产品详细信息

VO (V) 2.5 Initial accuracy (Max) (%) 0.025 Temp coeff (Max) (ppm/ degree C) 2 Rating Catalog Vin (Min) (V) 3 Vin (Max) (V) 18 Iq (Typ) (uA) 4000 Features Enable pin Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 Shutdown current (ISD) (Typ) (uA) 5
VO (V) 2.5 Initial accuracy (Max) (%) 0.025 Temp coeff (Max) (ppm/ degree C) 2 Rating Catalog Vin (Min) (V) 3 Vin (Max) (V) 18 Iq (Typ) (uA) 4000 Features Enable pin Iout/Iz (Max) (mA) 10 Operating temperature range (C) -40 to 125 Shutdown current (ISD) (Typ) (uA) 5
LCCC (FKH) 8 LCCC (FKH) 8 25 mm² 5 x 5
  • Low noise enables precision measurements:
    • 1/f Noise (0.1 Hz to 10 Hz): 0.23 ppmp-p
    • 10 Hz to 1 kHz: 0.35 ppmrms
  • Low temperature drift coefficient:
    • 2 ppm/°C maximum (-40°C to 125°C)
  • High accuracy: ±0.025% maximum
  • Humidity resistant hermetic ceramic package (LCCC)
  • Low long-term stability (1k hr): 28 ppm
  • Low dropout: 400 mV
  • Designed for a wide range of applications:
    • Wide input voltage up to 18 V
    • Output current: ±10 mA
    • Voltage options: 1.25 V, 2.5 V, 3 V, 3.3 V, 4.096 V, 5 V
  • Ultra-flexible solution:
    • Stable with 1-µF to 100-µF output low-ESR capacitor
    • High PSRR: 107 dB at 1 kHz
    • Operating temperature range: −40°C to +125°C
  • Low noise enables precision measurements:
    • 1/f Noise (0.1 Hz to 10 Hz): 0.23 ppmp-p
    • 10 Hz to 1 kHz: 0.35 ppmrms
  • Low temperature drift coefficient:
    • 2 ppm/°C maximum (-40°C to 125°C)
  • High accuracy: ±0.025% maximum
  • Humidity resistant hermetic ceramic package (LCCC)
  • Low long-term stability (1k hr): 28 ppm
  • Low dropout: 400 mV
  • Designed for a wide range of applications:
    • Wide input voltage up to 18 V
    • Output current: ±10 mA
    • Voltage options: 1.25 V, 2.5 V, 3 V, 3.3 V, 4.096 V, 5 V
  • Ultra-flexible solution:
    • Stable with 1-µF to 100-µF output low-ESR capacitor
    • High PSRR: 107 dB at 1 kHz
    • Operating temperature range: −40°C to +125°C

The REF70 is a family of high precision series voltage references that offers the industry’s lowest noise (0.23 ppmp-p), very low temperature drift coefficient (2 ppm/°C), and high accuracy (±0.025%). The REF70 offers a high PSRR, low drop-out voltage and excellent load and line regulation to help meet strict transient requirements. This combination of precision and features is designed for applications such as test and measurement that demand a precise reference to be paired with precision, high-resolution data converters such as ADS8900B, ADS127L01 and DAC11001A, to achieve optimal performance in the signal chain. The REF70 is also designed for noise-sensitive medical applications such as ultrasound and X-ray to help enable low-noise measurements from the analog front end.

The REF70 family is available in VSSOP and LCCC package options. The LCCC (FKH) package is a hermetically sealed ceramic package that allows for low, long-term drift for applications that require a stable reference over a long time period without calibration.

The REF70 is specified for the wide temperature range of −40°C to +125°C. The wide temperature range enables operation across various industrial applications.

The REF70 is a family of high precision series voltage references that offers the industry’s lowest noise (0.23 ppmp-p), very low temperature drift coefficient (2 ppm/°C), and high accuracy (±0.025%). The REF70 offers a high PSRR, low drop-out voltage and excellent load and line regulation to help meet strict transient requirements. This combination of precision and features is designed for applications such as test and measurement that demand a precise reference to be paired with precision, high-resolution data converters such as ADS8900B, ADS127L01 and DAC11001A, to achieve optimal performance in the signal chain. The REF70 is also designed for noise-sensitive medical applications such as ultrasound and X-ray to help enable low-noise measurements from the analog front end.

The REF70 family is available in VSSOP and LCCC package options. The LCCC (FKH) package is a hermetically sealed ceramic package that allows for low, long-term drift for applications that require a stable reference over a long time period without calibration.

The REF70 is specified for the wide temperature range of −40°C to +125°C. The wide temperature range enables operation across various industrial applications.

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类型 标题 下载最新的英文版本 日期
* 数据表 REF70 2 ppm/°C Maximum Drift, 0.23 ppmp-p 1/f Noise, Precision Voltage Reference 数据表 (Rev. C) 2021年 7月 30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. A) 下载英文版本 (Rev.A) 2021年 7月 15日
技术文章 How to design an accurate DC power supply 2021年 4月 8日
用户指南 REF70EVM Ultra Precision Voltage Reference EVM 2020年 10月 2日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日

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有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

评估板

REF70EVM — REF70 具有低噪声和低漂移的超高精度电压基准评估模块

REF70 评估模块 (EVM) 是一款评估 REF70 产品性能的平台,该产品具有超低噪声,并采用高精度电压基准。REF70 提供 0.23ppmp-p 的超低 1/f 工作噪声,同时可在 2ppm/C 温度下维持非常精准的电压输出。REF70EVM 支持 REF70 系列的默认配置及其封装选项型号。

要获得详细信息和其他配置,请参阅 REF70 数据表。

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封装 引脚 下载
LCCC (FKH) 8 了解详情

订购与质量

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/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

支持与培训

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