Overview
The ADR445BRZ is a high-precision voltage reference from Analog Devices Inc., part of the ADR440/ADR441/ADR443/ADR444/ADR445 series. This component is known for its ultralow noise, high accuracy, and low temperature drift, making it ideal for precision signal conversion applications. The ADR445BRZ is particularly suited for high-end data acquisition systems, optical networks, and medical applications due to its robust performance characteristics.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage (V) | 5.000 |
| Initial Accuracy (mV) | ±6 (A grade), ±2 (B grade) |
| Temperature Coefficient (ppm/°C) | 10 (A grade), 3 (B grade) |
| Output Current Capability | Source: up to 10 mA, Sink: up to -5 mA |
| Supply Voltage Operating Range (V) | 5.5 to 18 |
| Supply Voltage Headroom (mV) | 500 |
| Operating Temperature Range (°C) | -40 to +125 |
| Package Type | 8-lead MSOP and narrow SOIC |
Key Features
- Ultralow noise: 1.8 µV p-p (0.1 Hz to 10 Hz) for the ADR445 model
- High accuracy and low temperature drift
- Trim terminal for adjusting output voltage over a 0.5% range without compromising performance
- High output current capability: source up to 10 mA and sink up to -5 mA
- Wide supply voltage operating range: 5.5 V to 18 V
- Extended industrial temperature range: -40°C to +125°C
Applications
The ADR445BRZ is designed for use in various high-precision applications, including:
- High-end data acquisition systems
- Optical networks
- Medical applications
Q & A
- What is the output voltage of the ADR445BRZ?
The output voltage of the ADR445BRZ is 5.000 V. - What is the initial accuracy of the ADR445BRZ?
The initial accuracy is ±6 mV for the A grade and ±2 mV for the B grade. - What is the temperature coefficient of the ADR445BRZ?
The temperature coefficient is 10 ppm/°C for the A grade and 3 ppm/°C for the B grade. - What is the maximum output current capability of the ADR445BRZ?
The ADR445BRZ can source up to 10 mA and sink up to -5 mA. - What is the supply voltage operating range of the ADR445BRZ?
The supply voltage operating range is from 5.5 V to 18 V. - What is the operating temperature range of the ADR445BRZ?
The operating temperature range is from -40°C to +125°C. - In what packages is the ADR445BRZ available?
The ADR445BRZ is available in 8-lead MSOP and narrow SOIC packages. - Can the output voltage of the ADR445BRZ be adjusted?
Yes, the output voltage can be adjusted over a 0.5% range using the trim terminal. - What are some typical applications of the ADR445BRZ?
Typical applications include high-end data acquisition systems, optical networks, and medical applications. - What is the noise performance of the ADR445BRZ?
The ADR445BRZ has ultralow noise, with a specification of 1.8 µV p-p (0.1 Hz to 10 Hz).
