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LM611 Fiches technique(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce LM611
Description  Operational Amplifier and Adjustable Reference
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LM611 Fiches technique(HTML) 1 Page - National Semiconductor (TI)

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Operational Amplifier and Adjustable Reference
General Description
The LM611 consists of a single-supply op-amp and a pro-
grammable voltage reference in one space saving 8-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 de-
signed to lower cost and board space requirements in trans-
ducer, test, measurement and data acquisition systems.
Combining a stable voltage reference with a wide output
swing op-amp makes the LM611 ideal for single supply
transducers, signal conditioning and bridge driving where
large common-mode signals are common. The voltage refer-
ence consists of a reliable band-gap design that maintains
low dynamic output impedance (1
Ω 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
As a member of National’s Super-Blockfamily, the LM611
is a space-saving monolithic alternative to a multi-chip solu-
tion, offering a high level of integration without sacrificing
n Low operating current:
300 µA (op amp)
n Wide supply voltage range:
4V to 36V
n Wide common-mode range:
to (V+−1.8V)
n Wide differential input voltage:
n Available in low cost 8-pin DIP
n Available in plastic package rated for Military
Temperature Range Operation
n Adjustable output voltage:
1.2V to 6.3V
n Tight initial tolerance available:
n Wide operating current range:
17 µA to 20 mA
n Reference floats above ground
n Tolerant of load capacitance
n Transducer bridge driver
n Process and Mass Flow Control systems
n Power supply voltage monitor
n Buffered voltage references for A/D’s
Connection Diagrams
Super-Blockis a trademark of National Semiconductor Corporation.
May 1998
© 1999 National Semiconductor Corporation

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