REF5050ID

Overview

The REF5050ID is a fixed voltage reference IC from Texas Instruments, providing a precise 5 V output. It features an initial accuracy of ±0.05% and a temperature coefficient of 3 ppm/°C. The device operates within an input voltage range of 5.2 V to 18 V and supports a maximum output current of 10 mA. With a line regulation of 1 ppm/V and load regulation of 30 ppm/mA, it ensures stable performance. The component is housed in an 8-pin SOIC package and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Delivers high precision with an initial accuracy of ±0.05% and low temperature drift of 3 ppm/°C for stable reference voltages.
• Utilizes a series topology to provide excellent line and load regulation capabilities under varying operating conditions.
• Supports bidirectional current flow, allowing the device to both source and sink current up to 10 mA.

Applications

• High-precision data acquisition systems requiring stable voltage references
• Calibration circuits for measurement instruments
• Analog-to-digital converter (ADC) reference inputs

Procurement Notes

Verify the specific suffix 'ID' corresponds to the standard grade SOIC-8 package configuration. Confirm that the required accuracy matches the ±0.05% specification rather than the A-grade variant. Ensure the application environment stays within the specified -40°C to +125°C operating temperature range. Check for moisture sensitivity level requirements during storage and handling procedures.

Selection Notes

Select this part when a fixed 5 V reference with high accuracy is needed. The ±0.05% tolerance distinguishes it from lower-accuracy variants. Consider the 8-pin SOIC footprint for surface-mount assembly. Evaluate the 10 mA output capability against the load requirements of the connected circuitry to ensure adequate drive strength.

Part Context

This component belongs to the REF50xx family of precision voltage references from Texas Instruments. These devices are designed for applications demanding high stability and low noise. The REF5050ID specifically represents the 5 V output version in the standard accuracy grade, utilizing a series reference topology for optimal performance in sensitive analog circuits.

Replacement Considerations

REF5050AIDR offers similar functionality but with ±0.1% accuracy and 8 ppm/°C drift. REF5050IDR provides the same electrical specifications as the ID suffix but in a tape-and-reel packaging format for automated assembly processes.