REF2030 Series

3-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference

Catalog

3-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference

Part	Output Type	Voltage - Input [Max]	Voltage - Input [Min]	Mounting Type	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Operating Temperature [Min]	Operating Temperature [Max]	Current - Supply	Current - Output	Reference Type	Temperature Coefficient	Package / Case	Tolerance	Supplier Device Package	Noise - 0.1Hz to 10Hz
Texas Instruments REF2030AIDDCR	1.81 mOhm	5.5 V	3.02 V	Surface Mount	3 V	1.5 V	-40 °C	125 °C	460 µA	20 mA	Series	8 ppm/°C	SOT-23-5 Thin TSOT-23-5	0.05 %	SOT-23-THIN	12 µVp-p
Texas Instruments REF2030AIDDCT	1.81 mOhm	5.5 V	3.02 V	Surface Mount	3 V	1.5 V	-40 °C	125 °C	460 µA	20 mA	Series	8 ppm/°C	SOT-23-5 Thin TSOT-23-5	0.05 %	SOT-23-THIN	12 µVp-p

Catalog

3-V Vref, low-drift, low-power, dual-output Vref & Vref/2 voltage reference

Key Features

• Two outputs, VREFand VREF/ 2, for convenient use in single-supply systemsExcellent temperature drift performance:8 ppm/°C (maximum) from –40°C to 125°CHigh initial accuracy: ±0.05% (maximum)VREFand VBIAStracking overtemperature:6 ppm/°C (maximum) from –40°C to 85°C7 ppm/°C (maximum) from –40°C to 125°CMicrosize package: SOT23-5Low dropout voltage: 10 mVHigh output current: ±20 mALow quiescent current: 360 µALine regulation: 3 ppm/VLoad regulation: 8 ppm/mAMatte-Sn version (REF2025AISDDCR) for improved corrosion resistance in the Battelle Class III and similar harsh environmentsTwo outputs, VREFand VREF/ 2, for convenient use in single-supply systemsExcellent temperature drift performance:8 ppm/°C (maximum) from –40°C to 125°CHigh initial accuracy: ±0.05% (maximum)VREFand VBIAStracking overtemperature:6 ppm/°C (maximum) from –40°C to 85°C7 ppm/°C (maximum) from –40°C to 125°CMicrosize package: SOT23-5Low dropout voltage: 10 mVHigh output current: ±20 mALow quiescent current: 360 µALine regulation: 3 ppm/VLoad regulation: 8 ppm/mAMatte-Sn version (REF2025AISDDCR) for improved corrosion resistance in the Battelle Class III and similar harsh environments

Description

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 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 offers excellent temperature drift (8 ppm/°C, maximum) and initial accuracy (0.05%) on both the VREFand VBIASoutputs while operating at a quiescent current less than 430 µA. In addition, the VREFand VBIASoutputs track each other with a precision of 6 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 VREFand VBIASvoltages 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. 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 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 offers excellent temperature drift (8 ppm/°C, maximum) and initial accuracy (0.05%) on both the VREFand VBIASoutputs while operating at a quiescent current less than 430 µA. In addition, the VREFand VBIASoutputs track each other with a precision of 6 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 VREFand VBIASvoltages 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.