Overview
The ADR443ARMZ is a part of the ADR440/ADR441/ADR443/ADR444/ADR445 series, a family of XFET voltage references developed by Analog Devices Inc. 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, the ADR443ARMZ minimizes voltage change vs. temperature nonlinearity, making it ideal for precision signal conversion applications.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | A Grade | 2.996 | 3.000 | 3.004 | V |
| Output Voltage | VOUT | B Grade | 2.9988 | 3.000 | 3.0012 | V |
| Initial Accuracy | VOERR | A Grade | ±4 mV | 0.13 % | ||
| Initial Accuracy | VOERR | B Grade | ±1.2 mV | 0.04 % | ||
| Temperature Drift | TCVOUT | A Grade | 2 | 10 | ppm/°C | |
| Temperature Drift | TCVOUT | B Grade | 1 | 3 | ppm/°C | |
| Line Regulation | ΔVOUT/ΔVIN | 10 | 20 | ppm/V | ||
| Load Regulation | ΔVOUT/ΔILOAD | ILOAD = 0 mA to 10 mA, VIN = 5 V | −50 | 50 | ppm/mA | |
| Operating Temperature Range | TA | −40°C | +125°C | °C | ||
| Supply Voltage Operating Range | VIN | 3.5 V | 18 V | V | ||
| Supply Voltage Headroom | VIN − VOUT | 500 mV | mV | |||
| Output Current Source/Sink | IOUT | +10 mA / −5 mA | mA | |||
| Package | 8-lead MSOP or narrow SOIC |
Key Features
- Ultralow Noise: The ADR443ARMZ features ultralow voltage noise, making it suitable for high-precision applications.
- High Accuracy: Offers high accuracy with initial accuracy as low as ±1.2 mV for the B grade.
- Low Temperature Drift: Utilizes temperature drift curvature correction and XFET technology to minimize temperature drift, with a temperature coefficient as low as 3 ppm/°C for the B grade.
- Low Dropout Operation: Operates with a low supply voltage headroom of 500 mV.
- Current Source and Sink Capability: Can source up to 10 mA and sink up to −5 mA of output current.
- Trim Terminal: Includes a trim terminal to adjust the output voltage over a 0.5% range without compromising performance.
- Extended Industrial Temperature Range: Specified over the extended industrial temperature range of −40°C to +125°C.
Applications
- Precision Data Acquisition Systems: Ideal for high-end data acquisition systems requiring precise voltage references.
- Optical Networks: Suitable for applications in optical networks where low noise and high accuracy are crucial.
- Medical Applications: Used in medical devices that require high precision and reliability.
- Military Communication and Avionics: Supports defense and aerospace applications with its robust performance and controlled manufacturing baseline.
- Battery-Powered Instrumentation: Applicable in battery-powered instrumentation due to its low power consumption and high accuracy.
Q & A
- What is the output voltage of the ADR443ARMZ?
The output voltage of the ADR443ARMZ is 3.0 V, with an initial accuracy of ±1.2 mV for the B grade and ±4 mV for the A grade.
- What is the temperature drift of the ADR443ARMZ?
The temperature drift of the ADR443ARMZ is as low as 3 ppm/°C for the B grade and 10 ppm/°C for the A grade.
- What is the supply voltage operating range of the ADR443ARMZ?
The supply voltage operating range of the ADR443ARMZ is from 3.5 V to 18 V.
- What is the current source and sink capability of the ADR443ARMZ?
The ADR443ARMZ can source up to 10 mA and sink up to −5 mA of output current.
- What packages are available for the ADR443ARMZ?
The ADR443ARMZ is available in 8-lead MSOP and narrow SOIC packages.
- What is the operating temperature range of the ADR443ARMZ?
The operating temperature range of the ADR443ARMZ is from −40°C to +125°C.
- Can the output voltage of the ADR443ARMZ be adjusted?
Yes, the output voltage of the ADR443ARMZ can be adjusted over a 0.5% range using the trim terminal without compromising performance.
- What are some typical applications of the ADR443ARMZ?
Typical applications include precision data acquisition systems, optical networks, medical applications, and military communication and avionics.
- Does the ADR443ARMZ support military temperature ranges?
No, the ADR443ARMZ is specified over the extended industrial temperature range of −40°C to +125°C, but there are other models in the series that support military temperature ranges.
- Is the ADR443ARMZ RoHS compliant?
Yes, the ADR443ARMZ is available in RoHS compliant versions.
