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Slkor LM2904
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Slkor LM2904
- Type
- SLKOR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SLKOR
- Electronic Component
- LM2904
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Operational Amplifier
- Electronic Component
- 0.19g
- Electronic Component
- 1
- Features
- Built-in
- Electronic Component
- BM0227676396
- Operating Temperature
- 0℃~+70℃
- Amplifier
- 2
- Output Current
- 40mA
- (SR)
- 300V/ms
- Power Supply Voltage
- 3V~20V
- Static Current(Iq)
- 2mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LM2904 产品概述
一、概述
LM2904（Slkor 萨科微，SOP-8 封装）为双路低功耗通用运算放大器，适用于电池供电与工业控制场景。器件支持宽工作电源，单电源工作范围为 3V～20V，双电源对称工作范围为 -1.5V～10V。工作温度为 0℃～+70℃，静态电流低至 2mA（典型），每通道输出电流可达 40mA。
二、主要电气参数
- 共模抑制比（CMRR）：规格资料中有差异——典型可达 90dB，保证值或实际测得约 65dB（请按具体批次或数据手册确认）。
- 增益带宽积（GBP）：1MHz，适合低速放大与滤波应用。
- 压摆率（SR）：0.3V/µs（即 300V/ms），对阶跃信号响应有限，宜用于低频或慢变信号场合。
- 输入失调电压（Vos）：5mV，温漂 7µV/℃。
- 输入偏置电流（Ib）：300nA，输入失调电流（Ios）：50nA。
- 最大电源差（Vdd–Vss）：24V，输入电压范围 VIN min -0.3V 到 VIN max 24V（请勿超过绝对最大额定值）。
三、性能解读与特点
- 低功耗：Iq 2mA 级别，适合便携与电池供电系统。
- 双路配置：SOP-8 双运放设计，节省 PCB 面积并方便差动/双通道应用。
- 精度指标中等：Vos 5mV 与较低的带宽、压摆率说明本器件更适合直流增益、慢速积分与低频滤波，而不适合高速精密放大场合。
- 输入与输出限制：非轨到轨输入/输出（资料中未标称轨到轨特性），设计时应预留合适的共模与输出摆幅裕量。
四、典型应用场景
- 传感器前端信号放大（低频传感、温度/湿度传感器）。
- 低速滤波器、积分器与比较电路（非高速比较）。
- 电池管理与便携设备内的基准放大与缓冲。
- 工业控制中对速度要求不高的模拟处理模块。
五、使用建议与注意事项
- 电源去耦：在 Vcc/Vee 近端放置 0.1µF 陶瓷+10µF 电解电容，抑制供电噪声与振荡。
- 保护共模范围：避免将输入驱至接近或超出给定 VIN 范围（-0.3V / 24V）。
- 负载与散热：单路输出峰值可达 40mA，长期大电流输出会增加功耗与温升，应注意散热与功率限制。
- 精度校准：如需高精度测量，建议进行失调电压校准并考虑温漂影响。
- 适用环境：工作温度限制在 0℃～+70℃，极端环境需选用工业级器件或做降额设计。
总结：Slkor 标注的 LM2904 是一款面向低功耗、低频应用的双运放器件，兼顾通用性与成本效益。选型时请结合具体批次的数据手册与系统需求，关注 CMRR、输出摆幅与输入偏置等关键参数。
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