REF43:  +2.5V Low Power Precision Voltage Reference

The REF43 is a low-power precision reference providing a stable +2.5V output independent of variations in supply voltage, load conditions or ambient temperature. It is suitable as a reference level ...More

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REF43:  +2.5V Low Power Precision Voltage Reference

Product Description

The REF43 is a low-power precision reference providing a stable +2.5V output independent of variations in supply voltage, load conditions or ambient temperature. It is suitable as a reference level for 8, 10 and 12-bit data acuisition systems, or wherever a stable, know voltage is required.

Tight output tolerances and low thermal drift are assured by zener-zap trimming of both outout voltage and its temperature coefficient. A unique curvature correction circuit reduces the thermal curvature which is characteristic of many previous bandgap references.

Features

  • +2.5 Volt Output: ±0.05% Max
  • Low Temperature Coefficient: 10 ppm/°C Max
  • Excellent Regulation
    Load Regulation: 20 ppm/mA Max
    Line Regulation: 2 ppm/V Max
  • Supply Current: 450µA Max
  • Temperature Voltage Output: +1.9mV/°C
  • Operating Voltage Range: +4.5V to +40V
  • Extended Industrial Temp Range: -40°C to +85°C
  • Available in Die Form

Diagrams

REF43 Diagram
Pin Out Diagram for REF43

Specifications

Vout 2.5
Initial Accuracy (%) 0.02
Ref Out TC (ppm/C) 25ppm/C
Supply Voltage Range (V) +4.5 to +40
Supply Current (max) 450µA
Ref Output Current (mA) 20mA
0.1-10 Hz Noise (µV p-p) 4µV p-p
Temp Range(s) -40 to +85
Package DIP,SOIC
Reference Type Series

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