Overview
The ADR4520ARZ is a high-precision, ultra-low-noise voltage reference from Analog Devices Inc. This device is part of the ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 family, known for its excellent temperature stability and low output noise. The ADR4520ARZ is specifically designed to provide a fixed output voltage of 2.048V, making it suitable for a wide range of applications requiring high accuracy and stability.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | VIN = 5.1 V to 15 V, IL = 0 mA, TA = 25°C | 2.048 | V | ||
| Initial Output Voltage Error | VOUT_ERR | B, C, D Grade | ±0.02% | % | ||
| Temperature Coefficient (TCVOUT) | TCVOUT | D Grade 0°C to 70°C | 0.8 | ppm/°C | ||
| Maximum Operating Current | IOUT | 950 | μA | |||
| Maximum Low Dropout Voltage | VDO | 300 | mV | |||
| Operating Temperature Range | TA | -40 | 125 | °C | ||
| Package Type | 8-Lead SOIC |
Key Features
- High precision with ±0.02% maximum initial error for B, C, and D grades.
- Ultra-low noise and excellent temperature stability.
- Low, thermally induced output voltage hysteresis and low long-term output voltage drift.
- Maximum operating current of 950 μA and maximum low dropout voltage of 300 mV.
- Available in an 8-lead SOIC package.
- Qualified for automotive applications (ADR4525W model).
Applications
The ADR4520ARZ is suitable for various applications requiring high accuracy and stability, including:
- Portable equipment due to its low power consumption and low dropout voltage.
- Automotive systems, particularly the ADR4525W model which is qualified for automotive applications.
- Industrial and commercial systems where precise voltage references are crucial.
- Measurement and testing equipment where high accuracy is essential.
Q & A
- What is the output voltage of the ADR4520ARZ?
The output voltage of the ADR4520ARZ is 2.048V. - What is the maximum initial error for the B, C, and D grades of the ADR4520ARZ?
The maximum initial error for the B, C, and D grades is ±0.02%. - What is the temperature coefficient (TCVOUT) for the D grade of the ADR4520ARZ?
The temperature coefficient (TCVOUT) for the D grade is 0.8 ppm/°C over the temperature range of 0°C to 70°C. - What is the maximum operating current of the ADR4520ARZ?
The maximum operating current is 950 μA. - What is the maximum low dropout voltage of the ADR4520ARZ?
The maximum low dropout voltage is 300 mV. - In what package type is the ADR4520ARZ available?
The ADR4520ARZ is available in an 8-lead SOIC package. - Is the ADR4520ARZ suitable for automotive applications?
While the ADR4520ARZ itself is not specifically qualified for automotive applications, the ADR4525W model from the same family is qualified for automotive use. - What are the key features of the ADR4520ARZ that make it suitable for portable equipment?
The ADR4520ARZ features low power consumption and a low dropout voltage, making it suitable for portable equipment. - What is the operating temperature range of the ADR4520ARZ?
The operating temperature range of the ADR4520ARZ is -40°C to +125°C. - How does the ADR4520ARZ improve system accuracy over time and temperature variations?
The ADR4520ARZ improves system accuracy through its low, thermally induced output voltage hysteresis and low long-term output voltage drift.
