DataSheetWiki


LM329BZ fiches techniques PDF

National Semiconductor - Precision Reference

Numéro de référence LM329BZ
Description Precision Reference
Fabricant National Semiconductor 
Logo National Semiconductor 





1 Page

No Preview Available !





LM329BZ fiche technique
March 2000
LM129/LM329
Precision Reference
General Description
The LM129 and LM329 family are precision multi-current
temperature-compensated 6.9V zener references with dy-
namic impedances a factor of 10 to 100 less than discrete di-
odes. Constructed in a single silicon chip, the LM129 uses
active circuitry to buffer the internal zener allowing the de-
vice to operate over a 0.5 mA to 15 mA range with virtually
no change in performance. The LM129 and LM329 are avail-
able with selected temperature coefficients of 0.001, 0.002,
0.005 and 0.01%/˚C. These references also have excellent
long term stability and low noise.
A new subsurface breakdown zener used in the LM129 gives
lower noise and better long-term stability than conventional
IC zeners. Further the zener and temperature compensating
transistor are made by a planar process so they are immune
to problems that plague ordinary zeners. For example, there
is virtually no voltage shift in zener voltage due to tempera-
ture cycling and the device is insensitive to stress on the
leads.
The LM129 can be used in place of conventional zeners with
improved performance. The low dynamic impedance simpli-
fies biasing and the wide operating current allows the re-
placement of many zener types.
The LM129 is packaged in a 2-lead TO-46 package and is
rated for operation over a −55˚C to +125˚C temperature
range. The LM329 for operation over 0˚C to 70˚C is available
in both a hermetic TO-46 package and a TO-92 epoxy pack-
age.
Features
n 0.6 mA to 15 mA operating current
n 0.6dynamic impedance at any current
n Available with temperature coefficients of 0.001%/˚C
n 7µV wideband noise
n 5% initial tolerance
n 0.002% long term stability
n Low cost
n Subsurface zener
Connection Diagrams
Metal Can Package (T0–46)
Plastic Package (TO-92)
DS005714-6
Pin 2 is electrically connected to case
Bottom View
Order Number LM129AH, LM129AH/883, LM129BH,
LM129BH/883, LM129CH, LM329AH, LM329BH,
LM329CH or LM329DH
See NS Package H02A
DS005714-4
Bottom View
Order Number LM329BZ,
LM329CZ or LM329DZ
See NS Package Z03A
© 2000 National Semiconductor Corporation DS005714
www.national.com

PagesPages 10
Télécharger [ LM329BZ ]


Fiche technique recommandé

No Description détaillée Fabricant
LM329BH Precision Reference National Semiconductor
National Semiconductor
LM329BH 6.9V Precision Voltage Reference Linear Technology
Linear Technology
LM329BZ Precision Reference National Semiconductor
National Semiconductor
LM329BZ 6.9V Precision Voltage Reference Linear Technology
Linear Technology

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche