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PDF LM9140BYZ-10.0 Data sheet ( Hoja de datos )
| Número de pieza | LM9140BYZ-10.0 | |
| Descripción | Precision Micropower Shunt Voltage Reference | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LM9140BYZ-10.0 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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April 1998
LM9140
Precision Micropower Shunt Voltage Reference
General Description
The LM9140’s reverse breakdown voltage temperature coef-
ficients of ±25 ppm/˚C are ideal for precision applications.
The LM9140’s advanced design eliminates the need for an
external stabilizing capacitor while ensuring stability with any
capacitive load, thus making the LM9140 easy to use. Fur-
ther reducing design effort is the availability of several fixed
reverse breakdown voltages: 2.500V, 4.096V, 5.000V, and
10.000V. The minimum operating current increases from
60 µA for the LM9140-2.5 to 100 µA for the LM9140-10.0. All
versions have a maximum operating current of 15 mA.
The LM9140 utilizes fuse and zener-zap reverse breakdown
voltage trim during wafer sort to ensure that the prime parts
have an accuracy of better than ±0.5% (B grade) at 25˚C.
Bandgap reference temperature drift curvature correction
and low dynamic impedance ensure stable reverse break-
down voltage accuracy over a wide range of operating tem-
peratures and currents.
Features
n Guaranteed temperature coefficient of ±25 ppm/˚C
n Reverse breakdown voltage tolerance of ±0.5%
n Small package: TO-92
n No output capacitor required
n Tolerates capacitive loads
n Fixed reverse breakdown voltages of 2.500V, 4.096V,
5.000V, and 10.000V
Key Specifications
(LM9140-2.5)
n Temperature coefficient: ±25 ppm/˚C (max)
n Output voltage tolerance: ±0.5% (max)
n Low output noise (10 Hz to 10 kHz): 35 µVrms (typ)
n Wide operating current range: 60 µA to 15 mA
n Industrial temperature range: −40˚C to +85˚C
Applications
n Portable, Battery-Powered Equipment
n Data Acquisition Systems
n Instrumentation
n Process Control
n Energy Management
n Product Testing
n Automotive
n Precision Audio Components
Connection Diagram
TO-92
DS011393-2
Bottom View
See NS Package Number Z03A
Ordering Information
Reverse Breakdown
Voltage Tolerance at 25˚C
and Average Reverse Breakdown
Voltage Temperature Coefficient
0.5%, 25 ppm/˚C max
Z (TO-92)
LM9140BYZ-2.5,
LM9140BYZ-4.1,
LM9140BYZ-5.0,
LM9140BYZ-10.0
© 1998 National Semiconductor Corporation DS011393
www.national.com
1 page  
Typical Performance Characteristics
Temperature Drift for Different
Average Temperature Coefficient
Output Impedance vs Frequency
Output Impedance vs Frequency
DS011393-3
Reverse Characteristics and
Minimum Operating Current
DS011393-4
Noise Voltage vs Frequency
DS011393-5
DS011393-6
DS011393-7
5
www.national.com
5 Page 
Typical Applications (Continued)
DS011393-17
FIGURE 6. Programmable Current Source
DS011393-18
FIGURE 7. Precision 1 µA to 1 mA Current Sources
DS011393-19
11 www.national.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LM9140BYZ-10.0.PDF ] | |
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