Overview
The ADR4550ARZ, produced by Analog Devices Inc., is an ultra-low-noise, high-accuracy 5.0V voltage reference. This device is part of a family of voltage references that include the ADR4520, ADR4525, ADR4530, ADR4533, and ADR4540. It is designed to offer high precision, low power consumption, and excellent temperature stability, making it suitable for a wide range of applications, particularly in precision electronics and portable equipment.
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 | 5.000 | V | ||
| Initial Output Voltage Error | VOUT_ERR | B, C, D Grade | ±0.02% | 1 mV | %/mV | |
| Temperature Coefficient (TCVOUT) | TCVOUT | D Grade 0°C ≤ TA ≤ +70°C | 0.8 | ppm/°C | ||
| Operating Current | IQ | Maximum | 950 μA | μA | ||
| Low Dropout Voltage | VDO | At 2 mA | 300 mV | mV | ||
| Operating Temperature Range | TA | -40°C | +125°C | °C | ||
| Package Type | 8-Lead SOIC |
Key Features
- Ultra-low noise and high accuracy with ±0.02% maximum initial error for B, C, and D grades.
- Excellent temperature stability with a temperature coefficient as low as 0.8 ppm/°C for D grade.
- Low output noise and low long-term output voltage drift.
- Low quiescent current of 950 μA and low dropout voltage of 300 mV at 2 mA.
- Available in 8-lead SOIC and LCC packages.
- Extended industrial temperature range of -40°C to +125°C.
Applications
The ADR4550ARZ is suitable for various applications requiring high precision and low noise, including:
- Precision electronics and instrumentation.
- Portable equipment and battery-powered devices.
- Automotive applications (specific models like ADR4525W).
- Industrial and medical devices where high accuracy and stability are crucial.
Q & A
- What is the output voltage of the ADR4550ARZ?
The output voltage of the ADR4550ARZ is 5.000 V. - What is the maximum initial output voltage error for the B, C, and D grades?
The maximum initial output voltage error for the B, C, and D grades is ±0.02%. - What is the temperature coefficient (TCVOUT) for the D grade?
The temperature coefficient (TCVOUT) for the D grade is 0.8 ppm/°C. - What is the maximum operating current of the ADR4550ARZ?
The maximum operating current is 950 μA. - What is the low dropout voltage at 2 mA?
The low dropout voltage at 2 mA is 300 mV. - What are the available package types for the ADR4550ARZ?
The ADR4550ARZ is available in 8-lead SOIC and LCC packages. - What is the operating temperature range of the ADR4550ARZ?
The operating temperature range is -40°C to +125°C. - Is the ADR4550ARZ suitable for automotive applications?
While the ADR4550ARZ itself is not specifically qualified for automotive applications, similar models like the ADR4525W are qualified for such use. - What are some typical applications of the ADR4550ARZ?
Typical applications include precision electronics, portable equipment, and industrial and medical devices where high accuracy and stability are crucial. - How does the ADR4550ARZ achieve high accuracy and low noise?
The ADR4550ARZ uses an innovative core topology to achieve high accuracy and low noise, along with excellent temperature stability and low long-term output voltage drift.
