REF5045IDGKR

Overview

The REF5045IDGKR is a precision series voltage reference from Texas Instruments, delivering a fixed output of 4.5V with an initial accuracy of ±0.05%. It features a low temperature coefficient of 3 ppm/°C and operates within an input voltage range of 4.7V to 18V. The device supports a maximum load current of 10mA and draws a typical supply current of 1.2mA. It functions reliably across an extended temperature range from -40°C to +125°C and is housed in an 8-pin VSSOP package.

Feature Summary

• Delivers high-precision fixed voltage output with tight initial accuracy tolerance.
• Maintains stable performance over wide input voltage variations and extreme temperatures.
• Integrates bidirectional output drive capability for flexible load interfacing.
• Includes internal protection mechanisms against overcurrent and thermal overload conditions.

Applications

• High-resolution data acquisition systems requiring precise ADC/DAC references
• Industrial process control loops and sensor signal conditioning circuits
• Medical instrumentation demanding stable measurement baselines
• Portable battery-powered precision test equipment

Procurement Notes

Verify the specific suffix IDGKR confirms the VSSOP-8 surface-mount package and reel packaging format. Ensure the design requires the 4.5V nominal output and 10mA drive capability. Confirm compatibility with the specified operating temperature range and input voltage constraints before finalizing component selection for production.

Selection Notes

Select this component when system requirements demand low drift and high accuracy in a compact footprint. Compare against other REF50xx variants if different output voltages or looser accuracy tolerances are acceptable. Consider the power consumption profile relative to battery life requirements in portable applications.

Part Context

This part belongs to the REF50xx family of low-noise, ultra-low drift precision voltage references designed by Texas Instruments. The series offers various fixed output options while maintaining consistent performance characteristics such as low noise and high stability across industrial and automotive environments.

Replacement Considerations

REF5045IDGKT serves as a tape-and-reel alternative within the same package family. REF5045ID provides the same electrical specifications but utilizes an SOIC-8 package instead of VSSOP-8.