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 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 and Benefits
  • +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
Linear Products
Data Sheets
Documentnote
REF43: +2.5 V Low Power Precision Voltage Reference Data Sheet (Rev. D)PDF 955 kB
REF43: Military Data Sheet
Application Notes
Documentnote
AN-713: The Effect of Long-Term Drift on Voltage References (Rev. 0)PDF 237 kB
Frequently Asked Questions
Documentnote
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
REF43FZ Production8 ld CerDIPOTH 48-40 to 85C12.5510.66N
REF43GPZ Production8 ld PDIPOTH 50-40 to 85C4.974.22Y
REF43GSZ Production8 ld SOICOTH 98-40 to 85C4.523.84Y
REF43GSZ-REEL Production8 ld SOICREEL 2500-40 to 85C03.84Y
REF43GSZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C03.84Y
REF43NBC ProductionCHIPS OR DIEREEL 22125C00Y
REF43: +2.5 V Low Power Precision Voltage Reference Data Sheet (Rev. D) ref43
REF43: Military Data Sheet ref43
AN-713: The Effect of Long-Term Drift on Voltage References (Rev. 0) ad580