The ISL21090 is an ultra-low noise, high DC accuracy precision voltage reference with a wide input voltage range. The ISL21090 uses Renesas' Advanced Bipolar technology to achieve sub 1.0µVP-P (1.25V option) 0.1Hz to 10Hz noise with an initial voltage accuracy of 0.02% (2.5V option). The ISL21090 offers 1.25V, 2.5V, 5.0V, and 7.5V output voltage options with a 7ppm/°C temperature coefficient and also provides excellent line and load regulation. These devices are offered in an 8 Ld SOIC package. The ISL21090 is ideal for high-end instrumentation, data acquisition and processing applications requiring high DC precision where low noise performance is critical.

Features

  • Reference output voltage option
  • 1.25V, 2.5V, 5.0V, and 7.5V
  • Initial accuracy:
    • ISL21090-12: ±0.03%
    • ISL21090-25: ±0.02%
    • ISL21090-50: ±0.025%
    • ISL21090-75: ±0.035%
  • Output voltage noise (0.1Hz to 10Hz): 1.0µVP-P typ (1.25V option)
  • Supply current : 750µA (1.25V option)
  • Temperature coefficient: 7ppm/°C max
  • Output current capability: 20mA
  • Line regulation: 6ppm/V (1.25V option)
  • Load regulation: 2.5ppm/mA (1.25V option)
  • Operating temperature range: -40 °C to +125 °C

Applications

  • High-end instrumentation
  • Precision voltage sources for data acquisition system,
  • industrial control, communication infrastructure
  • Process control and instrumentations
  • Active source for sensors

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICN Reel 1000
Availability

Documentation

Title language Type Format File Size Date
Datasheets & Errata
ISL21090 Datasheet Datasheet PDF 1.72 MB
User Guides & Manuals
ISL21090xxEV1Z User Guide Manual PDF 360 KB
Application Notes & White Papers
AN177: Voltage Reference Application and Design Note Application Note PDF 1.39 MB
AN9675: A Tutorial in Coherent and Windowed Sampling with A/D Converters Application Note PDF 503 KB
AN9705: A Theoretical View of Coherent Sampling Application Note PDF 287 KB
PCNs & PDNs
PCN13021 - Data Sheet Specification Change for Intersil Product ISL21090BFB812Z-TK Product Change Notice PDF 184 KB
Other
Analog ICs Brochure 日本語 Brochure PDF 4.20 MB

Downloads

Title language Type Format File Size Date
Other
ISL21090xxEV1ZBOM Design Files Design File ZIP 140 KB

Boards & Kits

Part Number Title Type Company
ISL21090xxEV1Z Ultra-Low Noise, Precision Voltage Reference Evaluation Boards Evaluation Renesas