Overview
Description
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
Comparison
Applications
Documentation
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Type | Title | Date |
Datasheet | PDF 1.72 MB | |
Brochure | PDF 5.41 MB 日本語 | |
Product Change Notice | PDF 184 KB | |
Manual - Development Tools | PDF 360 KB | |
Application Note | PDF 1.39 MB | |
Application Note | PDF 503 KB | |
Application Note | PDF 287 KB | |
7 items
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Design & Development
Software & Tools
Boards & Kits
Ultra-Low Noise, Precision Voltage Reference Evaluation Boards
The ISL21090xxEV1Z evaluation board is designed to measure the performance of the high-precision ISL21090 voltage references. The reference has a wide input voltage range from 3.7V to 36V and an initial accuracy of 0.02% (2.5V option). The voltage noise of less than 2µVP-P in the 0.1Hz to 10Hz...
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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