Overview
The ADR444ARMZ-REEL7 is a high-performance voltage reference from Analog Devices Inc., part of the ADR440/ADR441/ADR443/ADR444/ADR445 series. This device features Analog Devices' patented XFET (eXtra implanted junction FET) technology, which provides ultralow noise, high accuracy, and low temperature drift. The ADR444ARMZ-REEL7 is specifically designed for precision signal conversion applications in high-end data acquisition systems, optical networks, and medical devices.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | |||
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | A Grade | 4.091 | 4.096 | 4.101 | V |
| Initial Accuracy | VOERR | A Grade | ±5 mV | |||
| Temperature Drift | TCVOUT | A Grade, −40°C < TA < +125°C | 10 | ppm/°C | ||
| Line Regulation | ΔVOUT/ΔVIN | −40°C < TA < +125°C | 10 | 20 | ppm/V | |
| Load Regulation | ΔVOUT/ΔILOAD | ILOAD = 0 mA to 10 mA, VIN = 4 V, −40°C < TA < +125°C | −50 | 50 | ppm/mA | |
| Output Current Capacity | ILOAD | Sourcing | 10 mA | |||
| Sinking | −5 mA | |||||
| Supply Voltage Operating Range | VIN | 5.5 V | 18 V | |||
| Supply Voltage Headroom | VIN − VOUT | 500 mV | ||||
| Operating Temperature Range | TA | −40°C | +125°C | |||
| Package | 8-Lead MSOP |
Key Features
- Ultralow Noise: The ADR444ARMZ-REEL7 features ultralow noise performance, with a noise level of 1.8 μV p-p in the 0.1 Hz to 10 Hz frequency range.
- High Accuracy: It offers high initial accuracy, with a maximum deviation of ±5 mV for the A grade.
- Low Temperature Drift: The device has a low temperature drift of 10 ppm/°C for the A grade, ensuring stable performance over a wide temperature range.
- Current Source and Sink Capability: The ADR444ARMZ-REEL7 can source up to 10 mA and sink up to −5 mA of output current.
- Trim Terminal: It includes a trim terminal to adjust the output voltage over a 0.5% range without compromising performance).
- Low Supply Voltage Headroom: The device operates with a low supply voltage headroom of 500 mV, making it efficient for various applications).
- Extended Industrial Temperature Range: The device is specified over the extended industrial temperature range of −40°C to +125°C).
Applications
The ADR444ARMZ-REEL7 is ideally suited for precision signal conversion applications in:
- High-End Data Acquisition Systems: Where accurate and stable voltage references are crucial for precise data conversion).
- Optical Networks: For applications requiring low noise and high stability in optical communication systems).
- Medical Applications: In medical devices where precision and reliability are paramount).
Q & A
- What is the output voltage of the ADR444ARMZ-REEL7?
The output voltage of the ADR444ARMZ-REEL7 is 4.096 V).
- What is the initial accuracy of the ADR444ARMZ-REEL7?
The initial accuracy is ±5 mV for the A grade).
- What is the temperature drift of the ADR444ARMZ-REEL7?
The temperature drift is 10 ppm/°C for the A grade).
- What is the maximum output current that the ADR444ARMZ-REEL7 can source?
The device can source up to 10 mA of output current).
- What is the minimum supply voltage required for the ADR444ARMZ-REEL7?
The minimum supply voltage is 5.5 V).
- What is the operating temperature range of the ADR444ARMZ-REEL7?
The operating temperature range is −40°C to +125°C).
- What package options are available for the ADR444ARMZ-REEL7?
The device is available in an 8-lead MSOP package).
- Can the output voltage of the ADR444ARMZ-REEL7 be adjusted?
Yes, the output voltage can be adjusted over a 0.5% range using the trim terminal).
- What are the typical applications of the ADR444ARMZ-REEL7?
The device is typically used in high-end data acquisition systems, optical networks, and medical applications).
- Does the ADR444ARMZ-REEL7 have any special noise reduction features?
Yes, it features ultralow noise performance due to Analog Devices' XFET technology).
