Product details

VO (V) 2.5, 1.25, 3.0, 1.5, 3.3, 1.65, 4.096, 2.048 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 8 Vin (Min) (V) 2.52 Vin (Max) (V) 5.5 Iq (Typ) (uA) 360 Rating Automotive TI functional safety category Functional Safety-Capable Features Multiple outputs, Enable pin Iout/Iz (Max) (mA) 20 Operating temperature range (C) -40 to 125 Shutdown current (ISD) (Typ) (uA) 3.3
VO (V) 2.5, 1.25, 3.0, 1.5, 3.3, 1.65, 4.096, 2.048 Initial accuracy (Max) (%) 0.05 Temp coeff (Max) (ppm/ degree C) 8 Vin (Min) (V) 2.52 Vin (Max) (V) 5.5 Iq (Typ) (uA) 360 Rating Automotive TI functional safety category Functional Safety-Capable Features Multiple outputs, Enable pin Iout/Iz (Max) (mA) 20 Operating temperature range (C) -40 to 125 Shutdown current (ISD) (Typ) (uA) 3.3
SOT-23-THN (DDC) 5 8 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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Type Title Date
* Data sheet REF20xx-Q1 Low-Drift, Low-Power, Dual-Output, VREF and VREF / 2 Voltage References datasheet 16 Mar 2021
Functional safety information REF20-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 26 Aug 2021

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