Overview
The ADR440ARMZ, produced by Analog Devices Inc., is a part of the ADR440/ADR441/ADR443/ADR444/ADR445 series of XFET voltage references. These devices are known for their ultralow noise, high accuracy, and low temperature drift performance. Utilizing Analog Devices' patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, the ADR440ARMZ minimizes voltage change vs. temperature nonlinearity. This makes it ideal for precision signal conversion applications in high-end data acquisition systems, optical networks, and medical devices.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage (Vout) | 2.048V |
| Initial Accuracy (max) | 0.05% |
| Operating Temperature Range | -40°C to +125°C |
| Output Current (Is Pos max) | 3.75mA |
| Line Regulation (max) | 20 ppm/V |
| Load Regulation (typ) | 50 ppm/mA |
| Voltage Noise (typ) | 1µV p-p |
| Output Voltage Temperature Coefficient (max) | 3 ppm/°C |
| Package | 8-lead MSOP |
| RoHS Compliance | Compliant |
Key Features
- Ultralow Noise: The ADR440ARMZ features ultralow noise performance, making it suitable for high-precision applications.
- High Accuracy: It offers high accuracy with an initial accuracy of up to 0.05%.
- Low Temperature Drift: The device minimizes voltage change vs. temperature nonlinearity using patented temperature drift curvature correction and XFET technology.
- Current Sink and Source Capability: It can source up to 10 mA and sink up to -5 mA of output current.
- Adjustable Output Voltage: The trim terminal allows for adjusting the output voltage over a 0.5% range without compromising performance.
- Low Power Consumption: Designed for low power consumption, ensuring minimal system power requirements.
- Integrated Reverse Current Protection and Current Limit Protection: Ensures the device is robust and protected against over-current conditions.
Applications
The ADR440ARMZ is ideally suited for various high-precision applications, including:
- High-End Data Acquisition Systems: Where precise voltage references are crucial for accurate data conversion.
- Optical Networks: For stable and accurate voltage references in optical communication systems.
- Medical Applications: In medical devices that require high precision and reliability.
Q & A
- What is the output voltage of the ADR440ARMZ?
The output voltage of the ADR440ARMZ is 2.048V.
- What is the initial accuracy of the ADR440ARMZ?
The initial accuracy is up to 0.05%.
- What is the operating temperature range of the ADR440ARMZ?
The operating temperature range is -40°C to +125°C.
- Can the ADR440ARMZ source and sink current?
Yes, it can source up to 10 mA and sink up to -5 mA of output current.
- Is the ADR440ARMZ RoHS compliant?
Yes, the ADR440ARMZ is RoHS compliant.
- What package types are available for the ADR440ARMZ?
The device is available in 8-lead MSOP and narrow SOIC packages.
- What are some typical applications of the ADR440ARMZ?
Typical applications include high-end data acquisition systems, optical networks, and medical devices.
- Does the ADR440ARMZ have any built-in protection features?
Yes, it includes integrated reverse current protection and current limit protection.
- Can the output voltage of the ADR440ARMZ be adjusted?
Yes, the output voltage can be adjusted over a 0.5% range using the trim terminal.
- What is the voltage noise performance of the ADR440ARMZ?
The voltage noise performance is typically 1µV p-p.
