REF54
0.8ppm/°C drift (max), 0.11ppmp-p 1/f noise, 380μA current precision voltage reference
REF54
- Low temperature drift coefficient:
- 0.8ppm/°C maximum (C grade, 0°C to 70°C)
- 1.5ppm/°C maximum (Q grade, –40°C to 125°C)
- Low noise (0.1Hz to 10Hz):
- 0.11ppmp-p with CNR = 100µF
- 0.45ppmp-p with CNR = Open
- High accuracy: ±0.02% maximum
- Low quiescent current: 380µA maximum
- Low long-term stability (1k hr): 25ppm
- Designed for a wide range of applications:
- Wide input voltage up to 18V
- Output current: ±10mA
- Voltage options: 2.5V, 3V, 4.096V, 4.5V, 5V
- Fit for all design requirement:
- Stable with 1µF to 100µF output low-ESR capacitor
- High PSRR: 100dB at 1kHz
- 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 (0.8ppm/°C), low noise (0.11ppmp-p) and high accuracy (±0.02%) while consuming 260µA current. The REF54 with low long-term drift (25ppm), 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 10mA 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.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | REF54 0.8ppm/°C Maximum Drift, 0.11ppmp-p 1/f Noise, 380μA Current, Precision Voltage Reference datasheet (Rev. B) | PDF | HTML | 21 Jun 2024 |
Technical article | Increasing X-Ray Image Resolution by Choosing Low-Noise Voltage References | PDF | HTML | 22 Jan 2024 | |
Technical article | 選擇低雜訊電壓參考以提升 X 光影像解析度 | PDF | HTML | 22 Jan 2024 | |
Technical article | 저잡음 전압 레퍼런스를 선택하여 X선 이미지 해상도 향상 | PDF | HTML | 22 Jan 2024 | |
Application note | Voltage Reference Selection and Design Tips For Data Converters (Rev. B) | PDF | HTML | 09 Jan 2024 | |
Application note | Techniques for Noise Measurements in Precision Series References | PDF | HTML | 12 Dec 2023 | |
Certificate | REF54EVM EU Declaration of Conformity (DoC) | 26 Jul 2023 | ||
E-book | Tips and tricks for designing with voltage references (Rev. A) | 07 May 2021 | ||
White paper | Voltage reference selection basics white paper (Rev. A) | 23 Oct 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
REF54EVM — REF54 evaluation module for low-power high precision voltage reference with low noise and drift
The REF54 evaluation module (EVM) is a precision voltage reference EVM that demonstrates the performance of the REF54 family of high precision, low drift, low current consumption series voltage reference devices. The REF54 family offers low temperature drift coefficient of 0.5 ppm/°C, low flicker (...)
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Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SOIC (D) | 8 | Ultra Librarian |
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