LM614 Quad Operational Amplifier and Adjustable Reference
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 (1鈩?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鈥檚 new Super-Block
鈩?/div>
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 碌A(chǔ)
n
Wide supply voltage range: 4V to 36V
n
Wide common-mode range: V
鈭?/div>
to (V
+
鈭?1.8V)
n
Wide differential input voltage:
鹵
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:
鹵
0.6%
n
Wide operating current range: 17 碌A(chǔ) to 20 mA
n
Tolerant of load capacitance
Applications
n
n
n
n
Transducer bridge driver and signal processing
Process and mass flow control systems
Power supply voltage monitor
Buffered voltage references for A/D鈥檚
Connection Diagram
DS009326-1
Ordering Information
Reference
Tolerance & V
OS
Temperature Range
Military
鈭?5藲C
鈮?/div>
T
A
鈮?/div>
+125藲C
LM614AMN
LM614AMJ/883
(Note 13)
LM614MN
鈥?/div>
Industrial
鈭?0藲C
鈮?/div>
T
A
鈮?/div>
+85藲C
LM614AIN
鈥?/div>
LM614BIN
LM614WM
Commercial
0藲C
鈮?/div>
T
A
鈮?/div>
+70藲C
鈥?/div>
鈥?/div>
LM614CN
LM614CWM
16-pin
Molded DIP
16-pin
Ceramic DIP
16-pin
Molded DIP
16-pin Wide
Surface Mount
Super-Block
鈩?/div>
is a trademark of National Semiconductor Corporation.
Package
NSC
Drawing
N16E
J16A
N16E
M16B
鹵
0.6%
@
80 ppm/藲C max
V
OS
鈮?/div>
3.5 mV max
鹵
2.0%
@
150 ppm/藲C max
V
OS
鈮?/div>
5.0 mV
漏 1999 National Semiconductor Corporation
DS009326
www.national.com
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