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REF2030AIDDCR Datasheet(PDF) 1 Page - Texas Instruments |
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REF2030AIDDCR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 32 page INA213 VIN REF2030 VREF 3.0 V VBIAS 1.5 V EN ADC GND ISENSE RSHUNT VIN- VIN+ REF VOUT Power Supply -0.05 -0.04 -0.03 -0.02 -0.01 0 0.01 0.02 0.03 0.04 0.05 ±75 ±50 ±25 0 25 50 75 100 125 150 Temperature ( C) C001 V REF V BIAS Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design REF2025, REF2030, REF2033, REF2041 SBOS600B – MAY 2014 – REVISED JULY 2014 REF20xx Low-Drift, Low-Power, Dual-Output, VREF and VREF / 2 Voltage References 1 Features 3 Description Applications with only a positive supply voltage often 1 • Two Outputs, VREF and VREF / 2, for Convenient require additional stable voltage in the middle of the Use in Single-Supply Systems analog-to-digital converter (ADC) input range to bias • Excellent Temperature Drift Performance: input bipolar signals. The REF20xx provides a – 8 ppm/°C (max) from –40°C to 125°C reference voltage (VREF) for the ADC and a second highly-accurate voltage (VBIAS) that can be used to • High Initial Accuracy: ±0.05% (max) bias the input bipolar signals. • VREF and VBIAS Tracking over Temperature: The REF20xx offers excellent temperature drift – 6 ppm/°C (max) from –40°C to 85°C (8 ppm/°C, max) and initial accuracy (0.05%) on both – 7 ppm/°C (max) from –40°C to 125°C the VREF and VBIAS outputs while operating at a • Microsize Package: SOT23-5 quiescent current less than 430 µA. In addition, the VREF and VBIAS outputs track each other with a • Low Dropout Voltage: 10 mV precision of 6 ppm/°C (max) across the temperature • High Output Current: ±20 mA range of –40°C to 85°C. All these features increase • Low Quiescent Current: 360 μA the precision of the signal chain and decrease board space, while reducing the cost of the system as • Line Regulation: 3 ppm/V compared to a discrete solution. Extremely low • Load Regulation: 8 ppm/mA dropout voltage of only 10 mV allows operation from very low input voltages, which can be very useful in 2 Applications battery-operated systems. • Digital Signal Processing: Both the VREF and VBIAS voltages have the same – Power Inverters excellent specifications and can sink and source current equally well. Very good long-term stability and – Motor Controls low noise levels make these devices ideally-suited for • Current Sensing high-precision industrial applications. • Industrial Process Controls • Medical Equipment Device Information(1) PART NAME PACKAGE BODY SIZE (NOM) • Data Acquisition Systems REF20xx SOT (5) 2.90 mm × 1.60 mm • Single-Supply Systems (1) For all available packages, see the orderable addendum at the end of the datasheet. space space Application Example VREF and VBIAS vs Temperature 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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