Overview
The ADR441ARMZ-REEL7 is a part of the ADR440/ADR441/ADR443/ADR444/ADR445 series, a family of XFET® voltage references developed by Analog Devices Inc. These voltage references 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 devices minimize voltage change vs. temperature nonlinearity, making them ideal for precision applications.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | A Grade | 2.497 | 2.500 | 2.503 | V |
| Output Voltage | VOUT | B Grade | 2.499 | 2.500 | 2.501 | V |
| Initial Accuracy | VOERR | A Grade | ±3 mV | |||
| Initial Accuracy | VOERR | B Grade | ±1 mV | |||
| Temperature Drift | TCVOUT | A Grade, −40°C < TA < +125°C | 2 | 10 ppm/°C | ||
| Temperature Drift | TCVOUT | B Grade, −40°C < TA < +125°C | 1 | 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 | ||
| Supply Voltage Operating Range | VIN | 5.5 | 18 | V | ||
| Supply Voltage Headroom | VIN − VOUT | 500 mV | ||||
| Output Current Capability | Source/Sink | 10 mA / −5 mA |
Key Features
- Ultralow noise performance, better than buried Zener references.
- High accuracy and low temperature drift using XFET technology and temperature drift curvature correction.
- Low supply voltage headroom of 500 mV.
- Capability to source up to 10 mA and sink up to −5 mA of output current.
- Trim terminal to adjust the output voltage over a 0.5% range without compromising performance.
- Available in 8-lead MSOP and narrow SOIC packages.
- Specified over the extended industrial temperature range of −40°C to +125°C.
Applications
The ADR441ARMZ-REEL7 is ideally suited for precision signal conversion applications in various high-end systems, including:
- High-end data acquisition systems.
- Optical networks.
- Medical applications.
- Defense and aerospace applications (specifically the ADR441-EP model).
Q & A
- What is the output voltage of the ADR441ARMZ-REEL7?
The output voltage of the ADR441ARMZ-REEL7 is 2.5V, with initial accuracy of ±3 mV for A Grade and ±1 mV for B Grade.
- What is the temperature drift of the ADR441ARMZ-REEL7?
The temperature drift is 2 ppm/°C to 10 ppm/°C for A Grade and 1 ppm/°C to 3 ppm/°C for B Grade over the temperature range of −40°C to +125°C.
- What is the supply voltage operating range of the ADR441ARMZ-REEL7?
The supply voltage operating range is from 5.5V to 18V.
- What is the output current capability of the ADR441ARMZ-REEL7?
The device can source up to 10 mA and sink up to −5 mA of output current.
- In what packages is the ADR441ARMZ-REEL7 available?
The device is available in 8-lead MSOP and narrow SOIC packages.
- What are the typical applications of the ADR441ARMZ-REEL7?
Typical applications include high-end data acquisition systems, optical networks, and medical applications.
- How does the XFET technology improve performance?
The XFET technology minimizes voltage change vs. temperature nonlinearity and offers better noise performance than buried Zener references.
- Can the output voltage be adjusted?
Yes, the output voltage can be adjusted over a 0.5% range using the trim terminal without compromising performance.
- What is the ripple rejection ratio of the ADR441ARMZ-REEL7?
The ripple rejection ratio is −80 dB at 1 kHz.
- What is the short-circuit current to ground for the ADR441ARMZ-REEL7?
The short-circuit current to ground is 27 mA.
