REF2033AIDDCT
Active3.3-V VREF, LOW-DRIFT, LOW-POWER, DUAL-OUTPUT VREF & VREF/2 VOLTAGE REFERENCE
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REF2033AIDDCT
Active3.3-V VREF, LOW-DRIFT, LOW-POWER, DUAL-OUTPUT VREF & VREF/2 VOLTAGE REFERENCE
Technical Specifications
Parameters and characteristics for this part
| Specification | REF2033AIDDCT |
|---|---|
| Current - Output | 20 mA |
| Current - Supply | 460 µA |
| Mounting Type | Surface Mount |
| Noise - 0.1Hz to 10Hz | 12 µVp-p |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | 1.81 mOhm |
| Package / Case | SOT-23-5 Thin, TSOT-23-5 |
| Reference Type | Series |
| Supplier Device Package | SOT-23-THIN |
| Temperature Coefficient | 8 ppm/°C |
| Tolerance | 0.05 % |
| Voltage - Input [Max] | 5.5 V |
| Voltage - Input [Min] | 3.32 V |
| Voltage - Output (Min/Fixed) | 1.65 V, 3.3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.79 | |
| 10 | $ 4.30 | |||
| 25 | $ 4.07 | |||
| 100 | $ 3.52 | |||
| Digi-Reel® | 1 | $ 4.79 | ||
| 10 | $ 4.30 | |||
| 25 | $ 4.07 | |||
| 100 | $ 3.52 | |||
| Tape & Reel (TR) | 250 | $ 3.34 | ||
| 500 | $ 3.00 | |||
| 1250 | $ 2.53 | |||
| 2500 | $ 2.40 | |||
| Texas Instruments | SMALL T&R | 1 | $ 3.61 | |
| 100 | $ 3.17 | |||
| 250 | $ 2.22 | |||
| 1000 | $ 1.79 | |||
Description
General part information
REF20-Q1 Series
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.
Documents
Technical documentation and resources
