Overview
The ADR433ARZ-REEL7 is a part of the ADR430/ADR431/ADR433/ADR434/ADR435 series, a family of XFET® voltage references produced by Analog Devices Inc. These voltage references are known for their low noise, high accuracy, and low temperature drift performance. Utilizing Analog Devices' patented temperature drift curvature correction and extra implanted junction FET (XFET) technology, these references minimize voltage change vs. temperature nonlinearity. The ADR433ARZ-REEL7 operates at lower current (800 µA) and lower supply voltage headroom (2 V) compared to traditional buried Zener references, making it an ideal solution for 5 V systems.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | A Grade | 2.994 | 3.000 | 3.006 | V |
| Output Voltage | VOUT | B Grade | 2.998 | 3.000 | 3.002 | V |
| Initial Accuracy | VOERR | A Grade | ±4 mV | ±0.13 % | ||
| Initial Accuracy | VOERR | B Grade | ±1.5 mV | ±0.05 % | ||
| Temperature Coefficient | TCVOUT | A Grade | 10 ppm/°C | |||
| Temperature Coefficient | TCVOUT | B Grade | 3 ppm/°C | |||
| Line Regulation | ∆VOUT/∆VIN | VIN = 5.0 V to 18 V | 20 ppm/V | |||
| Load Regulation | ∆VOUT/∆IL | IL = 0 mA to 10 mA, VIN = 5.0 V | 15 ppm/mA | |||
| Supply Voltage Operating Range | VIN | 5.0 V | 18 V | |||
| Output Current Source/Sink Capability | +30 mA / -20 mA | |||||
| Operating Temperature Range | TA | -40°C | +125°C |
Key Features
- Low Noise: The ADR433ARZ-REEL7 features low noise performance, typically less than 3.75 µV p-p over the 0.1 Hz to 10.0 Hz band.
- High Accuracy: High initial accuracy with options for A and B grades, ensuring precise voltage output.
- Low Temperature Drift: Utilizes temperature drift curvature correction and XFET technology to minimize temperature-related voltage changes, with coefficients as low as 3 ppm/°C for B grade.
- Current Source and Sink Capability: Capable of sourcing up to 30 mA and sinking up to -20 mA of output current.
- Wide Operating Range: Operates over a supply voltage range of 5.0 V to 18 V and an extended industrial temperature range of -40°C to +125°C.
- No External Capacitor Required: Does not require a large output capacitor for stability, although a 0.1 µF capacitor at the output can help improve noise suppression.
- Trim Terminal: Includes a trim terminal to adjust the output voltage over a ±0.5% range without compromising performance).
Applications
- Precision Data Acquisition Systems: Ideal for systems requiring high accuracy and low noise voltage references).
- High Resolution Data Converters: Suitable for applications needing precise voltage references to ensure high resolution data conversion).
- Medical Instruments: Used in medical devices where accuracy and stability are critical).
- Industrial Process Control Systems: Applied in industrial control systems that require reliable and accurate voltage references).
- Optical Control Circuits: Utilized in optical control circuits where low noise and high accuracy are essential).
- Precision Instruments: Employed in various precision instruments that demand stable and accurate voltage references).
Q & A
- What is the output voltage of the ADR433ARZ-REEL7?
The output voltage of the ADR433ARZ-REEL7 is 3.0 V, with initial accuracy options for A and B grades).
- What is the operating temperature range of the ADR433ARZ-REEL7?
The operating temperature range is -40°C to +125°C).
- What is the supply voltage range for the ADR433ARZ-REEL7?
The supply voltage range is 5.0 V to 18 V).
- Does the ADR433ARZ-REEL7 require an external capacitor for stability?
No, it does not require a large output capacitor for stability, although a 0.1 µF capacitor at the output can help improve noise suppression).
- What is the current source and sink capability of the ADR433ARZ-REEL7?
The ADR433ARZ-REEL7 can source up to 30 mA and sink up to -20 mA of output current).
- What are the key applications of the ADR433ARZ-REEL7?
Key applications include precision data acquisition systems, high resolution data converters, medical instruments, industrial process control systems, optical control circuits, and precision instruments).
- How does the ADR433ARZ-REEL7 minimize temperature-related voltage changes?
The ADR433ARZ-REEL7 uses temperature drift curvature correction and XFET technology to minimize temperature-related voltage changes).
- What is the noise performance of the ADR433ARZ-REEL7?
The noise performance is typically less than 3.75 µV p-p over the 0.1 Hz to 10.0 Hz band).
- What package options are available for the ADR433ARZ-REEL7?
The ADR433ARZ-REEL7 is available in 8-lead MSOP and 8-lead narrow SOIC packages).
- Can the output voltage of the ADR433ARZ-REEL7 be adjusted?
Yes, the output voltage can be adjusted over a ±0.5% range using the trim terminal without compromising performance).
