LT1004IDRG4-1-2

Voltage Reference Overview

The LT1004IDRG4-1-2 is a micropower integrated precision voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.235 V with an initial accuracy of 0.8%. The device operates within a temperature range of -40°C to +85°C and features a maximum shunt current of 20 mA. It utilizes a TSSOP-8 surface-mount package and exhibits a temperature coefficient of 20 ppm/°C, ensuring stable performance across varying thermal conditions.

Voltage Reference Feature Summary

• Provides a fixed precision output voltage of 1.235 V for accurate circuit referencing
• Operates as a shunt reference type with low power consumption characteristics
• Maintains stability over a wide industrial temperature range from -40°C to +85°C

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage benchmarks
• Battery-powered instrumentation circuits

Voltage Reference Procurement Notes

Verify the specific suffix IDRG4 corresponds to the TSSOP-8 tape-and-reel packaging configuration. Confirm the -1-2 designation indicates the 1.235 V output variant. Ensure compatibility with the target PCB footprint and reflow soldering profile requirements for the specified package style before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when a low-cost, micropower shunt reference is required for applications needing a 1.235 V benchmark. It is suitable for designs prioritizing moderate accuracy (0.8%) and low quiescent current over ultra-high precision. Consider the TSSOP-8 package constraints and the 20 ppm/°C temperature drift specification against the system's thermal environment requirements.

Voltage Reference Part Context

This part belongs to the LT1004 series of micropower integrated voltage references. It serves as a cost-effective alternative to higher-precision bandgap references in applications where tight tolerance is not critical. The series is widely used in general-purpose industrial and consumer electronics for providing stable reference voltages in signal conditioning chains.

Voltage Reference Replacement Considerations

LT1004CDRG4-1-2 offers identical electrical specifications in a SOIC-8 package. LM285-1.2 provides a similar 1.2 V reference but may differ in accuracy and temperature coefficient specifications.