REF20-Q1
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
- Functional Safety-Capable
- Two Outputs, VREF and VREF / 2, for convenient use in single-supply systems
- Excellent temperature drift performance:
- 8 ppm/°C (maximum) from –40°C to 125°C
- High initial accuracy: ±0.05% (maximum)
- VREF and VBIAS tracking
overtemperature:
- 7 ppm/°C (maximum) 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 additional stable voltage in the middle of the analog-to-digital converter (ADC) input range to bias input bipolar signals. The REF20xx-Q1 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 REF20xx-Q1 offers excellent temperature drift (8 ppm/°C, maximum) and initial accuracy (0.05%) 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 7 ppm/°C (maximum) across the temperature range of –40°C to 125°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 applications.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | REF20xx-Q1 Low-Drift, Low-Power, Dual-Output, VREF and VREF / 2 Voltage References datasheet | PDF | HTML | 2021. 3. 16 | |
| 애플리케이션 노트 | Voltage Reference Selection and Design Tips For Data Converters (Rev. B) | PDF | HTML | 2024. 1. 9 | ||
| 기능 안전 정보 | REF20-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021. 8. 26 | ||
| e북 | Tips and tricks for designing with voltage references (Rev. A) | 2021. 5. 7 | |||
| 백서 | Simplifying Signal Chain Design for High Performance in Small Systems | 2020. 10. 22 | |||
| Application brief | Voltage Reference Solutions in Motor Control Drives | 2019. 7. 29 | |||
| 백서 | Voltage reference selection basics white paper (Rev. A) | 2018. 10. 23 |
설계 및 개발
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23-THN (DDC) | 5 | Ultra Librarian |