ISL21080CIH350: 300nA NanoPower Voltage References

The ISL21080 analog voltage references feature low supply voltage operation at ultra-low 310nA typ, 1.5µA max operating current. Additionally, the ISL21080 family features guaranteed initial accuracy as low as ±0.2% and 50ppm/°C temperature coefficient.

These references are ideal for general purpose portable applications to extend battery life at lower cost. The ISL21080 is provided in the industry standard 3 Ld SOT-23 pinout.

The ISL21080 output voltages can be used as precision voltage sources for voltage monitors, control loops, standby voltages for low power states for DSP, FPGA, Datapath Controllers, microcontrollers and other core voltages: 0.9V, 1.024V, 1.25V, 1.5V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V and 5.0V.

Special Note: Post-assembly x-ray inspection may lead to permanent changes in device output voltage and should be minimized or avoided. For further information, please see “Applications Information” on page 14 and AN1533 “X-Ray Effects on Intersil FGA References”.

Key Features
  • Reference output voltage: 0.900V, 1.024V, 1.250V, 1.500V, 2.048V, 2.500V, 3.000V, 3.300V, 4.096V, 5.000V
  • Initial accuracy:
    • ISL21080-09 and -10: ±0.7%
    • ISL21080-12: ±0.6%
    • ISL21080-15: ±0.5%
    • ISL21080-20 and -25: ±0.3%
    • ISL21080-30, -33, -41, and -50: ±0.2%
  • Input voltage range:
    • ISL21080-09: 2.0V to 5.5V
    • ISL21080-10, -12, -15, -20 and -25: 2.7V to 5.5V
    • ISL21080-30: 3.2V to 5.5V
    • ISL21080-33: 3.5V to 5.5V
    • ISL21080-41: 4.5V to 8.0V
    • ISL21080-50: 5.5V to 8.0V
  • Output voltage noise: 30µVP-P (0.1Hz to 10Hz)
  • Supply current: 1.5µA (max)
  • Tempco: 50ppm/°C
  • Output current capability: ±7mA
  • Operating temperature range: -40°C to +85°C
  • Package: 3 Ld SOT-23
  • Pb-Free (RoHS compliant)
Applications
  • Energy harvesting applications
  • Wireless sensor network applications
  • Low power voltage sources for controllers, FPGA, ASICs or logic devices
  • Battery management/monitoring
  • Low power standby voltages
  • Portable Instrumentation
  • Consumer/medical electronics
  • Wearable electronics
  • Lower cost industrial and instrumentation
  • Power regulation circuits
  • Control loops and compensation networks
  • LED/diode supply
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN9705: A Theoretical View of Coherent SamplingPDF13 Nov 201425 KB
AN9675: Coherent and Windowed Sampling with A/D ConvertersPDF13 Nov 2014160 KB
AN177: Voltage Reference Application and Design NotePDF13 Nov 2014517 KB
AN1533: X-Ray Effects on Intersil FGAReferencesPDF13 Nov 2014166 KB
AN1494: Reflow and PC Board Assembly Effects on Intersil FGAReferencesPDF13 Nov 201470 KB
AN002: Principles of Data Acquisition and ConversionPDF13 Nov 2014257 KB
Datasheets
TitleTypeUpdatedSizeOther Languages
ISL21080 DatasheetPDF13 Mar 20171.78 MB
Design Files
TitleTypeUpdatedSizeOther Languages
ISL21080xxEV1Z Design FilesZIP02 Sep 2016138 KB
User Guides
TitleTypeUpdatedSizeOther Languages
ISL21080XXEV1Z User GuidePDF15 Aug 2016156 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
ISL21080CIH350Z-TK3 Ld SOT T+R0.008131260RoHS
ISL21080-EVALZN/ARoHS
ISL2108050EV1ZN/ARoHS
ISL21080 Datasheet 13 Mar 2017
AN9705: A Theoretical View of Coherent Sampling 13 Nov 2014
AN9675: Coherent and Windowed Sampling with A/D Converters 13 Nov 2014
AN177: Voltage Reference Application and Design Note 13 Nov 2014
AN1533: X-Ray Effects on Intersil FGAReferences 13 Nov 2014
AN1494: Reflow and PC Board Assembly Effects on Intersil FGAReferences 13 Nov 2014
AN002: Principles of Data Acquisition and Conversion 13 Nov 2014
ISL21080xxEV1Z Design Files 02 Sep 2016
ISL21080XXEV1Z User Guide 15 Aug 2016