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PDF LM614 Data sheet ( Hoja de datos )
| Número de pieza | LM614 | |
| Descripción | Quad Operational Amplifier and Adjustable Reference | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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May 1998
LM614
Quad Operational Amplifier and Adjustable Reference
General Description
The LM614 consists of four op-amps and a programmable
voltage reference in a 16-pin package. The op-amp
out-performs most single-supply op-amps by providing
higher speed and bandwidth along with low supply current.
This device was specifically designed to lower cost and
board space requirements in transducer, test, measurement
and data acquisition systems.
Combining a stable voltage reference with four wide output
swing op-amps makes the LM614 ideal for single supply
transducers, signal conditioning and bridge driving where
large common-mode-signals are common. The voltage ref-
erence consists of a reliable band-gap design that maintains
low dynamic output impedance (1Ω typical), excellent initial
tolerance (0.6%), and the ability to be programmed from
1.2V to 6.3V via two external resistors. The voltage refer-
ence is very stable even when driving large capacitive loads,
as are commonly encountered in CMOS data acquisition
systems.
As a member of National’s new Super-Block™ family, the
LM614 is a space-saving monolithic alternative to a multichip
solution, offering a high level of integration without sacrificing
performance.
Features
Op Amp
n Low operating current: 300 µA
n Wide supply voltage range: 4V to 36V
n Wide common-mode range: V− to (V+− 1.8V)
n Wide differential input voltage: ±36V
n Available in plastic package rated for Military
Temperature Range Operation
Reference
n Adjustable output voltage: 1.2V to 6.3V
n Tight initial tolerance available: ±0.6%
n Wide operating current range: 17 µA to 20 mA
n Tolerant of load capacitance
Applications
n Transducer bridge driver and signal processing
n Process and mass flow control systems
n Power supply voltage monitor
n Buffered voltage references for A/D’s
Connection Diagram
Ordering Information
DS009326-1
Reference
Tolerance & VOS
±0.6%@
80 ppm/˚C max
VOS ≤ 3.5 mV max
±2.0%@
150 ppm/˚C max
VOS ≤ 5.0 mV
Military
−55˚C ≤ TA ≤ +125˚C
LM614AMN
Temperature Range
Industrial
−40˚C ≤ TA ≤ +85˚C
LM614AIN
LM614AMJ/883
(Note 13)
LM614MN
—
LM614BIN
— LM614WM
Super-Block™ is a trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS009326
Commercial
0˚C ≤ TA ≤ +70˚C
—
—
LM614CN
LM614CWM
Package
NSC
Drawing
16-pin
Molded DIP
16-pin
Ceramic DIP
16-pin
Molded DIP
16-pin Wide
Surface Mount
N16E
J16A
N16E
M16B
www.national.com
1 page  
Simplified Schematic Diagrams (Continued)
Reference / Bias
DS009326-3
Typical Performance Characteristics (Reference) TJ = 25˚C, FEEDBACK pin shorted to V− =
0V, unless otherwise noted
Reference Voltage
vs Temperature
on 5 Representative Units
Reference Voltage Drift
Accelerated Reference
Voltage Drift vs Time
DS009326-47
Reference Voltage vs
Current and Temperature
DS009326-48
Reference Voltage vs
Current and Temperature
DS009326-49
Reference Voltage vs
Reference Current
DS009326-50
DS009326-51
5
DS009326-52
www.national.com
5 Page 
Typical Performance Distributions (Continued)
Average IOS Drift
Industrial Temperature Range
Average IOS Drift
Commercial Temperature Range
Voltage Reference Broad-Band
Noise Distribution
DS009326-33
Op Amp Voltage
Noise Distribution
DS009326-34
Op Amp Current
Noise Distribution
DS009326-35
DS009326-36
DS009326-37
11 www.national.com
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LM614.PDF ] | |
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