TL4051CIDBZT

Overview

The TL4051CIDBZT is a precision micropower shunt voltage reference manufactured by Texas Instruments. It operates within an industrial temperature range of -40°C to 85°C and utilizes a SOT-23 package with three terminals. The device provides a fixed output voltage of 1.225V with a maximum initial tolerance of ±0.5%. It features a typical dynamic impedance, low noise of 20µVrms (0.1Hz to 10Hz), and a temperature coefficient of 50ppm/°C. The minimum operating current is typically 45µA, supporting a wide operating current range up to 12mA without requiring external capacitors for stability.

Feature Summary

• Offers a fixed 1.225V output option alongside adjustable configurations via external resistors
• Ensures stability across all capacitive load conditions without requiring external output capacitors
• Delivers low output noise and low temperature coefficient for consistent performance
• Supports a wide operating current range from 60µA to 12mA

Applications

• Data acquisition systems
• Power supply monitoring circuits
• Instrumentation and test equipment
• Process control applications
• Battery-powered devices

Procurement Notes

Verify the specific suffix 'CIDBZT' to confirm the C-grade accuracy class and industrial temperature rating (-40°C to 85°C). Ensure the ordering code matches the required SOT-23-3 surface-mount package configuration. Cross-reference the manufacturer's latest datasheet to confirm RoHS compliance status and any recent product change notifications affecting pinout or electrical specifications before finalizing procurement.

Selection Notes

Select this component when a stable 1.225V reference is required in space-constrained designs using SOT-23 packaging. It is suitable for applications demanding low power consumption with a minimum quiescent current of approximately 45µA. Choose this part over higher-grade variants if the ±0.5% initial tolerance meets system accuracy requirements. Consider the extended temperature version if operation beyond 85°C is necessary.

Part Context

This device belongs to the TL4051 family of micropower shunt voltage references from Texas Instruments. The family includes variants with different accuracy grades (A, B, C) and temperature ranges (industrial and automotive/extended). The CIDBZT designation specifically identifies the C-grade accuracy variant housed in a SOT-23-3 package designed for industrial environments.

Replacement Considerations

TL4051CIDBZTG4 is a verified lead-free replacement variant within the same product family.