WMSIC Electronic Components

TECH PUBLIC TPAD8628ARTZ

ModelTPAD8628ARTZ
PackageSOT-23-5
BrandTECH PUBLIC
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TECH PUBLIC TPAD8628ARTZ
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
TPAD8628ARTZ
Electronic Component
1
Package
SOT-23-5
Electronic Component
Precision Op Amp
Electronic Component
0.039g
Electronic Component
1
Electronic Component
Output
Features
Electronic Component
Electronic Component
BM0229925046
Operating Temperature
50℃~+125℃
Output Current
30mA
(SR)
5V/us
Power Supply Voltage
2V~5.5V
Static Current(Iq)
600uA

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

TPAD8628ARTZ 产品概述

TPAD8628ARTZ 是台舟电子(TECH PUBLIC)推出的一款低电压、轨到轨输入/输出的精密运算放大器,采用紧凑的 SOT-23-5 封装。器件在极低偏置电流和超低失调电压条件下仍能保持良好的共模抑制与稳定性,适合便携式、精密测量与信号调理等应用。

一、主要特性

  • 增益带宽积(GBP):6 MHz,适用于中等带宽的放大与滤波应用。
  • 压摆率(SR):5 V/μs,可满足常见信号边沿与驱动需求。
  • 输出电流能力:典型 30 mA,能驱动小功率负载与后级模拟电路。
  • 轨到轨输入与轨到轨输出,支持 2 V ~ 5.5 V 单电源工作,利于低电压系统设计。
  • 输入偏置电流(Ib):500 pA,输入失调电流(Ios):50 pA,适合高阻传感器接口。
  • 输入失调电压(Vos):2 μV,温漂(Vos TC):30 nV/°C,表现出极高的直流精度与长期稳定性。
  • 共模抑制比(CMRR):130 dB,差分精度优异。
  • 静态电流(Iq):600 μA,适中功耗,兼顾性能与电池寿命。
  • 工作温度范围:-50 ℃ 至 +125 ℃,适用于工业级环境。
  • 最大电源差:5.5 V,支持双电源对称 ±1 V ~ ±2.75 V 工作。

二、典型应用场景

  • 传感器前端信号放大(电流/电压传感器、热电偶、应变片等)。
  • 精密数据采集放大器、低漂移差分放大器和仪表放大器前级。
  • 便携式医疗设备与生物电信号调理(受益于低失调与低漂移特性)。
  • 主动滤波器、积分器与低频精密运算放大功能模块。
  • 单电源低压系统中的驱动级和缓冲级。

三、电气参数要点(设计参考)

  • 对于精密直流测量,2 μV 的输入失调与 30 nV/℃ 的失调漂移能够把器件引入的直流误差降到最低。
  • 500 pA 的输入偏置电流在高阻源阻抗下仍可能引入电压误差,建议在高阻电路中采用守护环或降低输入源阻抗以抑制偏置引起的误差。
  • 6 MHz 的 GBP 与 5 V/μs 的压摆率允许在闭环增益下实现较快响应,但不适合高频或大电流驱动的高带宽应用。
  • 30 mA 输出电流适合驱动滤波器、电容负载和小型执行器,但对重负载或长导线驱动需加缓冲或功放级。

四、封装与环境适应

  • 封装:SOT-23-5,尺寸小、易于表面组装,适合空间受限的设计与批量生产。
  • 工作温度:-50 ℃ 至 +125 ℃,满足大多数工业与航天级温度要求。
  • 电源兼容性:支持 2 V ~ 5.5 V 单电源以及 ±1 V ~ ±2.75 V 双电源结构,设计灵活。

五、布局与使用建议

  • 电源引脚附近放置 0.01 μF~0.1 μF 陶瓷去耦电容,靠近封装焊盘以抑制瞬态。
  • 对于高阻输入源,保持 PCB 清洁并考虑使用 guard ring(守护环)或短输入走线,避免泄漏电流影响精度。
  • 反馈与偏置网络中尽量匹配阻值,减少由输入失调电流引起的误差;对于极精密场合,限制源阻抗在可控范围(例如 <1 MΩ)。
  • 若需驱动容性负载或更大电流,建议在输出端加入阻性或小电阻串联抑制振铃,并评估热耗散条件。

六、优势与选型建议

TPAD8628ARTZ 在小封装上实现了低失调、低漂移、轨到轨 I/O 与宽温度范围的综合特性,尤其适合对直流精度与低电流偏置有较高要求的便携和工业应用。对于需要更高带宽或大电流驱动的场合,可考虑功率级配合使用;对于极高输入阻抗的传感器前端,需在布局与电路结构上做相应防护以发挥器件最佳性能。

如需样片支持、封装资料或器件引脚图与典型应用电路,建议联系供应商获取完整器件数据手册与评估板资料。

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