Analog Devices Inc. ADR443BRZ: A High-Precision Voltage Reference

The ADR443BRZ from Analog Devices Inc. is a high-precision, low-noise voltage reference that offers a stable output across a wide range of operating conditions. This component is part of the ADR44x series, which is renowned for its excellent temperature stability and low output noise, making it an ideal choice for high-end applications that require a precise voltage reference.

Key Features

• Output Voltage: The ADR443BRZ provides a fixed output voltage of 3.0 volts, which is accurate to ±0.1% over the entire temperature range.
• Low Temperature Coefficient: It has an impressive low temperature coefficient (tempco) of 3 ppm/°C (typical), ensuring minimal deviation in output voltage with changes in ambient temperature.
• Low Noise: With an output noise of just 2 µV p-p/V (0.1 Hz to 10 Hz), the ADR443BRZ is suitable for sensitive applications such as precision data converters and medical instrumentation.
• Wide Operating Range: The device operates over a broad supply voltage range from 4.1 V to 18 V and can source up to 10 mA of output current, providing flexibility in a variety of circuit configurations.
• High Output Impedance: The high output impedance and low dynamic impedance make it easy to filter and ensure stability with capacitive loads.
• Package Options: Available in an 8-lead SOIC package, the ADR443BRZ is designed for surface-mount technology, allowing for efficient assembly and space-saving on circuit boards.

Applications

The ADR443BRZ is particularly well-suited for high-precision applications where a stable reference voltage is critical. These include:

• Precision data acquisition systems
• High-resolution converters
• Battery-powered equipment
• Industrial controls
• Medical and scientific instrumentation

With its combination of accuracy, stability, and low noise, the ADR443BRZ from Analog Devices Inc. is a reliable choice for engineers and designers looking to enhance the performance of their electronic systems. Its robust design and consistent performance under varying conditions make it a go-to voltage reference for demanding applications.