ZXRE1004DRSTOA

Overview

The ZXRE1004DRSTOA is a discontinued 1.22V bandgap voltage reference from Diodes Incorporated, available in an E-Line (TO-92 style) package with suffix -R and tape-and-reel packing with suffix -TA. It provides a fixed output voltage with a typical temperature coefficient of 20ppm/°C and operates within a current range of 8µA to 20mA. The device features unconditionally stable performance under capacitive loads and offers high noise rejection suitable for precision applications.

Feature Summary

• Provides a stable 1.22V reference voltage with low temperature drift
• Designed for ultra-low power consumption with minimal knee current
• Maintains stability when driving significant capacitive loads
• Offers pin-compatible alternative to legacy industry references

Applications

• Battery powered equipment
• Precision power supplies
• Portable instrumentations
• Data acquisition systems
• A/D and D/A converters

Procurement Notes

This component is officially marked as obsolete and not recommended for new design by the manufacturer. Verify availability through secondary market channels or consider immediate replacement strategies. Ensure any sourced units match the specific E-Line package and tolerance requirements, as older stock may vary in packaging condition.

Selection Notes

Select this part only if existing designs require a direct drop-in replacement for REF1004, LT1004, or LM185/385 series references in TO-92 compatible form factors. Evaluate the 1% tolerance option against tighter precision needs, noting that lower tolerance variants may require separate sourcing. Confirm that the operating temperature range meets system environmental constraints.

Part Context

The ZXRE1004 series serves as a micro-power voltage reference designed for portable and battery-operated electronics. It bridges the gap between standard shunt references and high-precision bandgap circuits, offering a balance of low quiescent current and robust load regulation capabilities across various industrial and consumer applications.

Replacement Considerations

The datasheet explicitly recommends using the ZXRE125 as the replacement for this obsolete part. Verify electrical compatibility before substitution.