WMSIC Electronic Components

RENESAS ISL21080DIH309Z-TK ISL21080DIH309Z

ModelISL21080DIH309Z-TK
PackageSOT-23-3
BrandRENESAS
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
RENESAS ISL21080DIH309Z-TK
Type
RENESAS
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
ISL21080DIH309Z-TK
Electronic Component
1
Package
SOT-23-3
Electronic Component
Voltage Reference IC
Electronic Component
±0.7%
Electronic Component
0.06g
Electronic Component
1
Electronic Component
BM0227363909
Operating Temperature
40℃~+85℃
Operating Voltage
2V~5.5V
Electronic Component
50ppm/℃
Output Voltage
900mV
Output Current
7mA
Output Type
Electronic Component

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

ISL21080DIH309Z-TK 产品概述

一、产品简介

ISL21080DIH309Z-TK 是一款面向精密测量和低功耗系统的系列电压基准 IC,封装为常用的 SOT-23-3 表面贴装形式,来自 RENESAS (瑞萨)。该器件为固定输出型电压基准,标准输出电压 0.9V,具有优良的长期稳定性和较低温漂,适合为 ADC、DAC、传感器前端及便携式仪器提供稳定的参考电压。

二、关键特性

  • 固定输出:0.9V(最小/固定值)
  • 精度(初始容差):±0.7%
  • 输出驱动能力:典型可提供 7mA 输出电流
  • 供电电流:仅 1.5µA(低静态电流,适合电池供电应用)
  • 输入电压范围:2.0V ~ 5.5V
  • 工作温度范围:-40°C ~ +85°C(TA)
  • 温度系数(TC):50 ppm/°C(典型)
  • 噪声性能:宽带噪声约 10 µVrms(指定频带),低频 0.1Hz ~ 10Hz 峰-峰噪声约 40 µVpp
  • 封装:SOT-23-3,表面贴装

三、电气性能亮点与应用意义

  • 低静态电流(1.5µA):非常适合对功耗敏感的便携或电池供电设备,在待机或低活动状态下参考源自身对系统电源消耗影响极小。
  • 良好的初始精度(±0.7%)与中等温漂(50 ppm/°C):适合大多数精密模拟前端与中高精度数据采集系统,能在宽温度范围内保持稳定参考。
  • 低噪声特性:尤其是 0.1Hz–10Hz 的低频噪声较小,可减少对高分辨率 ADC 或低频信号测量的影响,提升系统总体测量精度。
  • 0.9V 固定输出:对需要低压参考的系统(如某些低压 ADC 参考、直流偏置、基准比较器、低压供电的模拟子系统)非常适合。
  • 7mA 输出能力:可以直接驱动多个低功耗模拟电路或提供局部参考给若干输入通道,但不适合驱动大功率负载,应注意负载限制以维持精度与稳定性。

四、典型应用场景

  • 高精度 ADC / DAC 参考电源(便携式采集仪、手持测试仪)
  • 传感器信号调理与零点漂移校正(温度传感器、应变计、气体传感器等)
  • 精密比较器与阈值产生电路
  • 低电压模拟偏置、参考电平源(比如低压差分放大器参考)
  • 电池供电设备与 IoT 终端的低功耗基准源

五、布局与使用建议

  • 放置位置:尽量将基准输出与相关 ADC/模拟输入的参考引脚靠近放置,避免长距离走线引入噪声与电压降。
  • 去耦与滤波:在输出端根据应用需要增加小容量的去耦/滤波元件,以降低外界干扰。低噪声场合可在输出加 RC 滤波器,注意滤波会影响瞬态响应。
  • 接地管理:建议在基准器件附近使用局部地平面或单点接地,避免地环路对参考稳定性的影响。
  • 负载注意:虽然器件可提供高达 7mA 的输出电流,长期在高输出电流下工作可能影响精度与温升,应尽量减小负载或使用缓冲放大器。
  • 热源隔离:SOT-23-3 封装热阻有限,应避免将器件置于热源(如大电流 MOSFET、稳压器散热区域)附近,以防环境温度变化影响参考稳定性。

六、封装与采购提示

  • 封装形式为 SOT-23-3,适用于自动贴装与常见 PCB 生产流程。
  • 型号后缀(例如 -TK)通常用于表明包装形式(卷带/盘带)以便 SMT 贴装,但具体含义请参照供应商数据手册或采购说明。建议在批量采购前确认芯片完整料号和包装形式以避免差异。

七、选型建议与对比参考

  • 若需更低温漂或更高初始精度,可考虑精密参考系列(更低 ppm/°C 与更小初始误差);但这些通常牺牲功耗或成本。
  • 若应用对输出电压要求不同(如常见 1.2V、1.25V、2.048V 等),则应选择对应电压等级的基准器件。
  • 对于高驱动、电源稳压或低阻抗参考需求,可在基准后加运放缓冲以扩展驱动能力并降低源阻。

八、快速规格汇总

  • 输出电压:0.9V(固定)
  • 初始容差:±0.7%
  • 温度系数:50 ppm/°C
  • 输出电流(最大):7mA
  • 供电电流:1.5µA
  • 输入电压范围:2.0V~5.5V
  • 工作温度:-40°C~+85°C
  • 噪声:宽带约 10 µVrms,0.1Hz–10Hz 峰-峰约 40 µVpp
  • 封装:SOT-23-3(表面贴装)

如需进一步的电路典型应用图、封装引脚图或完整电气特性曲线,请提供是否需要英文数据手册或具体应用条件(供电、电流负载、温度环境),便可给出更精确的设计建议。

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