Texas Instruments REF1941
The REF19xx 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 REF19xx offers excellent temperature drift (25 ppm/°C, max) and initial accuracy (0.1%) on both the VREF and VBIAS outputs while operating at a quiescent current less than 430 µA.| Part No. | REF1941 |
|---|---|
| Datasheet | REF1941 Download |
| Manufacturer |  Texas Instruments |
| Description | Voltage References |
| Buy | Stock & Price |
FEATURES
●1 Two Outputs, VREF and VREF / 2, for Convenient Use in Single-Supply Systems● Excellent Temperature Drift Performance: – 25 ppm/°C (max) from –40°C to 125°C
● High Initial Accuracy: ±0.1% (max)
● VREF and VBIAS Tracking over Temperature: – 6 ppm/°C (max) from –40°C to 85°C – 7 ppm/°C (max) 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 2
APPLICATIONS
● Digital Signal Processing: – Power Inverters – Motor Controls● Current Sensing
● Industrial Process Controls
● Medical Equipment
● Data Acquisition Systems
● Single-Supply Systems 3
DESCRIPTION
APPLICATIONS
with only a positive supply voltage often require an additional stable voltage in the middle of the analog-to-digital converter (ADC) input range to bias input bipolar signals. In addition, the VREF and VBIAS outputs track each other with a precision of 6 ppm/°C (max) across the temperature range of –40°C to 85°C.
