LM4040B20IDBZTG4

Overview

The LM4040B20IDBZTG4 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.048 V with an initial accuracy of 0.1%. The device operates within a temperature range of -40°C to +85°C and features a maximum temperature coefficient of 100 ppm/°C. It supports a shunt current range from a minimum of 75 µA to a maximum of 15 mA. The component is housed in a compact SOT-23-3 surface-mount package.

Feature Summary

• Provides high-precision voltage referencing with tight initial tolerance specifications
• Operates efficiently at low micropower levels suitable for battery-powered applications
• Maintains stable performance across industrial temperature ranges

Applications

• Portable instrumentation requiring precise voltage standards
• Battery-operated measurement devices
• Data acquisition systems needing accurate reference voltages

Procurement Notes

Verify the specific suffix IDBZTG4 against the manufacturer's latest documentation to confirm package type, tape-and-reel quantity, and environmental compliance status. Ensure the ordering code matches the required grade and packaging format for your production line.

Selection Notes

Select this component when a 2.048 V reference with 0.1% accuracy is required. Consider the 100 ppm/°C temperature coefficient for thermal stability needs. Verify that the circuit design can accommodate the minimum operating current of 75 µA and the maximum shunt current capability of 15 mA.

Part Context

This part belongs to the LM4040 family of micropower shunt voltage references. The family offers various fixed output voltages including 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. Different grades (A, B, C, D) provide varying levels of accuracy and temperature coefficient performance.

Replacement Considerations

Direct substitutes include LM4040AIM3-2.0/NOPB and LM4040AIM3X-2.0/NOPB. Verify pinout compatibility and electrical parameter alignment before substitution.