Overview
The ADR4540ARZ from Analog Devices Inc. is a high-precision, ultra-low noise voltage reference designed for applications requiring stable and accurate voltage outputs. This device is part of the ADR45xx series, known for its innovative core topology that achieves high accuracy and excellent temperature stability. The ADR4540ARZ is particularly suited for use in a wide range of applications, including precision instrumentation, medical devices, and high-reliability industrial systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VOUT) | 4.096 | V |
| Initial Output Voltage Error | ±0.04% (A grade), ±0.02% (B grade) | % |
| Temperature Coefficient (TCVOUT) | 2 ppm/°C (B grade), 4 ppm/°C (A grade) | ppm/°C |
| Line Regulation (ΔVOUT/ΔVIN) | 1-10 ppm/V | ppm/V |
| Load Regulation (ΔVOUT/ΔIL) | 25-80 ppm/mA (source), 60-120 ppm/mA (sink) | ppm/mA |
| Quiescent Current (IQ) | 700-950 μA | μA |
| Dropout Voltage (VDO) | 100 mV (no load), 300 mV (IL = 2 mA) | mV |
| Output Current Capacity (IL) | -10 mA to +10 mA | mA |
| Output Voltage Noise (eNp-p) | 2.1 μV p-p (0.1 Hz to 10 Hz) | μV p-p |
| Output Voltage Noise Density (eN) | 64.2 nV/√Hz (at 1 kHz) | nV/√Hz |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package | 8-Lead SOIC |
Key Features
- High Precision: The ADR4540ARZ offers high accuracy with an initial output voltage error of ±0.04% (A grade) and ±0.02% (B grade).
- Ultra-Low Noise: This device features low output voltage noise, with a noise density of 64.2 nV/√Hz at 1 kHz and a peak-to-peak noise of 2.1 μV from 0.1 Hz to 10 Hz.
- Excellent Temperature Stability: The temperature coefficient is as low as 2 ppm/°C (B grade) and 4 ppm/°C (A grade), ensuring stable performance over a wide temperature range.
- Low Power Consumption: The device operates with a quiescent current of 700-950 μA, making it suitable for battery-powered and portable applications.
- Low Dropout Voltage: A maximum dropout voltage of 300 mV allows the device to function efficiently with minimal voltage headroom.
- Wide Operating Range: The ADR4540ARZ operates over an extended industrial temperature range of -40°C to +125°C.
Applications
- Precision Instrumentation: Ideal for applications requiring high accuracy and stability, such as precision voltage sources, calibration equipment, and measurement instruments.
- Medical Devices: Suitable for medical equipment that demands high reliability and precision, such as patient monitoring systems and diagnostic devices.
- Industrial Systems: Used in high-reliability industrial systems, including process control, automation, and data acquisition systems.
- Portable Equipment: The low power consumption and low dropout voltage make it suitable for battery-powered devices and portable equipment).
Q & A
- What is the output voltage of the ADR4540ARZ?
The output voltage of the ADR4540ARZ is 4.096V).
- What is the initial output voltage error of the ADR4540ARZ?
The initial output voltage error is ±0.04% for A grade and ±0.02% for B grade).
- What is the temperature coefficient of the ADR4540ARZ?
The temperature coefficient is 2 ppm/°C for B grade and 4 ppm/°C for A grade).
- What is the operating temperature range of the ADR4540ARZ?
The operating temperature range is -40°C to +125°C).
- What is the quiescent current of the ADR4540ARZ?
The quiescent current is between 700 μA and 950 μA).
- What is the maximum dropout voltage of the ADR4540ARZ?
The maximum dropout voltage is 300 mV at IL = 2 mA).
- What is the output current capacity of the ADR4540ARZ?
The output current capacity is -10 mA to +10 mA).
- What is the noise density of the ADR4540ARZ at 1 kHz?
The noise density at 1 kHz is 64.2 nV/√Hz).
- In what package is the ADR4540ARZ available?
The ADR4540ARZ is available in an 8-lead SOIC package).
- Is the ADR4540ARZ RoHS compliant?
Yes, the ADR4540ARZ is RoHS compliant).
