Overview
The ADR430ARZ, produced by Analog Devices Inc., is part of the ADR430/ADR431/ADR433/ADR434/ADR435 series of XFET® voltage references. These devices are renowned for their ultralow noise, high accuracy, and low temperature drift performance. The ADR430ARZ specifically offers a 2.048V output voltage and is designed to operate with low current consumption and minimal supply voltage headroom, making it an ideal choice for various precision applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VO | A Grade: VIN = 4.1 V to 18 V, IL = 0 mA, TA = 25°C | 2.045 | 2.048 | 2.051 | V |
| B Grade: VIN = 4.1 V to 18 V, IL = 0 mA, TA = 25°C | 2.047 | 2.048 | 2.049 | V | ||
| Initial Accuracy | VOERR | A Grade | ±3 mV | ±0.15 % | ||
| B Grade | ±1 mV | ±0.05 % | ||||
| Temperature Coefficient | TCVO | A Grade: −40°C < TA < +125°C | 10 ppm/°C | |||
| B Grade: −40°C < TA < +125°C | 3 ppm/°C | |||||
| Line Regulation | ∆VO/∆VIN | VIN = 4.1 V to 18 V | 20 ppm/V | |||
| Load Regulation | IL = 0 mA to 30 mA | 15 ppm/mA | ||||
| Output Current Capability | +30 mA, −20 mA | |||||
| Operating Temperature Range | TA | −40°C | +125°C |
Key Features
- Low Noise: Ultralow noise performance with 3.5 µV p-p at 2.5 V output in the 0.1 Hz to 10.0 Hz frequency range.
- No External Capacitor Required: The device does not need an external capacitor for operation.
- Low Temperature Coefficient: A grade: 10 ppm/°C maximum, B grade: 3 ppm/°C maximum.
- High Output Current Capability: Can source up to 30 mA and sink up to 20 mA of output current.
- Wide Operating Range: Operates over a supply voltage range of 4.1 V to 18 V.
- Trim Capability: The output voltage can be adjusted over a 0.5% range using the trim terminal.
- Compact Packaging: Available in 8-lead MSOP and 8-lead narrow SOIC packages.
Applications
- Precision Data Acquisition Systems: Ideal for high-precision data acquisition due to its low noise and high accuracy.
- High Resolution Data Converters: Used in high-resolution data converters for precise voltage referencing.
- Medical Instruments: Suitable for medical devices requiring stable and accurate voltage references.
- Industrial Process Control Systems: Used in industrial control systems for precise voltage regulation.
- Optical Control Circuits: Employed in optical control circuits for stable voltage referencing.
- Precision Instruments: Used in various precision instruments requiring high accuracy and low noise voltage references.
Q & A
- What is the output voltage of the ADR430ARZ?
The output voltage of the ADR430ARZ is 2.048 V. - What is the temperature coefficient of the ADR430ARZ?
The temperature coefficient is 10 ppm/°C for A grade and 3 ppm/°C for B grade. - Does the ADR430ARZ require an external capacitor?
No, the ADR430ARZ does not require an external capacitor for operation. - What is the maximum output current capability of the ADR430ARZ?
The device can source up to 30 mA and sink up to 20 mA of output current. - What is the operating temperature range of the ADR430ARZ?
The operating temperature range is −40°C to +125°C. - What are the common applications of the ADR430ARZ?
Common applications include precision data acquisition systems, high resolution data converters, medical instruments, industrial process control systems, optical control circuits, and precision instruments. - What packaging options are available for the ADR430ARZ?
The device is available in 8-lead MSOP and 8-lead narrow SOIC packages. - Can the output voltage of the ADR430ARZ be adjusted?
Yes, the output voltage can be adjusted over a 0.5% range using the trim terminal. - What is the line regulation of the ADR430ARZ?
The line regulation is 20 ppm/V. - What is the load regulation of the ADR430ARZ?
The load regulation is 15 ppm/mA.
