REF1930
- Two Outputs, VREF and VREF / 2, for Convenient Use in Single-Supply Systems
- Excellent Temperature Drift Performance:
- 25 ppm/°C (max) from –40°C to 125°C
- High Initial Accuracy: ±0.1% (max)
- VREF and VBIAS Tracking over Temperature:
- 6 ppm/°C (max) from –40°C to 85°C
- 7 ppm/°C (max) from –40°C to 125°C
- Microsize Package: SOT23-5
- Low Dropout Voltage: 10 mV
- High Output Current: ±20 mA
- Low Quiescent Current: 360 µA
- Line Regulation: 3 ppm/V
- Load Regulation: 8 ppm/mA
Applications with only a positive supply voltage often require an additional stable voltage in the middle of the analog-to-digital converter (ADC) input range to bias input bipolar signals. The REF19xx provides a reference voltage (VREF) for the ADC and a second highly-accurate voltage (VBIAS) that can be used to bias the input bipolar signals.
The REF19xx offers excellent temperature drift (25 ppm/°C, max) and initial accuracy (0.1%) on both the VREF and VBIAS outputs while operating at a quiescent current less than 430 µA. In addition, the VREF and VBIAS outputs track each other with a precision of 6 ppm/°C (max) across the temperature range of –40°C to 85°C. All these features increase the precision of the signal chain and decrease board space, while reducing the cost of the system as compared to a discrete solution. Extremely low dropout voltage of only 10 mV allows operation from very low input voltages, which can be very useful in battery-operated systems.
Both the VREF and VBIAS voltages have the same excellent specifications and can sink and source current equally well. Very good long-term stability and low noise levels make these devices ideally-suited for high-precision industrial applications.
관심 가지실만한 유사 제품
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | Low-Drift, Low-Power, Dual-Output, VREF and VREF / 2 Voltage References datasheet (Rev. A) | PDF | HTML | 2017. 1. 3 | |
| 애플리케이션 노트 | Voltage Reference Selection and Design Tips For Data Converters (Rev. B) | PDF | HTML | 2024. 1. 9 | ||
| e북 | Tips and tricks for designing with voltage references (Rev. A) | 2021. 5. 7 | |||
| e북 | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 2019. 6. 28 | |||
| 백서 | Voltage reference selection basics white paper (Rev. A) | 2018. 10. 23 |
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
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