LM385Z-1.2/LFT3

$0.62

Description：IC VREF SHUNT -2.43%/+2.02% TO92
Series：-
Mfr：Texas Instruments
Package：Cut Tape (CT),Tape & Box (TB)

SKU:b8c77d0fdee1 Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT -2.43%/+2.02% TO92
Series：-
Mfr：Texas Instruments
Package：Cut Tape (CT),Tape & Box (TB)
Output Type：Fixed
Voltage - Output (Min/Fixed)：1.235V
Voltage - Output (Max)：-
Current - Output：20 mA
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

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LM385Z-1.2/LFT3

Overview

The LM385Z-1.2/LFT3 is a micropower shunt voltage reference manufactured by Texas Instruments, housed in a TO-92 three-pin through-hole package. It provides a nominal output voltage of 1.235V with an initial accuracy of ±2.0%. The device operates within a wide current range from 10µA to 20mA and features a maximum temperature coefficient of 150 ppm/°C. Designed for commercial applications, it functions between 0°C and +70°C. Key electrical parameters include a dynamic impedance of 1Ω and a load regulation of 20mV.

Feature Summary

Micropower bandgap design enabling operation across a wide current range from 10µA to 20mA
Low dynamic impedance of 1Ω ensures stable performance under varying load conditions
Fixed 1.235V output voltage with ±2.0% initial precision tolerance
Compact TO-92 through-hole package suitable for space-constrained analog circuits

Applications

Portable instrumentation requiring extended battery life
Analog-to-digital converter (ADC) reference sources
Battery-powered monitoring systems
General-purpose linear regulators

Procurement Notes

Verify the specific suffix LFT3 against the official datasheet to confirm pinout and marking details. Ensure the procurement source provides valid RoHS compliance documentation. Confirm that the TO-92 package matches the required PCB footprint. Check for any recent Product Change Notifications regarding manufacturing site changes or material updates.

Selection Notes

Select this component when a fixed 1.235V reference is required in a through-hole configuration. It is suitable for designs prioritizing low power consumption over high precision. Consider alternative packages like SOT-23 if surface-mount technology is mandatory. Evaluate the ±2.0% tolerance against circuit requirements before finalizing the design.

Part Context

This part belongs to the LM385 family of adjustable and fixed micropower voltage references. The series utilizes bandgap technology to provide stable reference voltages. The LM385Z-1.2 variant specifically offers a fixed 1.235V output, distinguishing it from adjustable versions. It serves as a cost-effective solution for basic voltage referencing needs in commercial electronics.