WMSIC Electronic Components

RICHTEK RT9146ZQW

ModelRT9146ZQW
Package8-WDFN(3x3)
BrandRICHTEK
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
RICHTEK RT9146ZQW
Type
RICHTEK
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RICHTEK
Electronic Component
RT9146ZQW
Electronic Component
1
Package
8-WDFN(3x3)
Electronic Component
Operational Amplifier
Electronic Component
0.127g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0265000471
Operating Temperature
40℃~+85℃
Amplifier
1
Output Current
1A
(SR)
35V/us
Power Supply Voltage
6V~20V

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

RT9146ZQW 产品概述

一、概述

RT9146ZQW 是 RICHTEK(台湾立锜)推出的一款单路运算放大器,采用 8 引脚 WDFN-8(3x3)封装。器件支持轨到轨输入与轨到轨输出,设计用于单电源工作环境,电源电压范围宽(6V 到 20V),最大电源差可达 20V。内部完成补偿,便于在各种增益配置下稳定工作。

二、主要规格

  • 放大器通道:1 路
  • 单电源电压:6V ~ 20V(最大电源差 20V)
  • 轨到轨输入/输出:支持全轨范围信号处理
  • 增益带宽积(GBW):12 MHz
  • 压摆率(SR):35 V/μs
  • 输入失调电压(Vos):15 mV(典型/最大视具体测试条件)
  • 输入偏置电流(Ib):50 nA
  • 共模抑制比(CMRR):95 dB
  • 工作电流(Iq):4 mA
  • 输出电流能力:1 A(驱动能力强,具体功率与散热相关)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 内置补偿:支持单级放大器稳定性优化

三、性能亮点

  • 宽电源电压范围与轨到轨特性,适合电池供电与工业设备的单电源方案;
  • 35 V/μs 的高压摆率与 12 MHz GBW,适合对带宽和快速边沿有要求的信号链;
  • 低静态电流(4 mA)与低输入偏置电流(50 nA),在保持响应性能的同时兼顾功耗与高阻抗源接口;
  • 1 A 输出电流使其在驱动小负载或作为缓冲放大器时具有优势,但需注意封装散热限制。

四、典型应用

  • 传感器信号调理与缓冲(电流源/电压源接口);
  • 精密放大与滤波前端(活动滤波器、仪表放大器前级);
  • 驱动小功率继电器或较大容性负载的缓冲级;
  • 工业控制、数据采集和电池供电系统中需要宽电源和轨到轨性能的场合。

五、封装与布局建议

  • 封装:8-WDFN(3x3),适合高密度布局,但需良好散热设计;
  • 布局建议:尽量将旁路电容靠近电源引脚放置,输入路径短且屏蔽,提供良好的地回流,减小寄生和振铃;大输出电流工况下注意底板散热与焊盘过孔布局。

六、设计注意事项

  • 输出 1 A 为器件的驱动能力指标,长时间大电流输出会增加封装温升,应评估热阻并采取散热措施;
  • 在高速或大摆率应用中,注意输入与输出回路的阻抗匹配与去耦,避免振荡;
  • 对失调电压和偏置电流敏感的测量场合,应预留调零或采用差分方案提升精度。

RT9146ZQW 提供了在宽电源范围、轨到轨性能和较高瞬态响应之间的良好平衡,适合需要快速、宽带且能驱动较大负载的模拟前端设计。

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