Overview
The ADR441BRZ-REEL7, produced by Analog Devices Inc., is a precision voltage reference component belonging to the ADR440/ADR441/ADR443/ADR444/ADR445 series. This family of XFET® voltage references is distinguished by its ultralow noise, high accuracy, and low temperature drift performance. The ADR441BRZ-REEL7 is specifically a 2.5V voltage reference with a current sink and source capability, making it ideal for various precision signal conversion 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 | ppm/°C | |
| Temperature Drift | TCVOUT | B Grade, −40°C < TA < +125°C | 1 | 3 ppm/°C | ppm/°C | |
| Line Regulation | ΔVOUT/ΔVIN | −40°C < TA < +125°C | 10 | 20 ppm/V | ppm/V | |
| Load Regulation | ΔVOUT/ΔILOAD | ILOAD = 0 mA to 10 mA, VIN = 4 V, −40°C < TA < +125°C | −50 | 50 ppm/mA | ppm/mA | |
| Supply Voltage Operating Range | VIN | 5.5 | 18 | V | ||
| Supply Voltage Headroom | VIN − VOUT | 500 mV | mV | |||
| Output Current Capability | Source/Sink | 10 mA / −5 mA | mA | |||
| Package | 8-Lead SOIC |
Key Features
- Ultralow Noise: The ADR441BRZ-REEL7 features ultralow noise, making it suitable for high-precision applications.
- High Accuracy: It offers high accuracy with initial accuracy as low as ±1 mV for the B grade.
- Low Temperature Drift: The component has low temperature drift, with a maximum of 3 ppm/°C for the B grade over the temperature range of −40°C to +125°C.
- Low Supply Voltage Headroom: It operates with a low supply voltage headroom of 500 mV.
- Current Sink and Source Capability: The device can source up to 10 mA and sink up to −5 mA of output current.
- Trim Terminal: A trim terminal is available to adjust the output voltage over a 0.5% range without compromising performance.
- Package Options: Available in 8-lead MSOP and narrow SOIC packages.
- RoHS Compliance: The component is RoHS compliant, ensuring environmental sustainability.
Applications
The ADR441BRZ-REEL7 is ideally suited for various precision signal conversion applications, including:
- High-End Data Acquisition Systems: Due to its high accuracy and low noise, it is perfect for precision data acquisition.
- Optical Networks: Its low temperature drift and high stability make it suitable for optical network applications.
- Medical Applications: The component's precision and stability are critical in medical devices where accuracy is paramount.
- Defense and Aerospace: The ADR441-EP version supports defense and aerospace applications, adhering to AQEC standards.
Q & A
- What is the output voltage of the ADR441BRZ-REEL7?
The output voltage of the ADR441BRZ-REEL7 is 2.5V.
- What are the initial accuracy specifications for the ADR441BRZ-REEL7?
The initial accuracy is ±3 mV for the A grade and ±1 mV for the B grade.
- What is the temperature drift specification for the ADR441BRZ-REEL7?
The temperature drift is 2 ppm/°C to 10 ppm/°C for the A grade and 1 ppm/°C to 3 ppm/°C for the B grade over the temperature range of −40°C to +125°C.
- What is the supply voltage operating range for the ADR441BRZ-REEL7?
The supply voltage operating range is from 5.5V to 18V.
- What is the supply voltage headroom required for the ADR441BRZ-REEL7?
The supply voltage headroom is 500 mV.
- Can the ADR441BRZ-REEL7 source and sink current?
Yes, it can source up to 10 mA and sink up to −5 mA of output current.
- In what packages is the ADR441BRZ-REEL7 available?
The component is available in 8-lead MSOP and narrow SOIC packages.
- Is the ADR441BRZ-REEL7 RoHS compliant?
Yes, the component is RoHS compliant.
- What are some typical applications of the ADR441BRZ-REEL7?
Typical applications include high-end data acquisition systems, optical networks, medical applications, and defense and aerospace applications.
- How does the ADR441BRZ-REEL7 achieve low temperature drift?
The component uses Analog Devices' patented temperature drift curvature correction and XFET technology to minimize temperature drift nonlinearity.
