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
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.
Parameters
| Attributes | Value |
|---|---|
| VOUT (V) | 2.5 |
| Supply Voltage Vs Range | 3.7 to 36 |
| Technology | Bipolar |
| Temperature Coefficient (ppm/°C) | 7 |
| Initial Accuracy (% Vout) (% Vout) | 0.02 |
| IS (mA) | 1.28 |
| ISINK (Max) (mA) | 10 |
| ISOURCE (Max) (mA) | 20 |
| Output Noise (Typical) | 1.9 µVPP |
| Low Frequency Noise (µVPP) | 1.9 |
| LTD Stability (ppm) | 20 |
| Initial Accuracy (mV (±)) (mV (±)) | 0.5 |
| VS (Min) (V) | 3.7 |
| VS (Max) (V) | 36 |
| Qualification Level | Standard |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| SOICN | 4.9 x 3.9 x 0.00 | 8 | 1.3 |
Application Block Diagrams
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Industrial Precision Temperature Control
This system is ideal for industrial control processes providing accurate temperature measurements with a minimal number of components.
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Additional Applications
- High-end instrumentation
- Precision voltage sources for data acquisition system,
- industrial control, communication infrastructure
- Process control and instrumentations
- Active source for sensors