Overview
The ADR421ARMZ from Analog Devices Inc. is an ultraprecision, low noise voltage reference featuring the second generation extra implanted junction FET (XFET) technology. This device is designed to provide high accuracy, low noise, and excellent long-term stability. The XFET architecture and patented temperature drift curvature correction technique ensure superior performance compared to traditional band gap references. The ADR421ARMZ is widely used in various precision applications, including data acquisition systems, high resolution converters, battery-powered instrumentation, portable medical instruments, and industrial process control systems.
Key Specifications
| Parameter | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage | VOUT | 2.497 | 2.500 | 2.503 | V |
| Initial Accuracy | VOUTERR | -3 | - | 3 | mV |
| Initial Accuracy (%) | - | -0.12 | 0.12 | % | |
| Temperature Coefficient | TCVOUT | 2 | - | 10 | ppm/°C |
| Operating Temperature Range | TA | -40 | - | 125 | °C |
| Supply Voltage Range | VIN | 4.5 | - | 18 | V |
| Line Regulation | ΔVOUT/ΔVIN | - | - | 35 | ppm/V |
| Load Regulation | - | - | - | 70 | ppm/mA |
| Long-term Stability | - | - | - | 50 ppm/1000 hours | - |
| Package Style | - | - | - | 8-Lead MSOP | - |
Key Features
- Ultraprecision low noise voltage reference using XFET technology.
- Low noise: 0.1 Hz to 10 Hz (at 1.75 µV p-p).
- High accuracy and long-term stability.
- Patented temperature drift curvature correction technique.
- Low hysteresis: 40 ppm typical.
- Operating temperature range: -40°C to +125°C.
- Low line and load regulation.
Applications
- Precision data acquisition systems.
- High resolution converters.
- Battery-powered instrumentation.
- Portable medical instruments.
- Industrial process control systems.
- Precision instruments.
- Optical network control circuits.
Q & A
- What is the output voltage of the ADR421ARMZ?
The output voltage of the ADR421ARMZ is 2.500 V, with an initial accuracy of ±0.12% (±3 mV).
- What is the operating temperature range of the ADR421ARMZ?
The operating temperature range is -40°C to +125°C.
- What is the noise performance of the ADR421ARMZ?
The noise performance is 0.1 Hz to 10 Hz (at 1.75 µV p-p).
- What is the long-term stability of the ADR421ARMZ?
The long-term stability is 50 ppm/1000 hours.
- What is the package style of the ADR421ARMZ?
The package style is an 8-Lead MSOP.
- What are some common applications of the ADR421ARMZ?
Common applications include precision data acquisition systems, high resolution converters, battery-powered instrumentation, and industrial process control systems).
- What is the supply voltage range for the ADR421ARMZ?
The supply voltage range is 4.5 V to 18 V).
- What is the line regulation of the ADR421ARMZ?
The line regulation is 35 ppm/V).
- What is the load regulation of the ADR421ARMZ?
The load regulation is 70 ppm/mA).
- What technology does the ADR421ARMZ use?
The ADR421ARMZ uses XFET (extra implanted junction FET) technology).
