Overview
The ADR4525ARZ, produced by Analog Devices Inc., is a high-precision, low-power, low-noise voltage reference. This device is part of the ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 family, known for its innovative core topology that achieves high accuracy and industry-leading temperature stability and noise performance. The ADR4525ARZ is particularly suited for applications requiring stable voltage references across a wide range of temperatures and conditions.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | VIN = 3 V to 15 V, IL = 0 mA, TA = 25°C | 2.500 | V | ||
| Initial Output Voltage Error | VOUT_ERR | B grade | ±0.02% | % | ||
| Temperature Coefficient | TCVOUT | B grade, −40°C ≤ TA ≤ +125°C | 2 ppm/°C | ppm/°C | ||
| Line Regulation | ΔVOUT/ΔVIN | −40°C ≤ TA ≤ +125°C | 1 ppm/V | ppm/V | ||
| Load Regulation | ΔVOUT/ΔIL | IL = 0 mA to +10 mA source, −40°C ≤ TA ≤ +125°C | 30 ppm/mA | ppm/mA | ||
| Operating Current | 950 μA | μA | ||||
| Low Dropout Voltage | At 2 mA | 300 mV | mV | |||
| Operating Temperature Range | TA | −40°C | +125°C | °C | ||
| Supply Voltage | VIN | 16 V | V |
Key Features
- High precision with ±0.02% maximum initial error (B grade)
- Low power consumption with a maximum operating current of 950 μA
- Low noise and excellent temperature stability
- 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
- Low thermally induced output voltage hysteresis and low long-term output voltage drift
- Qualified for automotive applications (ADR4525W)
Applications
The ADR4525ARZ is suitable for a variety of applications that require high-precision voltage references, including:
- Portable equipment due to its low power consumption and low dropout voltage
- Automotive systems, with the ADR4525W version qualified for such applications
- RF front-end GaN power amplifier biasing, protection, and control
- High-precision measurement and instrumentation
- Power supply systems requiring stable voltage references
Q & A
- What is the output voltage of the ADR4525ARZ?
The output voltage of the ADR4525ARZ is 2.5 V. - What is the maximum initial error of the ADR4525ARZ?
The maximum initial error is ±0.02% for B grade devices. - What is the operating current of the ADR4525ARZ?
The maximum operating current is 950 μA. - What is the low dropout voltage of the ADR4525ARZ?
The low dropout voltage is 300 mV at 2 mA. - What are the available package types for the ADR4525ARZ?
The device is available in 8-lead SOIC and LCC packages. - What is the operating temperature range of the ADR4525ARZ?
The operating temperature range is −40°C to +125°C. - Is the ADR4525ARZ suitable for automotive applications?
- What are some typical applications of the ADR4525ARZ?
Typical applications include portable equipment, RF front-end GaN power amplifier biasing, and high-precision measurement and instrumentation.- What is the line regulation of the ADR4525ARZ?
The line regulation is 1 ppm/V over the temperature range of −40°C to +125°C.- What is the load regulation of the ADR4525ARZ?
The load regulation is 30 ppm/mA from 0 mA to +10 mA source current over the temperature range of −40°C to +125°C. - What are some typical applications of the ADR4525ARZ?
