LM369 Datasheet Precision Voltage Reference

Manufacturer: National Semiconductor (now Texas Instruments)

Download the LM369 datasheet PDF. This datasheet also includes the LM3 variant, as both parts are published together in a single manufacturer document.

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LM369 precision voltage reference by National Semiconductor (now Texas Instruments) - Datasheet Preview — Note: The manufacturer provides a single datasheet file (LM3-69.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	LM369
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	262.98 KB
Description	Precision Voltage Reference
Datasheet	LM369 Datasheet

General Description

The LM169 LM369 are precision monolithic temperaturecompensated voltage references They are based on a buried zener reference as pioneered in the LM199 references but do not require any heater as they rely on special temperature-compensation techniques (Patent Pending) The LM169 makes use of thin-film technology enhanced by the discrete laser trimming of resistors to achieve excellent Temperature coefficient (Tempco) of Vout (as low as 1 ppm C) along with tight initial tolerances (as low as 0 05% max) The trim scheme is such that individual resistors are cut open rather than being trimmed (partially cut) to avoid resistor drift caused by electromigration in the trimmed area The LM169 also provides excellent stability vs changes in input voltage and output current (both sourcing and sinking) The devices have a 10 000V output and will operate in either series or shunt mode the output is short-circuit-proof to ground A trim pin is available which permits fine-trimming of Vout and also permits filtering to greatly decrease the output noise by adding a small capacitor (0 05 to 0 5 mF)

Overview

LM169 LM369 Precision Voltage Reference December 1994 LM169 LM369 Precision Voltage.

Key Features

Y Y Y Y Y Y Y Y Low Tempco 3 ppm C g 5 mV Excellent initial accuracy Excellent line regulation 4 ppm V g 0 8X Excellent output impedance Excellent thermal regulation g 20 ppm 100 mW Low noise Easy to filter output noise Operates in series or shunt mode (max) (max) (max) (max) (max).

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