具有使能引脚的 1.2V 和可调节、0.2%、50ppm/°C 温漂、精密串联电压基准

LM4120 处于停产状态
请考虑从这些替代产品中选择一款:
open-in-new 比较替代产品
功能与比较器件相同且具有相同引脚
REF4132 正在供货 12ppm/°C 低噪声低功耗精密电压基准 Higher accuracy, better temperature coefficient and quiescent current
功能与比较器件相似
REF35 正在供货 650nA 静态电流、12ppm/°C 温漂、超低功耗精密电压基准 Replacement

产品详情

VO (V) 1.8, 2.048, 2.5, 3, 3.3, 4.048, 4.1, 5 Initial accuracy (max) (%) 0.2, 0.5 Temp coeff (max) (ppm/°C) 50 Vin (min) (V) 2 Vin (max) (V) 12 Iq (typ) (mA) 0.16 Rating Catalog Features Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 20 Iout/Iz (max) (mA) 5 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 2
VO (V) 1.8, 2.048, 2.5, 3, 3.3, 4.048, 4.1, 5 Initial accuracy (max) (%) 0.2, 0.5 Temp coeff (max) (ppm/°C) 50 Vin (min) (V) 2 Vin (max) (V) 12 Iq (typ) (mA) 0.16 Rating Catalog Features Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 20 Iout/Iz (max) (mA) 5 Operating temperature range (°C) -40 to 85 Shutdown current (ISD) (typ) (µA) 2
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Small SOT23-5 Package
  • Low Dropout Voltage: 120 mV Typical at 1 mA
  • High Output Voltage Accuracy: 0.2%
  • Source and Sink Current Output: ±5 mA
  • Supply Current: 160 µA Typical
  • Low Temperature Coefficient: 50 ppm/°C
  • Enable Pin
  • Fixed Output Voltages: 1.8, 2.048, 2.5, 3, 3.3,
    4.096, and 5 V
  • Industrial Temperature Range: −40°C to 85°C
  • (For Extended Temperature Range, −40°C to
    125°C, Contact TI)
  • Small SOT23-5 Package
  • Low Dropout Voltage: 120 mV Typical at 1 mA
  • High Output Voltage Accuracy: 0.2%
  • Source and Sink Current Output: ±5 mA
  • Supply Current: 160 µA Typical
  • Low Temperature Coefficient: 50 ppm/°C
  • Enable Pin
  • Fixed Output Voltages: 1.8, 2.048, 2.5, 3, 3.3,
    4.096, and 5 V
  • Industrial Temperature Range: −40°C to 85°C
  • (For Extended Temperature Range, −40°C to
    125°C, Contact TI)

The LM4120 device is a precision low-power, low dropout bandgap voltage reference with up to 5-mA output current source and sink capability.

This series reference operates with input voltages as low as 2 V and up to 12 V, consuming 160-µA (typical) supply current. In power-down mode, device current drops to less than 2 µA.

The LM4120 comes in two grades (A and Standard) and seven voltage options for greater flexibility. The best grade devices (A) have an initial accuracy of 0.2%, while the standard have an initial accuracy of 0.5%, both with a temperature coefficient of 50 ppm/°C ensured from −40°C to 125°C.

The very low dropout voltage, low supply current, and power-down capability of the LM4120 make this product an ideal choice for battery-powered and portable applications.

The device performance is ensured over the industrial temperature range (−40°C to 85°C), while certain specifications are ensured over the extended temperature range (−40°C to 125°C). Contact TI for full specifications over the extended temperature range. The LM4120 is available in a standard 5-pin SOT-23 package.

The LM4120 device is a precision low-power, low dropout bandgap voltage reference with up to 5-mA output current source and sink capability.

This series reference operates with input voltages as low as 2 V and up to 12 V, consuming 160-µA (typical) supply current. In power-down mode, device current drops to less than 2 µA.

The LM4120 comes in two grades (A and Standard) and seven voltage options for greater flexibility. The best grade devices (A) have an initial accuracy of 0.2%, while the standard have an initial accuracy of 0.5%, both with a temperature coefficient of 50 ppm/°C ensured from −40°C to 125°C.

The very low dropout voltage, low supply current, and power-down capability of the LM4120 make this product an ideal choice for battery-powered and portable applications.

The device performance is ensured over the industrial temperature range (−40°C to 85°C), while certain specifications are ensured over the extended temperature range (−40°C to 125°C). Contact TI for full specifications over the extended temperature range. The LM4120 is available in a standard 5-pin SOT-23 package.

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* 数据表 LM4120 Precision Micropower Low Dropout Voltage Reference 数据表 (Rev. F) PDF | HTML 2016年 3月 17日
应用手册 关于数据转换器的基准电压选择和设计提示 (Rev. B) PDF | HTML 英语版 (Rev.B) PDF | HTML 2024年 1月 10日
电子书 Tips and tricks for designing with voltage references (Rev. A) 2021年 5月 7日
白皮书 Voltage reference selection basics white paper (Rev. A) 2018年 10月 23日
技术文章 Trends in building automation: connected sensors in safety and security PDF | HTML 2016年 7月 20日
用户指南 LMP2021MAEVAL - Bridge Sensor Instrumentation Amp Evaluation Board User Guide (Rev. A) 2013年 4月 22日

设计和开发

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模拟工具

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参考设计

PMP21629 — 40-V to 80-V adjustable output voltage boost reference design for LiDAR applications

此参考设计使用非同步升压控制器提供 40V 至 80V 的可调节输出电压,能为负载提供最大 100mA 的电流。这是一款汽车设计,旨在为激光雷达系统等需要可调电压电源的各种应用供电。
测试报告: PDF
原理图: PDF
封装 引脚 下载
SOT-23 (DBV) 5 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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