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High-Precision Voltage References with the Initial Accuracy of ±0.05% and Temperature Coefficient of 1.5 ppm/°C

25/10/2024

The TPR70 series voltage references are using the CMOS process. The series features an ultra-low temperature coefficient and ultra-high initial accuracy.

The TPR70 integrates a high-performance temperature drift control circuit. Within the temperature range of –40°C to 125°C, it achieves a typical temperature coefficient of just 1.5 ppm/°C. Therefore, it outperforms the high-precision voltage references TPR50 in terms of the temperature coefficient, reaching an internationally advanced level.

The TPR70 adopts a novel architecture that significantly enhances output voltage accuracy. The initial accuracy reaches ±0.05%, and the long-term drift is as low as 10 ppm/1,000 h, ensuring stable output accuracy during extended periods of operation.

Main Features

  • Wide Input Voltage Range: 7.5 V to 15 V
  • Fixed Output Voltage: 2.048 V, 2.5 V, 3 V, 3.3 V, 4.096 V, 5 V, and 10 V.
  • Low Temperature Coefficient:
    - 2.5 ppm/°C Typical from 0°C to 70°C
    - 1.5 ppm/°C Typical from –40°C to 125°C
  • High Initial Accuracy: 0.05% Maximum
  • Low Time Drift: 10 ppm Typical for the Initial 1,000 Hours
  • Low Noise: 1 μVpp/V
  • Wide Operating Temperature Range: –40°C to 125°C
  • Package: SOP8
Documents Tech question
3peak TPR70

High-Precision Voltage References with the Initial Accuracy of ±0.05% and Temperature Coefficient of 1.5 ppm/°C

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Documents

  • 3 Peak TPR70 Datasheet
Pexels thisisengineering 3913017

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