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PDF LF412 Data sheet ( Hoja de datos )
| Número de pieza | LF412 | |
| Descripción | Low Offset/ Low Drift Dual JFET Input Operational Amplifier | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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August 2000
LF412
Low Offset, Low Drift Dual JFET Input Operational
Amplifier
General Description
These devices are low cost, high speed, JFET input opera-
tional amplifiers with very low input offset voltage and guar-
anteed input offset voltage drift. They require low supply
current yet maintain a large gain bandwidth product and fast
slew rate. In addition, well matched high voltage JFET input
devices provide very low input bias and offset currents. The
LF412 dual is pin compatible with the LM1558, allowing
designers to immediately upgrade the overall performance of
existing designs.
These amplifiers may be used in applications such as high
speed integrators, fast D/A converters, sample and hold
circuits and many other circuits requiring low input offset
voltage and drift, low input bias current, high input imped-
ance, high slew rate and wide bandwidth.
Features
n Internally trimmed offset voltage: 1 mV (max)
n Input offset voltage drift: 10 µV/˚C (max)
n Low input bias current: 50 pA
n Low input noise current:
n Wide gain bandwidth: 3 MHz (min)
n High slew rate: 10V/µs (min)
n Low supply current: 1.8 mA/Amplifier
n High input impedance: 1012Ω
n Low total harmonic distortion ≤0.02%
n Low 1/f noise corner: 50 Hz
n Fast settling time to 0.01%: 2 µs
Typical Connection
Connection Diagrams
Metal Can Package
Ordering Information
LF412XYZ
X indicates electrical grade
Y indicates temperature range
“M” for military
“C” for commercial
Z indicates package type
“H” or “N”
00565641
BI-FET II™ is a trademark of National Semiconductor Corporation.
© 2004 National Semiconductor Corporation DS005656
00565642
Order Number LF412MH, LF412CH
or LF412MH/883 (Note 1)
See NS Package Number H08A
Dual-In-Line Package
00565644
Order Number LF412ACN, LF412CN
or LF412MJ/883 (Note 1)
See NS Package Number J08A or N08E
www.national.com
1 page  
Typical Performance Characteristics (Continued)
Supply Current
Positive Common-Mode
Input Voltage Limit
00565612
Negative Common-Mode
Input Voltage Limit
00565613
Positive Current Limit
Negative Current Limit
00565614
Output Voltage Swing
00565615
00565616
5
00565617
www.national.com
5 Page 
Physical Dimensions inches (millimeters)
unless otherwise noted
Metal Can Package (H)
Order Number LF412MH, LF412MH/883 or LF412CH
NS Package Number H08A
11 www.national.com
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet LF412.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
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| LF411-N | LF411-N Low Offset Low Drift JFET Input Operational Amplifier (Rev. E) | Texas Instruments |
| LF411ACH | Low Offset/ Low Drift JFET Input Operational Amplifier | National Semiconductor |
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