Overview
The ADR431BRMZ is a high-performance voltage reference IC from Analog Devices Inc., part of the ADR430/ADR431/ADR433/ADR434/ADR435 series. This device is known for its ultralow noise, high accuracy, and low temperature drift, making it suitable for a wide range of precision applications. The ADR431BRMZ operates with an output voltage of 2.5V and is available in an 8-lead MSOP package. It is designed to meet the stringent requirements of industrial and aerospace applications, including those that adhere to the AQEC standard.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | VOUT | 2.497 | 2.500 | 2.503 | V |
| Initial Accuracy (B Grade) | VOERR | ±1 mV | |||
| Temperature Coefficient (B Grade) | TCVOUT | 3 ppm/°C | |||
| Line Regulation | ∆VOUT/∆VIN | 20 ppm/V | |||
| Load Regulation | ∆VOUT/∆IL | ||||
| Max Input Voltage | VIN | 18 V | |||
| Max Output Current | IOUT | 30 mA | |||
| Operating Temperature Range | TA | -40°C | 125°C |
Key Features
- Low Noise: The ADR431BRMZ features ultralow noise, with 3.5 µV p-p at 2.5 V output in the 0.1 Hz to 10.0 Hz frequency range.
- High Accuracy: The device offers high accuracy with initial accuracy of ±1 mV for the B grade.
- Low Temperature Drift: It has a low temperature coefficient of 3 ppm/°C for the B grade, ensuring stable performance over a wide temperature range.
- Current Sink and Source Capability: The ADR431BRMZ can source up to 30 mA and sink up to -20 mA of output current.
- Trim Terminal: The device includes a trim terminal to adjust the output voltage over a ±0.5% range without compromising performance.
- Package Options: Available in 8-lead MSOP and 8-lead narrow SOIC packages.
Applications
The ADR431BRMZ is suitable for various precision applications, including but not limited to:
- Industrial Automation: High-accuracy voltage references are crucial in industrial automation systems for precise control and measurement.
- Aerospace and Defense: The ADR431BRMZ supports defense and aerospace applications, adhering to the AQEC standard, ensuring reliability and performance in demanding environments.
- Medical Devices: Precision medical equipment often requires stable and accurate voltage references.
- Test and Measurement Equipment: High-accuracy voltage references are essential in test and measurement instruments for reliable and precise readings.
Q & A
- What is the output voltage of the ADR431BRMZ?
The output voltage of the ADR431BRMZ is 2.5V. - What is the maximum input voltage for the ADR431BRMZ?
The maximum input voltage for the ADR431BRMZ is 18 V. - What is the operating temperature range of the ADR431BRMZ?
The operating temperature range is from -40°C to 125°C. - How much output current can the ADR431BRMZ source?
The ADR431BRMZ can source up to 30 mA of output current. - What is the temperature coefficient of the ADR431BRMZ?
The temperature coefficient for the B grade is 3 ppm/°C. - Does the ADR431BRMZ require an external capacitor?
No, the ADR431BRMZ does not require an external capacitor. - In what packages is the ADR431BRMZ available?
The ADR431BRMZ is available in 8-lead MSOP and 8-lead narrow SOIC packages. - Can the ADR431BRMZ be used in aerospace applications?
Yes, the ADR431BRMZ supports defense and aerospace applications, adhering to the AQEC standard. - What is the noise performance of the ADR431BRMZ?
The ADR431BRMZ features ultralow noise, with 3.5 µV p-p at 2.5 V output in the 0.1 Hz to 10.0 Hz frequency range. - How can the output voltage of the ADR431BRMZ be adjusted?
The output voltage can be adjusted over a ±0.5% range using the trim terminal without compromising performance.
