联靠近电源脚），对高阻节点建议采用隔离与屏蔽/环护（guard ring）以抑制泄漏与漂移。
- 电路设计提示：考虑器件 GBP = 1 MHz 与 SR = 0.8 V/μs，在较高增益或大电容负载时需关注稳定性与相位裕度；对输入过压或电荷注入场景加入限流/钳位电路以保护输入。
五、选型与订购
推荐型号：OPA277M/TR（HGSEMI / 华冠），适用于追求极低失调与噪声的精密模拟前端。选型时请参阅完整数据手册以确认引脚定义、典型性能曲线与封装机械规格，并在关键应用中进行实测验证。
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