LM385-2.5DM Ver la hoja de datos (PDF) - Microsemi Corporation
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LM385-2.5DM Datasheet PDF : 7 Pages
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THE INFINITE POWER OF INNOVATION
LM385 / 385B
1.2 & 2.5V MICROPOWER VOLTAGE REFERENCE
PRODUCTION DATA SHEET
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 15µA up to 20mA for
the LX385/385B-1.2, and 20µA 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
current. 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 provides 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-to-
pin replacement for the LM385/385B family of
voltage references.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY 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 3.0% Initial
Accuracy (LM385-2.5)
Guaranteed 20µA Operating
Current
Low Temperature coefficient
Operating Current of 20µA to
20mA
Very Low Dynamic Impedance:
10Ω
APPLICATIONS
Portable Meter References
Portable Test Instruments
Battery Operated Systems
Current Loop Instrumentation
1.2V REFERENCE
5V
PRODUCT HIGHLIGHT
MICROPOWER REFERENCED FROM 9V BATTERY
9V
38K
1.2V
200K
2.5V
LM385-1.2V
LM385-2.5V
TA (°C)
0 to 70
Reference
Voltage
1.2V
2.5V
PACKAGE ORDER INFO
Initial
Tolerance
DM
Plastic SOIC
8-Pin
RoHS Compliant / Pb-free
Transition DC: 0440
LP
Plastic TO-92
3-Pin
RoHS Compliant / Pb-free
Transition DC: 0509
±30mV
LM385DM-1.2
LM385LP-1.2
±12mV
LM385BDM-1.2
LM385BLP-1.2
±75mV
LM385DM-2.5
LM385LP-2.5
±38mV
LM385BDM-2.5
LM385BLP-2.5
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX385BDM-TR)
Copyright © 1996
Rev. 1.2a,2005-03-08
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
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