Features
- Reference output voltage: 2.5V ± 0.05%
- Accuracy over temperature: ± 0.15%
- Output voltage noise: 2µVP-P typical (0.1Hz to 10Hz)
- Voltage accuracy over radiation: ± 0.175%
- Supply current: 930µA (typical)
- Temperature coefficient (box method): 10ppm/°C Max
- Output current capability: 20mA
- Line regulation: 8ppm/V
- Load regulation: 2.5ppm/mA
- Operating temperature range: -55°C to +125°C
- Radiation environment
- High dose rate (50-300rad(Si)/s): 100krad(Si)
- Low dose rate (0.01rad(Si)/s): 100krad(Si)
- Product capability established by initial characterization. The "EH" version is acceptance tested on a wafer-by-wafer basis to 50krad(Si) at low dose rate
- SET/SEL/SEB: 86MeV•cm2/mg
- Electrically screened to SMD 5962-13211
Description
The ISL71090SEH25 is a radiation hardened, ultra-low noise, high DC accuracy precision voltage reference with a wide input voltage range from 4V to 30V. The ISL71090SEH25 uses Renesas' advanced bipolar technology to achieve 2µVP-P noise at 0.1Hz with an accuracy over temperature of 0.15%. The ISL71090SEH25 offers a 2.5V output voltage with 10ppm/°C temperature coefficient and also provides excellent line and load regulation. The device is offered in an 8 Ld flatpack package. The ISL71090SEH25 is ideal for high-end instrumentation, data acquisition, and applications requiring high DC precision where low noise performance is critical.
Parameters
| Attributes | Value |
|---|---|
| Rating | Space |
| Line Regulation (ppm/V) | 8 |
| Reference Output Voltage (V) | 2.5 |
| Supply Voltage (min) (V) | 4 - 4 |
| Supply Voltage (max) (V) | 30 - 30 |
| Temp. Range (°C) | -40 to +125°C, -55 to +125°C |
| TID HDR (krad(Si)) | 100 |
| TID LDR (krad(Si)) | 50, 100 |
| DSEE (MeV·cm2/mg) | 86 |
| Flow | RH Hermetic |
| Qualification Level | Class V, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
Applications
- RH voltage regulators precision outputs
- Precision voltage sources for data acquisitions system for space applications
- Strain and pressure gauges for space applications
Renesas Boards & Kits
2.5V Radiation Hardened Ultra-Low Noise, Precision Voltage Reference Evaluation Board
The ISL71090SEH25EV1Z evaluation board is designed to measure the performance of the radiation hardened, ultra-low noise, high-precision ISL71090SEH25 voltage reference. The reference has a wide input voltage range from 4V to 30V and an initial accuracy of 0.05%. Its ultra-low voltage noise... Read More
Knowledge Base
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ISL71090SEH Trim Pin
The part is factory trimmed and the trim pin can be left unconnected for most applications. The part adjust factory-calibrated output value can be adjusted using the trim pin as discussed in the data sheet in the section titled “Output Voltage Adjustment”.
Mar 20, 2024 -
Is it possible to use the ISL71090SEH without a compensation capacitor?
It is possible to use these voltage references without a compensation capacitor if the output capacitance is under 100pF for ISL71090SEH12. For ISL71090SEH25, ISL71090SEH50 and ISL71090SEH75 the output capacitance must be either under 100pF or between 50nF to 100nF. However, a compensation capacitor is highly recommended to mitigate SEE effects ...
Jul 10, 2025
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