Overview
The ADR435ARZ, produced by Analog Devices Inc., is part of the ADR430/ADR431/ADR433/ADR434/ADR435 series of XFET voltage references. These devices are renowned for their low noise, high accuracy, and minimal temperature drift performance. Utilizing Analog Devices' patented temperature drift curvature correction and extra implanted junction FET (XFET) technology, the ADR435ARZ minimizes voltage change vs. temperature nonlinearity. This makes it an ideal solution for applications requiring precise voltage references, particularly in 5 V systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 5.000 | V |
| Accuracy (Grade A) | ±6 | mV |
| Accuracy (Grade B) | ±2 | mV |
| Temperature Coefficient (Grade A) | 10 | ppm/°C |
| Temperature Coefficient (Grade B) | 3 | ppm/°C |
| Output Current Source Capability | Up to 30 | mA |
| Output Current Sink Capability | Up to -20 | mA |
| Supply Voltage Operating Range | 6.1 to 18 | V |
| Supply Voltage Headroom | 2 | V |
| Operating Temperature Range | -40°C to +125°C | |
| Package Type | 8-Lead SOIC, 8-Lead MSOP | |
| Voltage Noise Density (1 kHz) | 100 nV/√Hz | |
| Turn-On Settling Time (CL = 0 µF) | 10 µs | |
| Long-Term Stability (1000 hours) | 40 ppm |
Key Features
- Low Noise: The ADR435ARZ features low noise performance, with a voltage noise density of 100 nV/√Hz at 1 kHz and 3.5 µV p-p from 0.1 Hz to 10.0 Hz.
- High Accuracy: The device offers high accuracy with output voltage accuracy of ±6 mV for Grade A and ±2 mV for Grade B.
- Low Temperature Drift: Utilizing XFET technology, the ADR435ARZ minimizes temperature drift, with a temperature coefficient of 10 ppm/°C for Grade A and 3 ppm/°C for Grade B.
- Current Source and Sink Capability: The device can source up to 30 mA and sink up to -20 mA of output current.
- Trim Terminal: A trim terminal allows for adjusting the output voltage over a ±0.5% range without compromising performance.
- Low Supply Voltage Headroom: The ADR435ARZ operates with a lower supply voltage headroom of 2 V compared to buried Zener references.
- Extended Industrial Temperature Range: The device is specified over the extended industrial temperature range of -40°C to +125°C.
Applications
The ADR435ARZ is suitable for a variety of applications requiring precise voltage references, including:
- Industrial Automation: For precise voltage regulation in industrial control systems.
- Aerospace and Defense: The ADR435-EP version supports defense and aerospace applications, adhering to AQEC standards.
- Medical Devices: For accurate voltage references in medical equipment.
- High-Reliability Systems: In systems where low noise and high accuracy are critical, such as in data acquisition and measurement instruments.
Q & A
- What is the output voltage of the ADR435ARZ?
The output voltage of the ADR435ARZ is 5.000 V.
- What is the accuracy of the ADR435ARZ?
The accuracy is ±6 mV for Grade A and ±2 mV for Grade B.
- What is the temperature coefficient of the ADR435ARZ?
The temperature coefficient is 10 ppm/°C for Grade A and 3 ppm/°C for Grade B.
- What is the current source and sink capability of the ADR435ARZ?
The device can source up to 30 mA and sink up to -20 mA of output current.
- Does the ADR435ARZ require an external capacitor?
No, the ADR435ARZ does not require an external capacitor.
- What is the supply voltage operating range of the ADR435ARZ?
The supply voltage operating range is from 6.1 V to 18 V.
- What is the supply voltage headroom required for the ADR435ARZ?
The supply voltage headroom required is 2 V.
- What are the available package types for the ADR435ARZ?
The device is available in 8-Lead SOIC and 8-Lead MSOP packages.
- What is the operating temperature range of the ADR435ARZ?
The operating temperature range is from -40°C to +125°C.
- Is the ADR435ARZ suitable for aerospace and defense applications?
Yes, the ADR435-EP version supports defense and aerospace applications, adhering to AQEC standards.
