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PDF AMS9491BN Data sheet ( Hoja de datos )
| Número de pieza | AMS9491BN | |
| Descripción | 1.235V VOLTAGE REFERENCE | |
| Fabricantes | Advanced Monolithic Systems | |
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Hay una vista previa y un enlace de descarga de AMS9491BN (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Advanced
Monolithic
Systems
AMS9491
1.235V VOLTAGE REFERENCE
FEATURES
• ±10 mV max. initial tolerance (A grade)
• Operating Current 10µA to 20mA
• Low Voltage Reference 1.235
• Max. 0.6Ω Dynamic Impedance (A grade)
• Low Temperature Coefficient
APPLICATIONS
• Battery Powered Systems
• Instrumentation
• A/D, D/A Converters
• Temperature measurement
• Current sources
• Pagers
GENERAL DESCRIPTION
The AMS9491 is a two-terminal micropower band-gap voltage reference diode. It feature a very low dynamic impedance and
good temperature coefficient, operating over a 10µA to 20mA current range. On-chip trimming is used to provide tight
voltage tolerance. Since the AMS9491 is a band-gap reference, uses only transistors and resistors, low noise and good long-
term stability result. Careful design of the AMS9491 has made the device exceptionally 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 AMS9491 makes this reference diode useful for
micropower circuitry.
The AMS9491 can be used to make portable meters, regulators or general purpose analog circuitry with battery life
approaching shelf life. Further more, the wide operating current allows it to replace older references with a tight tolerance
part.
The AMS9491 is operating over a 0°C to 70°C temperature range and is available in TO-92 and SO-8 packages.
ORDERING INFORMATION:
TOL.
PACKAGE TYPE
TO-92
8 LEAD SOIC
±10mV AMS9491AN
±20mV AMS9491BN
AMS9491AS
AMS9491BS
OPERATING
TEMPERATURE RANGE
0 to 70° C
0 to 70° C
PIN CONNECTIONS
TO-92
Plastic Package (N)
31
8L SOIC
SO Package (S)
+ N/C N/C N/C
8765
Bottom View
1234
N/C N/C N/C -
Top View
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
1 page  
TYPICAL APPLICATIONS (Continued)
AMS9491
Precision 1µA to 1mA Current Sources
AMS9491
C1
150pF
R1
100k
IOUT*
-1.5V TO -27V
2- 7
LM312
3+ 4
6
R2
-30V
*IOUT =1.23V/R2
AMS9491
30V
1.5V TO 27V
R1
100k
IOUT*
2- 7
LM312
3+ 4
C1
150pF
6
R2
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet AMS9491BN.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AMS9491B | 1.235V VOLTAGE REFERENCE | Advanced Monolithic Systems |
| AMS9491BN | 1.235V VOLTAGE REFERENCE | Advanced Monolithic Systems |
| AMS9491BS | 1.235V VOLTAGE REFERENCE | Advanced Monolithic Systems |
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