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MFG:1.2V/2.5V  Package Cooled:SOP3/SOP8  D/C:07+  

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Part Number: LM385

 

MFG: 1.2V/2.5V

Package Cooled: SOP3/SOP8

D/C: 07+

Description: The LM385/385B Micropower Voltage References are two terminal bandgap reference diodes designed and ...


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LM385 General Description


The LM385/385B Micropower Voltage References are two terminal bandgap reference diodes designed and optimized for accurate low power operation in portable and other power sensitive systems. Operating currents are guaranteed from as low as 15A up to 20mA for the LM385/385B-1.2, and 20A up to 20mA for the LM385/385B-2.5, giving designers a great deal of flexibility in optimizing power consumption, noise and ultimate application performance. As an added feature, the references output impedance is extraordinarily low over the entire operating range of quiescent currents. This enables an extremely wide dynamic load range with little effect on the overall reference accuracy.


The LM385 family is available in fixed 1.2V and 2.5V reference values.  Process and circuit design optimization provide for high accuracy with initial tolerance values of 1% for the LM385B-1.2, 2% for the LM385-1.2, 1.5% for the LM385B-2.5, and 3% for the LM385-2.5.Complementing their initial accuracy, the bandgap reference is temperature compensated to deliver 20ppm performance over the 0° to 70°C operating temperature range.


The LM385 family from Linfinity is a pin-for-pin replacement for the LM385/385B family of voltage references.

LM385 Maximum Ratings

Reverse Breakdown Current .................................................................................... 30mA
Forward Current ....................................................................................................... 10mA
Operating Temperature Range
LM385........................................................................................................... 0°C to 70°C
Storage Temperature Range ................................................................... -65°C to 150°C
Lead Temperature (soldering, 10 seconds) ..............................................................300°C

LM385 Features

GUARANTEED 1% INITIAL ACCURACY(LM385B-1.2)
GUARANTEED 2.5% INITIAL ACCURACY(LM385-1.2)
GUARANTEED 1.5% INITIAL ACCURACY(LM385B-2.5)
GUARANTEED 3% INITIAL ACCURACY(LM385-2.5)
GUARANTEED 20A OPERATING CURRENT
LOW TEMPERATURE COEFFICIENT
OPERATING  CURRENT OF 20A TO 20mA
VERY LOW DYNAMIC IMPEDANCE . . . 1

LM385 Typical Application

ORTABLE METER REFERENCES
PORTABLE TEST INSTRUMENTS
BATTERY OPERATED SYSTEMS
CURRENT LOOP INSTRUMENTATION

LM385 Connection Diagram

LM385 Connection Diagram

LM385 datasheet

LM385
PDF/DataSheet Download

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