AD5820BCPZ-REEL7

Overview

The AD5820BCPZ-REEL7 is a precision voltage reference manufactured by Analog Devices Inc. It provides a stable output voltage of 2.5 V with low noise characteristics suitable for high-resolution data acquisition systems. The device operates within a supply voltage range of 2.7 V to 36 V and draws a maximum quiescent current of 1.4 mA. It features a dropout voltage of typically 1.2 V at full load, ensuring efficient operation in battery-powered applications. The component is housed in an 8-pin SOIC package and is rated for operation over an extended temperature range from -40°C to +125°C.

Feature Summary

• Provides a precise 2.5 V output voltage with low initial accuracy error
• Features low noise performance to support high-resolution signal chains
• Operates with a wide input supply voltage range up to 36 V
• Includes internal short-circuit protection for robust system reliability

Applications

• High-resolution analog-to-digital converter (ADC) references
• Digital-to-analog converter (DAC) voltage sources
• Precision measurement instrumentation
• Battery-powered test and measurement equipment

Procurement Notes

Verify the specific suffix REEL7 indicates tape and reel packaging when ordering. Confirm the BC grade accuracy requirements against application needs. Ensure the SOIC-8 footprint matches the PCB design. Check for RoHS compliance status as per the latest manufacturer documentation. Validate supply voltage limits against the system power rail specifications.

Selection Notes

Select this component when a stable 2.5 V reference is required for precision analog circuits. Consider the low noise specification for sensitive ADC/DAC interfaces. Evaluate the wide input voltage range for flexibility in power supply design. Assess the thermal performance within the specified operating temperature range. Compare quiescent current consumption against battery life requirements.

Part Context

The AD5820 belongs to Analog Devices' family of precision voltage references designed for industrial and communication applications. It complements other parts like the AD584 and AD586 by offering a fixed 2.5 V output option. The series is known for combining low cost with high performance, making it suitable for general-purpose precision applications where stability and accuracy are critical.

Replacement Considerations

Direct substitutes include the AD5820ARZ or AD5820BRZ depending on accuracy grade requirements. Verify pinout compatibility before replacing. Ensure the replacement part meets the same noise and temperature coefficient specifications.