Overview
The ADR420ARZ-REEL7 is a part of the ADR42x series of ultraprecision, second-generation eXtra implanted junction FET (XFET) voltage references produced by Analog Devices Inc. This device is known for its low noise, high accuracy, and excellent long-term stability, making it ideal for precision conversion applications. The ADR420ARZ-REEL7 operates within an extended industrial temperature range of −40°C to +125°C and is available in 8-lead SOIC packages.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | A Grade | 2.048 - 0.004 | 2.048 | 2.048 + 0.004 | V |
| Initial Accuracy | VOUTERR | A Grade | -4 | - | 4 | mV |
| Temperature Coefficient | TCVOUT | A Grade, -40°C < TA < +125°C | 2 | - | 10 | ppm/°C |
| Supply Voltage Headroom | VIN - VOUT | - | - | 2 | V | |
| Line Regulation | ΔVOUT/ΔVIN | VIN = 5 V to 18 V, -40°C < TA < +125°C | 10 | - | 35 | ppm/V |
| Load Regulation | ΔVOUT/ΔIL | IL = 0 mA to 10 mA, -40°C < TA < +125°C | 70 | - | - | ppm/mA |
| Quiescent Current | IIN | No load, -40°C < TA < +125°C | 390 | 500 | 600 | μA |
Key Features
- Low noise: 1.75 μV p-p (0.1 Hz to 10 Hz)
- High accuracy and excellent long-term stability
- Patented temperature drift curvature correction technique and XFET technology to minimize nonlinearity of the voltage change with temperature
- Operates at lower power and lower supply headroom compared to buried Zener references
- Adjustable output voltage over a ±0.5% range without compromising performance
- Available in 8-lead SOIC and MSOP packages
Applications
The ADR420ARZ-REEL7 is particularly suited for precision conversion applications, including:
- Optical networks
- Medical equipment
Q & A
- What is the output voltage of the ADR420ARZ-REEL7? The output voltage is 2.048 V with an initial accuracy of ±0.15%.
- What is the temperature range for the ADR420ARZ-REEL7? The device operates over an extended industrial temperature range of −40°C to +125°C.
- What are the package options for the ADR420ARZ-REEL7? It is available in 8-lead SOIC and MSOP packages.
- What is the noise performance of the ADR420ARZ-REEL7? The device has low noise of 1.75 μV p-p (0.1 Hz to 10 Hz).
- Can the output voltage be adjusted? Yes, the output voltage can be adjusted over a ±0.5% range without compromising other performance parameters.
- What are some typical applications for the ADR420ARZ-REEL7? It is used in precision conversion applications such as optical networks and medical equipment.
- What is the quiescent current of the ADR420ARZ-REEL7? The quiescent current is 390 μA to 600 μA over the temperature range.
- How does the XFET technology benefit the ADR420ARZ-REEL7? The XFET technology offers superior accuracy and thermal hysteresis compared to band gap references and operates at lower power and supply headroom than buried Zener references.
- What is the line regulation of the ADR420ARZ-REEL7? The line regulation is 10 ppm/V to 35 ppm/V over the specified input voltage range.
- What is the load regulation of the ADR420ARZ-REEL7? The load regulation is 70 ppm/mA over the specified current range.
