Overview
The ADR4520ARZ-R7, produced by Analog Devices Inc., is a high precision, low power, and low noise voltage reference. This device is part of the ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 family, which features ±0.02% maximum initial error, excellent temperature stability, and low output noise. The innovative core topology of these devices ensures high accuracy and industry-leading temperature stability and noise performance. They are particularly suited for applications requiring high precision and reliability over a wide range of temperatures and conditions.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Output Voltage | 2.048 V | - |
| Initial Output Voltage Error | ±0.02% (maximum) | B, C, D grade |
| Temperature Coefficient (TCVOUT) | 0.8 ppm/°C (D grade), 1 ppm/°C (C grade), 2 ppm/°C (B grade), 4 ppm/°C (A grade) | Respective temperature ranges |
| Output Noise (0.1 Hz to 10 Hz) | Less than 1 μV p-p at VOUT of 2.048 V typical | - |
| Input Voltage Range | 3 V to 15 V | - |
| Operating Temperature Range | −40°C to +125°C (A and B grade), 0°C to +70°C (C and D grade) | - |
| Output Current | +10 mA source / −10 mA sink | - |
| Quiescent Current | 950 μA (maximum) | No load |
| Low Dropout Voltage | 300 mV at 2 mA (VOUT ≥ 3 V) | - |
| Package | 8-lead SOIC | - |
Key Features
- High precision with ±0.02% maximum initial error
- Excellent temperature stability with low temperature coefficient (TCVOUT)
- Low output noise, less than 1 μV p-p at VOUT of 2.048 V typical
- Low quiescent current of 950 μA (maximum)
- Low dropout voltage of 300 mV at 2 mA (VOUT ≥ 3 V)
- Available in 8-lead SOIC and LCC packages
- AEC-Q100 qualified for automotive applications (e.g., ADR4525W)
- Low long-term output voltage drift and thermally induced output voltage hysteresis
Applications
- Precision data acquisition systems
- High resolution data converters
- High precision measurement devices
- Industrial instrumentation
- Medical devices
- Automotive battery monitoring
Q & A
- What is the output voltage of the ADR4520ARZ-R7?
The output voltage of the ADR4520ARZ-R7 is 2.048 V.
- What is the maximum initial output voltage error for the ADR4520ARZ-R7?
The maximum initial output voltage error is ±0.02% for B, C, and D grades.
- What is the temperature coefficient (TCVOUT) for the ADR4520ARZ-R7?
The temperature coefficient varies by grade: 0.8 ppm/°C (D grade), 1 ppm/°C (C grade), 2 ppm/°C (B grade), and 4 ppm/°C (A grade).
- What is the output noise of the ADR4520ARZ-R7?
The output noise is less than 1 μV p-p at VOUT of 2.048 V typical.
- What is the input voltage range for the ADR4520ARZ-R7?
The input voltage range is 3 V to 15 V.
- What is the operating temperature range for the ADR4520ARZ-R7?
The operating temperature range is −40°C to +125°C for A and B grades, and 0°C to +70°C for C and D grades.
- What is the maximum output current of the ADR4520ARZ-R7?
The maximum output current is +10 mA source / −10 mA sink.
- What is the quiescent current of the ADR4520ARZ-R7?
The quiescent current is 950 μA (maximum) with no load.
- What is the low dropout voltage of the ADR4520ARZ-R7?
The low dropout voltage is 300 mV at 2 mA (VOUT ≥ 3 V).
- In what package is the ADR4520ARZ-R7 available?
The ADR4520ARZ-R7 is available in an 8-lead SOIC package.
- Is the ADR4520ARZ-R7 qualified for automotive applications?
While the ADR4520ARZ-R7 itself is not specifically qualified for automotive applications, the ADR4525W, which is part of the same family, is AEC-Q100 qualified for automotive use.
