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REF54

現行

0.8ppm/°C 漂移 (最大)、0.11 ppmp-p 1/f 雜訊、380 μA 電流精密電壓參考

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產品規格表

REF54

現行
產品規格表 立即訂購

產品詳細資料

VO (V) 2.5 Initial accuracy (max) (%) 0.02 Temp coeff (max) (ppm/°C) 0.8 Vin (min) (V) 2.7 Vin (max) (V) 18 Iq (typ) (mA) 0.26 Rating Catalog Features Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 1.125 Iout/Iz (max) (mA) 10 Operating temperature range (°C) 0 to 70 Shutdown current (ISD) (typ) (µA) 5
VO (V) 2.5 Initial accuracy (max) (%) 0.02 Temp coeff (max) (ppm/°C) 0.8 Vin (min) (V) 2.7 Vin (max) (V) 18 Iq (typ) (mA) 0.26 Rating Catalog Features Enable pin LFN 0.1 to 10 Hz (typ) (µVPP) 1.125 Iout/Iz (max) (mA) 10 Operating temperature range (°C) 0 to 70 Shutdown current (ISD) (typ) (µA) 5
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Low temperature drift coefficient:
    • 0.8 ppm/°C maximum (C grade, 0°C to 70°C)
    • 1.5 ppm/°C maximum (Q grade, -40°C to 125°C)
  • Low noise (0.1 Hz to 10 Hz):
    • 0.11 ppmp-p with CNR = 100 µF
    • 0.45 ppmp-p with CNR = Open
  • High accuracy: ±0.02% maximum
  • Low quiescent current: 380 µA maximum
  • Low long-term stability (1k hr): 25 ppm
  • Designed for a wide range of applications:
    • Wide input voltage up to 18 V
    • Output current: ±10 mA
    • Voltage options: 2.5 V, 3 V, 4.096 V, 4.5 V, 5 V
  • Fit for all design requirement:
    • Stable with 1-µF to 100-µF output low-ESR capacitor
    • High PSRR: 100 dB at 1 kHz
    • Operating temperature range: −40°C to +125°C
    • Pin-to-pin to REF50xx family when TEMP pin is not used
  • Low temperature drift coefficient:
    • 0.8 ppm/°C maximum (C grade, 0°C to 70°C)
    • 1.5 ppm/°C maximum (Q grade, -40°C to 125°C)
  • Low noise (0.1 Hz to 10 Hz):
    • 0.11 ppmp-p with CNR = 100 µF
    • 0.45 ppmp-p with CNR = Open
  • High accuracy: ±0.02% maximum
  • Low quiescent current: 380 µA maximum
  • Low long-term stability (1k hr): 25 ppm
  • Designed for a wide range of applications:
    • Wide input voltage up to 18 V
    • Output current: ±10 mA
    • Voltage options: 2.5 V, 3 V, 4.096 V, 4.5 V, 5 V
  • Fit for all design requirement:
    • Stable with 1-µF to 100-µF output low-ESR capacitor
    • High PSRR: 100 dB at 1 kHz
    • Operating temperature range: −40°C to +125°C
    • Pin-to-pin to REF50xx family when TEMP pin is not used

The REF54 is a family of high precision, low-drift, low current consumption series voltage reference devices. The REF54 family offers low temperature drift coefficient (0.8 ppm/°C), low noise (0.11 ppmp-p) and high accuracy (±0.02%) while consuming 260 µA current. The REF54 with low long-term drift (25 ppm), excellent load and line regulation helps meet strict performance requirements of high precision applications. The device family is designed as a companion device for high-resolution data converters such as ADS8900B, ADS127L11, ADS1285 and DAC11001B.

The REF54 family supports wide supply voltage rating of 18 V. This also protects the device in case of power supply IC failure. The REF54 device supports up to 10 mA load current. The wide load current support allows for direct connection of REF54 as power supply to precision sensors.

The REF54 is specified for the two temperature ranges, C grade is specified for 0°C to 70°C and Q grade is specified for -40°C to +125°C . The wide temperature range enables operation across various industrial applications.

The REF54 is a family of high precision, low-drift, low current consumption series voltage reference devices. The REF54 family offers low temperature drift coefficient (0.8 ppm/°C), low noise (0.11 ppmp-p) and high accuracy (±0.02%) while consuming 260 µA current. The REF54 with low long-term drift (25 ppm), excellent load and line regulation helps meet strict performance requirements of high precision applications. The device family is designed as a companion device for high-resolution data converters such as ADS8900B, ADS127L11, ADS1285 and DAC11001B.

The REF54 family supports wide supply voltage rating of 18 V. This also protects the device in case of power supply IC failure. The REF54 device supports up to 10 mA load current. The wide load current support allows for direct connection of REF54 as power supply to precision sensors.

The REF54 is specified for the two temperature ranges, C grade is specified for 0°C to 70°C and Q grade is specified for -40°C to +125°C . The wide temperature range enables operation across various industrial applications.

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類型 標題 日期
* Data sheet REF54 0.8 ppm/°C Maximum Drift, 0.11 ppmp-p 1/f Noise, 380 μA Current, Precision Voltage Reference datasheet (Rev. A) PDF | HTML 2023年 12月 12日
Technical article 選擇低雜訊電壓參考以提升 X 光影像解析度 PDF | HTML 2024年 1月 22日
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 2024年 1月 9日
Application note Techniques for Noise Measurements in Precision Series References PDF | HTML 2023年 12月 12日
Certificate REF54EVM EU Declaration of Conformity (DoC) 2023年 7月 26日
E-book Tips and tricks for designing with voltage references (Rev. A) 2021年 5月 7日
White paper Voltage reference selection basics white paper (Rev. A) 2018年 10月 23日

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開發板

REF54EVM — 具有低雜訊和低漂移，且適用於低功耗高精密度電壓參考的 REF54 評估模組

REF54 評估模組 (EVM) 是精密電壓參考 EVM，可展示 REF54 系列高精密度、低漂移、低電流消耗串聯電壓參考產品的性能。REF54 系列提供 0.5 ppm/°C 的低溫度漂移係數、透過 NR 針腳處的 100-μF 電容器實現低閃爍雜訊 0.16 ppm p-p，以及 ±0.02% 的高準確度，同時消耗 260-μA 電流

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