Overview
The ADR420ARZ is an ultraprecision, low noise voltage reference from Analog Devices Inc., part of the ADR42x series. This device utilizes second-generation eXtra implanted junction FET (XFET) technology, offering high accuracy and excellent long-term stability. The ADR420ARZ is specifically designed to provide a stable 2.048V output voltage, making it ideal for precision conversion applications such as optical networks, medical equipment, and industrial process control systems. It is available in both 8-lead SOIC and 8-lead MSOP packages, ensuring versatility in design and implementation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VOUT) | 2.048 | V |
| Initial Accuracy | ±0.05%, ±0.15% | % |
| Temperature Coefficient | 3 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 |
| Quiescent Current | 0.5 mA (max) | mA |
| Output Current | 10 mA (max) | mA |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 8-lead SOIC, 8-lead MSOP |
Key Features
- Low noise: 1.75 μV p-p (0.1 Hz to 10 Hz)
- High accuracy and low temperature coefficient: 3 ppm/°C
- Excellent long-term stability: 50 ppm/1000 hours
- Low hysteresis: 40 ppm typical
- Wide operating range: 4 V to 18 V
- Adjustable output voltage via trim terminal: ±0.5% range
- XFET technology for superior accuracy and thermal hysteresis compared to band gap references
- Low power consumption and lower supply headroom compared to buried Zener references
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 ADR420ARZ?
The output voltage of the ADR420ARZ is 2.048V.
- What is the temperature coefficient of the ADR420ARZ?
The temperature coefficient of the ADR420ARZ is 3 ppm/°C.
- What is the long-term stability of the ADR420ARZ?
The long-term stability of the ADR420ARZ is 50 ppm/1000 hours.
- What are the package options for the ADR420ARZ?
The ADR420ARZ is available in 8-lead SOIC and 8-lead MSOP packages.
- Can the output voltage of the ADR420ARZ be adjusted?
- What is the operating temperature range of the ADR420ARZ?
The operating temperature range is −40°C to +125°C.
- What are some typical applications of the ADR420ARZ?
Typical applications include precision data acquisition systems, high resolution converters, battery-powered instrumentation, and optical network control circuits.
- What technology does the ADR420ARZ use for its voltage reference?
The ADR420ARZ uses second-generation eXtra implanted junction FET (XFET) technology.
- How does the XFET technology benefit the ADR420ARZ?
The XFET technology provides superior accuracy and thermal hysteresis compared to band gap references and operates at lower power and lower supply headroom than buried Zener references.
- What is the quiescent current of the ADR420ARZ?
The quiescent current of the ADR420ARZ is 0.5 mA maximum.
