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Motorola Inc - MICROPOWER VOLTAGE REFERENCE DIODES

Numéro de référence LM285D-2.5
Description MICROPOWER VOLTAGE REFERENCE DIODES
Fabricant Motorola Inc 
Logo Motorola  Inc 





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LM285D-2.5 fiche technique
Order this document by LM285/D
Micropower Voltage
Reference Diodes
The LM285/LM385 series are micropower two–terminal bandgap voltage
regulator diodes. Designed to operate over a wide current range of 10 µA to
20 mA, these devices feature exceptionally low dynamic impedance, low
noise and stable operation over time and temperature. Tight voltage
tolerances are achieved by on–chip trimming. The large dynamic operating
range enables these devices to be used in applications with widely varying
supplies with excellent regulation. Extremely low operating current make
these devices ideal for micropower circuitry like portable instrumentation,
regulators and other analog circuitry where extended battery life is required.
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.
The LM385 is also available in a surface mount plastic package in
voltages of 1.235 and 2.500 V.
Operating Current from 10 µA to 20 mA
1.0%, 1.5%, 2.0% and 3.0% Initial Tolerance Grades
Low Temperature Coefficient
1.0 Dynamic Impedance
Surface Mount Package Available
LM285
LM385, B
MICROPOWER VOLTAGE
REFERENCE DIODES
SEMICONDUCTOR
TECHNICAL DATA
Z SUFFIX
PLASTIC PACKAGE
CASE 29
(Bottom View)
321
N.C.
Cathode
Anode
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8) N.C. 1
N.C. 2
N.C. 3
Anode 4
8 Cathode
7 N.C.
6 N.C.
5 N.C.
Representative Schematic Diagram
Cathode
360 k
Open
for 1.235 V
10 k
600 k 8.45 k
Open
for 2.5 V
74.3 k
425 k
600 k
600 k
500 100 k
Anode
MOTOROLA ANALOG IC DEVICE DATA
Standard Application
1.5 V
Battery
+
3.3 k
1.235 V
LM385–1.2
ORDERING INFORMATION
Device
Reverse
Operating Break–
Temperature down
Range Voltage Tolerance
LM285D–1.2
LM285Z–1.2
LM285D–2.5
LM285Z–2.5
1.235 V
TA = – 40° to
+85°C
2.500 V
LM385BD–1.2
LM385BZ–1.2
1.235 V
LM385D–1.2
LM385Z–1.2
LM385BD–2.5
LM385BZ–2.5
TA = 0° to
+70°C
1.235 V
2.500 V
± 1.0%
± 1.5%
± 1.0%
± 2.0%
± 1.5%
LM385D–2.5
LM385Z–2.5
2.500 V ± 3.0%
© Motorola, Inc. 1996
Rev 2
1

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