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HGSEMI LM358AM/TR LM358AM
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HGSEMI LM358AM / TR
- Type
- HGSEMI
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HGSEMI
- Electronic Component
- LM358AM/TR
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Operational Amplifier
- Electronic Component
- 0.274g
- Electronic Component
- 1
- Electronic Component
- BM0227636596
- Operating Temperature
- 40℃~+85℃
- Amplifier
- 2
- Output Current
- 100mA
- (SR)
- 700V/ms
- Power Supply Voltage
- 2.7V~36V
- Static Current(Iq)
- 1.2mA
- 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.
LM358AM/TR 产品概述
一、主要特点
LM358AM/TR（华冠 HGSEMI）为双路低功耗运算放大器，面向单电源及双电源工业级应用。器件支持最大电源差宽达40V（单电源工作范围 2.7V ~ 36V；双电源 ±18V），封装为 SOP-8，TR 表示卷带（Tape & Reel）包装。器件注重低偏移、低偏置和较强的输出驱动能力，适合对成本、功耗与空间有平衡要求的通用放大场合。
二、关键参数说明
- 放大器数：双路
- 最大电源差宽 (Vdd−Vss)：40V
- 增益带宽积 (GBP)：700 kHz（闭环增益为 N 时，带宽约为 700kHz/N）
- 输入失调电压 (Vos)：9 mV；温漂 Vos TC：7 μV/℃
- 输入偏置电流 (Ib)：500 nA；输入失调电流 (Ios)：150 nA；Ios 温漂：10 pA/℃
- 压摆率 (SR)：700 V/ms（对快速电压转换有良好响应）
- 共模抑制比 (CMRR)：80 dB
- 静态电流 (Iq)：1.2 mA（典型）
- 输出电流：最高 100 mA（短时驱动能力，长期注意热耗散）
- 工作温度范围：−40℃ ~ +85℃
- 封装：SOP-8（小型化、便于自动贴片）
示例：在闭环增益为 10 的缓冲或放大配置中，可用带宽约为 70 kHz（700 kHz / 10），用于音频带域及一般控制信号放大足够。
三、典型应用场景
- 单电源模拟前端、传感器信号调理（因输入共模范围可接近负电源，便于地参考测量）
- 低频滤波器、积分/微分电路、缓冲放大器
- 仪表放大、数据采集前置放大、低速采样系统
- 继电器驱动前级、简单比较或窗口检测（非高速比较器替代）
四、封装与引脚（SOP-8）
常见引脚排列（自左上角逆时针）：
- 输出 A
- 反相输入 A
- 同相输入 A
- V−（Vss）
- 同相输入 B
- 反相输入 B
- 输出 B
- V+（Vdd）
（请以实际器件引脚资料为准）
五、选型与设计要点
- 电源与去耦：建议在 V+ 与 V− 近端并联 0.1 μF 陶瓷去耦，以抑制高频振铃。
- 带宽考量：根据 GBP 估算闭环带宽，避免在增益较高时期待高速响应。
- 偏置与漂移：Vos 9 mV 与温漂 7 μV/℃适合普通精度场合；高精度测量时考虑外部校准或后端校正。
- 输出驱动与散热：器件可短时提供较大电流，但长时间大电流输出需考虑功耗与封装散热限制。
- 包装与采购：型号 LM358AM/TR，HGSEMI（华冠）品牌，SOP-8 封装，TR 为卷带包装，便于SMT生产线使用。
总结：LM358AM/TR 提供了在宽电源电压范围内、低功耗和良好驱动能力之间的平衡，适合工业控制、传感器接口及常规模拟电路的双路放大需求。选择时根据带宽、偏移与输出电流要求做权衡，并注意电源去耦与热管理。
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