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ADR520BRT-R2
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Product Detailed Parameters
- Description：IC VREF SHUNT PREC 2.048V SOT23
- Series：-
- Mfr：Analog Devices Inc.
- Package：Cut Tape (CT)
- Output Type：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The ADR520BRT-R2 is a high precision shunt mode voltage reference manufactured by Analog Devices Inc. It provides a nominal output voltage of 2.048 V with an initial accuracy of ±0.2% and a maximum temperature coefficient of 40 ppm/°C. The device operates within an industrial temperature range of −40°C to +85°C and requires an operating current between 50 μA and 15 mA. It features ultralow output voltage noise of 14 μV p-p (0.1 Hz to 10 Hz) and does not require an external compensation capacitor. The component is housed in a 3-Lead SOT-23-3 package.
Feature Summary
- Ultracompact 3-Lead SOT-23-3 package design for space-critical applications
- High precision performance with ±0.2% initial accuracy and 40 ppm/°C temperature coefficient
- Low output voltage noise of 14 μV p-p without requiring external capacitors
- Trim terminal available for adjusting output voltage over a ±0.5% range
Applications
- Portable, battery-powered equipment
- Automotive systems
- Data acquisition systems
- Instrumentation and process control
- Energy measurement
Procurement Notes
Verify the specific ordering suffix R2 indicates the 250 parts per reel packaging configuration when sourcing this component. Confirm that the Grade B designation aligns with the required ±0.2% initial accuracy and 40 ppm/°C temperature coefficient specifications for your application. Ensure the 3-Lead SOT-23-3 package option matches your PCB footprint requirements.
Selection Notes
Select the ADR520BRT-R2 when a precise 2.048 V reference is needed in a small form factor. The Grade B variant offers tighter accuracy than the Grade A version. Consider the trim terminal if system-level calibration is necessary to compensate for errors. Verify that the minimum operating current of 50 μA meets the power constraints of the target circuit.
Part Context
This component belongs to the ADR520/ADR525/ADR530/ADR540/ADR550 series of high precision shunt voltage references. These devices utilize band gap concepts to achieve stable performance across varying temperatures. The series is designed to be pin-compatible with industry-standard alternatives like the LM4040/LM4050, facilitating direct replacements in existing designs.
Replacement Considerations
The datasheet notes pin compatibility with the LM4040/LM4050. Designers should verify electrical parameter alignment before substituting these components.
FAQ
Does the ADR520BRT-R2 require an external capacitor for stability?
No, the advanced design eliminates the need for an external compensation capacitor, though it remains stable with any capacitive load.
What is the purpose of the TRIM3 terminal on the ADR520BRT-R2?
The trim terminal allows adjustment of the output voltage over a ±0.5% range without affecting the temperature coefficient, enabling users to trim out system errors.
