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LM385M Voltage Reference Diode: Feature, Speification, Datasheet

IC VREF SHUNT 5.3V 2% 8SOIC The LM185/LM385 is a micropower 3-terminal adjustable band-gap voltage reference diode.

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Jun 4, 2021

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IC VREF SHUNT 5.3V 2% 8SOIC

The LM185/LM385 is a micropower 3-terminal adjustable band-gap voltage reference diode.

LM385M

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LM385M Description

Operating from 1.24 to 5.3V and over a 10μA to 20 mA current range, they feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to provide tight voltage tolerance. Since the LM185 band-gap reference uses only transistors and resistors, low noise and good long-term stability result.

The careful design of the LM185 has made the device tolerant of capacitive loading, making it easy to use in almost any reference application. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation.

The extremely low power drain of the LM185 makes it useful for micropower circuitry. This voltage reference can be used to make portable meters, regulators, or general-purpose analog circuitry with battery life approaching shelf life. Further, the wide operating current allows it to replace older references with a tighter tolerance part.

The LM185 is rated for operation over a −55°C to 125°C temperature range, while the LM285 is rated −40°C to 85°C and the LM385 0°C to 70°C. The LM185 is available in a hermetic TO package and an LCCC package, while the LM285/LM385 is available in a low-cost TO-92 package, as well as SOIC.

LM385M Features

Adjustable from 1.24V to 5.30V

Operating current of 10μA to 20mA

1% and 2% initial tolerance

1Ω dynamic impedance

Low-temperature coefficient

LM385M Application

Infrared detection alarm

The alarm can detect the infrared rays emitted by the human body. When a person enters the monitoring area of the alarm, it can sound the alarm. It is suitable for anti-theft alarms on more important occasions such as homes, offices, warehouses, and laboratories.

LM385M CAD Models

Symbol

 

Footprint

3D Model

Specifications

Texas Instruments LM385M technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM385M.

LM385M Tech Specifications

Texas Instruments LM385M technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM385M.

Product Attribute Attribute Value
Lifecycle StatusNRND (Last Updated: 4 days ago)
MountSurface Mount
Mounting TypeSurface Mount
Package / Case8-SOIC (0.154, 3.90mm Width)
Number of Pins8Pins
Operating Temperature0°C~70°C TA
PackagingTube
Tolerance±2%
JESD-609 Codee0
Part StatusNot For New Designs
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations8Terminations
ECCN CodeEAR99
Temperature Coefficient150ppm/°C
Terminal FinishTin/Lead (Sn/Pb)
Product Attribute Attribute Value
Terminal PositionDUAL
Terminal FormGULL WING
Peak Reflow Temperature (Cel)235
Number of Functions1Function
Current Rating10A
Base Part NumberLM385
Pin Count8
Number of Outputs1Output
Output Voltage5.3V
Output TypeAdjustable
Max Output Current20mA
Number of Channels1Channel
Trim/Adjustable OutputYES
Analog IC - Other TypeTWO TERMINAL VOLTAGE REFERENCE
Nominal Supply Current10mA
Product Attribute Attribute Value
Max Output Voltage5.3V
Reference Voltage5.3V
Reference TypeShunt
Min Output Voltage1.24V
Current - Cathode55μA
Noise - 10Hz to 10kHz50μVrms
Height1.75mm
Length4.9mm
Width3.91mm
Thickness1.58mm
REACH SVHCNo SVHC
Radiation HardeningNo
RoHS StatusNon-RoHS Compliant
Lead FreeContains Lead
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LM385M Block Diagram

LM385M Typical Application

LM385M Schematic Diagram

Datasheet PDF

Download datasheets and manufacturer documentation for Texas Instruments LM385M.

LM385M Documents

Download datasheets and manufacturer documentation for LM385M

PCN Assembly/Origin
Mult Devices 21/Aug/2017

Frequently Asked Questions

1.Which is better lm285 or lm385 band gapreference?
The tolerance. Since the LM185 band-gapreference uses LM185 is available in a hermetic TO package and a only transistors and resistors, low noise and good LCCC package, while the LM285/LM385 are long-termstability result. available in a low-cost TO-92 package, as well as SOIC.
2.What ' s The difference between the lm185 and lm285?
Operating from 1.24 to 5.3V and over a 10μA to 20mA current range, they feature exceptionally low The LM185 is rated for operation over a −55°C to dynamic impedance and good temperature stability. 125°C temperature range, while the LM285 is rated On-chip trimming is used to provide tight voltage −40°C to 85°C and the LM385 0°C to 70°C.
3.What is lm385 diode?
The LM385-1.2 is a two terminal band gap reference diode that has been designed for applications which require precision performance with micropower operation. This reference is not recommended for new designs. See the LT1004 reference for a direct replacement.
4.What is the C temperature of lm385?
The LM285/LM385 series are packaged in a low cost TO-226AA plastic case and are available in two voltage versions of 1.235 and 2.500 V as denoted by the device suffix (see Ordering Information table). The LM285 is specified over a -40 C to +85 C temperature range while the LM385 is rated from 0 C to +70 C.
5.hat is the operating current range for lm385?
Operating Current Range references operate over a 10-μA to 20-mA current – LM285-1.2: 10 μA to 20 mA range and feature exceptionally low dynamic – LM385-1.2: 15 μA to 20 mA impedance and good temperature stability. On-chip – LM385B-1.2: 15 μA to 20 mA trimming provides tight voltage tolerance.
FAQ
1.Which is better lm285 or lm385 band gapreference?
The tolerance. Since the LM185 band-gapreference uses LM185 is available in a hermetic TO package and a only transistors and resistors, low noise and good LCCC package, while the LM285/LM385 are long-termstability result. available in a low-cost TO-92 package, as well as SOIC.
2.What ' s The difference between the lm185 and lm285?
Operating from 1.24 to 5.3V and over a 10μA to 20mA current range, they feature exceptionally low The LM185 is rated for operation over a −55°C to dynamic impedance and good temperature stability. 125°C temperature range, while the LM285 is rated On-chip trimming is used to provide tight voltage −40°C to 85°C and the LM385 0°C to 70°C.
3.What is lm385 diode?
The LM385-1.2 is a two terminal band gap reference diode that has been designed for applications which require precision performance with micropower operation. This reference is not recommended for new designs. See the LT1004 reference for a direct replacement.
4.What is the C temperature of lm385?
The LM285/LM385 series are packaged in a low cost TO-226AA plastic case and are available in two voltage versions of 1.235 and 2.500 V as denoted by the device suffix (see Ordering Information table). The LM285 is specified over a -40 C to +85 C temperature range while the LM385 is rated from 0 C to +70 C.
5.hat is the operating current range for lm385?
Operating Current Range references operate over a 10-μA to 20-mA current – LM285-1.2: 10 μA to 20 mA range and feature exceptionally low dynamic – LM385-1.2: 15 μA to 20 mA impedance and good temperature stability. On-chip – LM385B-1.2: 15 μA to 20 mA trimming provides tight voltage tolerance.

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