The ISL21090 is a ultra low noise, high DC accuracy precision voltage reference with wide input voltage range. The ISL21090 uses the new Intersil 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 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

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

Documentation & Downloads

Title Other Languages 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
Downloads
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