Voltage reference boosts accuracy

The 3-ppm/C REF50xx temperature-drift CMOS voltage reference family has an output current of ±10 mA that provides accurate voltage reference to the A/D converter without an additional op amp buffer. Features include an accuracy of 0.05% max, a voltage noise of 7.5 µVp-p for 2.5-V output, and an output supply range of 0.2 to 18 V.

The family offers six output voltages: 2.048 V (REF5020), 2.5 V (REF5025), 3.0 V (REF5030), 4.096 V (REF5040), 4.5 V (REF5045), and 5 V (REF5050). The devices feature standardized pinouts that include a TRIM pin for ±15-mV output-voltage adjust and a TEMP pin for temperature monitoring. (From $1.85 ea/1,000—available now.)

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