Overview
The ADR443BRZ from Analog Devices Inc. is an ultralow noise, LDO XFET voltage reference with current sink and source capabilities. This device is designed to offer high accuracy and low temperature drift performance, making it ideal for precision signal conversion applications. The ADR443BRZ utilizes Analog Devices' temperature drift curvature correction and extra implanted junction FET (XFET) technology, which minimizes voltage change vs. temperature nonlinearity. This technology provides better noise performance compared to buried zener references and operates with low supply voltage headroom of 500mV.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (VOUT) | 2.9988 | 3.000 | 3.0012 | V |
| Initial Accuracy (VOERR) | ±1.2 mV | mV | ||
| Temperature Drift (TCVOUT) | 1 | 3 | ppm/°C | |
| Line Regulation (ΔVOUT/ΔVIN) | 10 | 20 | ppm/V | |
| Load Regulation (ΔVOUT/ΔILOAD) | -50 | 50 | ppm/mA | |
| Operating Temperature Range | -40°C | 125°C | °C | |
| Output Noise (Vnoise) | 1.4µ | V p-p | ||
| Package Type | NSOIC | |||
| Pins | 8 |
Key Features
- Ultralow noise performance
- High accuracy with initial accuracy of ±1.2 mV
- Low temperature drift of 1 to 3 ppm/°C
- Current sink and source capabilities up to 10 mA and -5 mA respectively
- Low supply voltage headroom of 500 mV
- Trim terminal for adjusting output voltage over a 0.5% range
- Available in 8-lead MSOP and narrow SOIC packages
- Extended industrial temperature range of -40°C to +125°C
Applications
- Precision data acquisition systems
- High resolution data converters
- Battery-powered instrumentation
- Portable medical instruments
- Industrial process control systems
- Precision instruments
- Optical control circuits
Q & A
- What is the output voltage of the ADR443BRZ?
The output voltage of the ADR443BRZ is typically 3.0V, with a range of 2.9988V to 3.0012V.
- What is the temperature drift of the ADR443BRZ?
The temperature drift of the ADR443BRZ is 1 to 3 ppm/°C.
- What is the load regulation of the ADR443BRZ?
The load regulation of the ADR443BRZ is ±50 ppm/mA.
- What is the operating temperature range of the ADR443BRZ?
The operating temperature range of the ADR443BRZ is -40°C to +125°C.
- What package types are available for the ADR443BRZ?
The ADR443BRZ is available in 8-lead MSOP and narrow SOIC packages.
- Does the ADR443BRZ have current sink and source capabilities?
- What is the initial accuracy of the ADR443BRZ?
The initial accuracy of the ADR443BRZ is ±1.2 mV.
- Is the ADR443BRZ RoHS compliant?
- What are some typical applications of the ADR443BRZ?
The ADR443BRZ is typically used in precision data acquisition systems, high resolution data converters, battery-powered instrumentation, and medical instruments.
- What is the noise performance of the ADR443BRZ?
The ADR443BRZ has an ultralow noise performance with a typical output noise of 1.4µV p-p.
