Overview
The ADR444ARZ-REEL7, produced by Analog Devices Inc., is a member of the ADR440/ADR441/ADR443/ADR444/ADR445 series of XFET® voltage references. These devices are renowned 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, these voltage references offer superior performance in various precision applications.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | A Grade | 4.091 | 4.096 | 4.101 | V |
| B Grade | 4.094 | 4.096 | 4.098 | V | ||
| Initial Accuracy | VOERR | A Grade | ±5 mV | mV | ||
| B Grade | ±1.6 mV | mV | ||||
| Temperature Drift | TCVOUT | A Grade | 10 | ppm/°C | ||
| B Grade | 3 | 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 | |
| ILOAD = 0 mA to −5 mA, VIN = 4 V, −40°C < TA < +125°C | −50 | 50 | ppm/mA | |||
| Output Current | Source/Sink | 10 mA / −5 mA | mA | |||
| Supply Voltage Operating Range | VIN | 5.5 | 18 | V | ||
| Supply Voltage Headroom | VIN − VOUT | 500 mV | mV | |||
| Operating Temperature Range | TA | −40°C | +125°C | °C |
Key Features
- Ultralow Noise and High Accuracy: The ADR444ARZ-REEL7 features ultralow noise and high accuracy, making it suitable for precision signal conversion applications.
- Low Temperature Drift: Utilizing patented temperature drift curvature correction and XFET technology, this device minimizes voltage change vs. temperature nonlinearity.
- Adjustable Output Voltage: A trim terminal allows for adjusting the output voltage over a 0.5% range without compromising performance.
- High Output Current Capability: The device can source up to 10 mA and sink up to −5 mA of output current.
- Low Supply Voltage Headroom: Operates with a supply voltage headroom of 500 mV.
- Extended Industrial Temperature Range: Specified over the temperature range of −40°C to +125°C.
- Package Options: Available in 8-lead MSOP and narrow SOIC packages.
Applications
The ADR444ARZ-REEL7 is ideally suited for precision signal conversion applications in various fields, including:
- High-End Data Acquisition Systems: Where high accuracy and low noise are critical.
- Optical Networks: For precise voltage referencing in optical communication systems.
- Medical Applications: In medical devices requiring high precision and reliability.
Q & A
- What is the output voltage of the ADR444ARZ-REEL7?
The output voltage of the ADR444ARZ-REEL7 is 4.096V with an initial accuracy of ±5 mV for the A grade and ±1.6 mV for the B grade. - What is the temperature drift of the ADR444ARZ-REEL7?
The temperature drift is 10 ppm/°C for the A grade and 3 ppm/°C for the B grade over the temperature range of −40°C to +125°C. - What is the maximum output current that the ADR444ARZ-REEL7 can source and sink?
The device can source up to 10 mA and sink up to −5 mA of output current. - What are the package options for the ADR444ARZ-REEL7?
The device is available in 8-lead MSOP and narrow SOIC packages. - What is the operating temperature range of the ADR444ARZ-REEL7?
The operating temperature range is −40°C to +125°C. - Can the output voltage of the ADR444ARZ-REEL7 be adjusted?
Yes, the output voltage can be adjusted over a 0.5% range using a trim terminal without compromising performance. - What are some typical applications of the ADR444ARZ-REEL7?
Typical applications include high-end data acquisition systems, optical networks, and medical applications. - What is the supply voltage operating range of the ADR444ARZ-REEL7?
The supply voltage operating range is from 5.5V to 18V. - What is the supply voltage headroom required for the ADR444ARZ-REEL7?
The device operates with a supply voltage headroom of 500 mV. - How does the ADR444ARZ-REEL7 minimize temperature drift?
The device uses patented temperature drift curvature correction and XFET technology to minimize temperature drift.
