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ADR291 - Low Noise Micropower Precision Voltage References

Download the ADR291 datasheet PDF. This datasheet also covers the ADR variant, as both devices belong to the same low noise micropower precision voltage references family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (ADR-290.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number ADR291
Manufacturer Analog Devices
File Size 166.63 KB
Description Low Noise Micropower Precision Voltage References
Datasheet download datasheet ADR291 Datasheet

General Description

Low Noise Micropower Precision Voltage References ADR290/ADR291/ADR292 PIN CONFIGURATIONS 8-Lead Narrow Body SO (R Suffix) 1 VIN 2 8 7 TOP VIEW (Not to Scale) 6 VOUT 3 5 ADR29x GND 4 8-Lead TSSOP (RU Suffix) 1 VIN 2 8 7 TOP VIEW 3 (Not to Scale) 6 VOUT 5 ADR29x GND 4 The ADR290, ADR291 and ADR292 are low noise, micropower precision voltage references that use an XFET™ reference circuit.

The new XFET architecture offers significant performance improvements over traditional bandgap and Zener-based references.

Improvements include: one quarter the voltage noise output of bandgap references operating at the same current, very low and ultralinear temperature drift, low thermal hysteresis and excellent long-term stability.

Overview

a.

Key Features

  • Voltage Options 2.048 V, 2.500 V and 4.096 V 2.7 V to 15 V Supply Range Supply Current 12 ␮ A max Initial Accuracy ؎2 mV max Temperature Coefficient 8 ppm/؇C max Low-Noise 6 ␮ V p-p (0.1 Hz.
  • 10 Hz) High Output Current 5 mA min Temperature Range ؊ 40؇C to ؉125؇C REF02/REF19x Pinout.

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