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REF20-Q1

現行

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產品規格表

REF20-Q1

現行
產品規格表 立即訂購

產品詳細資料

VO (V) 2.5, 3, 3.3, 4.096 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 8 Vin (min) (V) 2.52 Vin (max) (V) 5.5 Iq (typ) (mA) 0.36 Rating Automotive TI functional safety category Functional Safety-Capable Features Enable pin, Multiple outputs LFN 0.1 to 10 Hz (typ) (µVPP) 30 Iout/Iz (max) (mA) 20 Operating temperature range (°C) -40 to 125 Shutdown current (ISD) (typ) (µA) 3.3
VO (V) 2.5, 3, 3.3, 4.096 Initial accuracy (max) (%) 0.05 Temp coeff (max) (ppm/°C) 8 Vin (min) (V) 2.52 Vin (max) (V) 5.5 Iq (typ) (mA) 0.36 Rating Automotive TI functional safety category Functional Safety-Capable Features Enable pin, Multiple outputs LFN 0.1 to 10 Hz (typ) (µVPP) 30 Iout/Iz (max) (mA) 20 Operating temperature range (°C) -40 to 125 Shutdown current (ISD) (typ) (µA) 3.3
SOT-23-THN (DDC) 5 8.12 mm² 2.9 x 2.8
  • 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
  • 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.

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.
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類型 標題 日期
* Data sheet REF20xx-Q1 Low-Drift, Low-Power, Dual-Output, VREF and VREF / 2 Voltage References datasheet PDF | HTML 2021年 3月 16日
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 2024年 1月 9日
Functional safety information REF20-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2021年 8月 26日
E-book Tips and tricks for designing with voltage references (Rev. A) 2021年 5月 7日
White paper Simplifying Signal Chain Design for High Performance in Small Systems 2020年 10月 22日
Application note Precision Current Sources and Sinks Using Voltage References 2020年 6月 30日
Application brief Voltage Reference Solutions in Motor Control Drives 2019年 7月 29日
White paper Voltage reference selection basics white paper (Rev. A) 2018年 10月 23日

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