Overview
The ADR420AR-REEL7 is an ultraprecision voltage reference from Analog Devices Inc., part of the ADR42x series. This device features low noise, high accuracy, and excellent long-term stability, making it ideal for precision conversion applications. The ADR420AR-REEL7 utilizes second-generation eXtra implanted junction FET (XFET) technology, which minimizes nonlinearity of the voltage change with temperature and offers superior accuracy and thermal hysteresis compared to band gap references. It operates at lower power and lower supply headroom than buried Zener references.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VOUT) | 2.048 | V |
| Initial Accuracy | ±0.05%, ±0.15% | % |
| Temperature Coefficient | 3 ppm/°C, 10 ppm/°C | ppm/°C |
| Long-term Stability | 50 ppm/1000 hours | ppm/1000 hours |
| Load Regulation | 70 ppm/mA | ppm/mA |
| Line Regulation | 35 ppm/V | ppm/V |
| Output Voltage Hysteresis | 40 ppm typical | ppm |
| Quiescent Current | 0.5 mA maximum | mA |
| Output Current | 10 mA | mA |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 8-Lead SOIC or 8-Lead MSOP |
Key Features
- Ultraprecision voltage reference with low noise and high accuracy
- XFET technology for superior accuracy and thermal hysteresis
- Patented temperature drift curvature correction technique
- Low temperature coefficient: 3 ppm/°C
- Excellent long-term stability: 50 ppm/1000 hours
- Adjustable output voltage over a ±0.5% range via trim terminal
- Low power consumption and lower supply headroom
- Available in 8-lead SOIC and 8-lead MSOP packages
Applications
- Precision data acquisition systems
- High resolution converters
- Battery-powered instrumentation
- Portable medical instruments
- Industrial process control systems
- Precision instruments
- Optical network control circuits
Q & A
- What is the output voltage of the ADR420AR-REEL7?
The output voltage of the ADR420AR-REEL7 is 2.048 V.
- What is the temperature coefficient of the ADR420AR-REEL7?
The temperature coefficient is 3 ppm/°C and 10 ppm/°C for different grades.
- What is the long-term stability of the ADR420AR-REEL7?
The long-term stability is 50 ppm/1000 hours.
- What are the package options for the ADR420AR-REEL7?
The device is available in 8-lead SOIC and 8-lead MSOP packages.
- What is the operating temperature range of the ADR420AR-REEL7?
The operating temperature range is −40°C to +125°C.
- Can the output voltage of the ADR420AR-REEL7 be adjusted?
- What are some typical applications of the ADR420AR-REEL7?
Typical applications include precision data acquisition systems, high resolution converters, battery-powered instrumentation, and optical network control circuits.
- What is the quiescent current of the ADR420AR-REEL7?
The quiescent current is 0.5 mA maximum.
- What is the maximum output current of the ADR420AR-REEL7?
The maximum output current is 10 mA.
- What technology does the ADR420AR-REEL7 use for its voltage reference?
The ADR420AR-REEL7 uses XFET (eXtra implanted junction FET) technology.
