REF5050IDGKT

Overview

The REF5050IDGKT is a precision fixed voltage reference integrated circuit manufactured by Texas Instruments. It provides a stable 5 V output with an initial accuracy of ±0.05%. The device operates within an input voltage range of 5.2 V to 18 V and supports a maximum load current of 10 mA. Key electrical characteristics include a temperature coefficient of 3 ppm/°C and a supply current of 1.2 mA. It features low noise performance, specified at 15 µVpp from 0.1 Hz to 10 Hz. The component is housed in an 8-VSSOP surface-mount package and is rated for operation across a temperature range of -40°C to +125°C.

Feature Summary

• Delivers high-precision voltage regulation with tight initial tolerance specifications
• Maintains stability over wide thermal variations through low temperature drift characteristics
• Provides low-noise output suitable for sensitive analog signal processing applications

Applications

• High-resolution data acquisition systems requiring precise reference voltages
• Industrial process control instrumentation
• Medical diagnostic equipment
• Precision measurement devices

Procurement Notes

Verify the specific suffix IDGKT corresponds to the 8-VSSOP package and tape-and-reel packaging format. Confirm RoHS compliance status and moisture sensitivity level (MSL 2) requirements for your assembly process. Ensure the ordering part number matches the required ±0.05% accuracy grade rather than the standard or A-grade variants.

Selection Notes

Select this component when a fixed 5 V reference with sub-0.1% accuracy is required. The 8-VSSOP package offers a compact footprint for space-constrained designs. Consider the 10 mA output capability for driving moderate loads without external buffering. Evaluate the 3 ppm/°C drift against system thermal profiles to ensure long-term stability meets design specifications.

Part Context

This part belongs to the REF50xx series of precision voltage references from Texas Instruments. The series utilizes a bandgap architecture to provide stable outputs. The REF5050 specifically denotes the 5 V output variant. Other members in the family offer different voltage levels and accuracy grades, sharing similar pinouts and operational principles for modular design flexibility.

Replacement Considerations

Direct substitutes include REF5050AIDGKT (±0.1% accuracy) and REF5050IDR (SOIC-8 package). Verify pin compatibility and thermal performance when transitioning between package types.