LMV791 datasheet(1/16 Pages) NSC

Part #	LMV791

Description	17 MHz, Low Noise, CMOS Input, 1.8V Operational Amplifier

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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LMV791

17 MHz, Low Noise, CMOS Input, 1.8V Operational

Amplifier

General Description

The LMV791 low noise, CMOS input operational amplifier

offers a low input voltage noise density of 5.8 nV/

while

consuming only 1.15 mA of quiescent current. The LMV791

is a unity gain stable op amp and has a gain bandwidth of 17

MHz. The LMV791 has a supply voltage range of 1.8V to

5.5V and can operate from a single supply. The LMV791

features a rail-to-rail output stage capable of driving a 600

Ω

load and sourcing as much as 60 mA of current.

The LMV791 provides optimal performance in low voltage

and low noise systems. A CMOS input stage, with typical

input bias currents in the range of a few femtoAmperes, and

an input common mode voltage range which includes

ground make the LMV791 ideal for low power sensor appli-

cations. The LMV791 has a built-in enable feature which can

be used to optimize power dissipation in low power applica-

tions.

The LMV791 is manufactured using National’s advanced

VIP50 process and is available in a 6-pin TSOT23 package.

Features

(Typical 5V supply, unless otherwise noted)

n

Input referred voltage noise

5.8 nV/

n

Input bias current

0.1 pA

n

Unity gain bandwidth

17 MHz

n

Supply current

1.15 mA

n

Guaranteed 2.5V and 5.0V performance

n

Rail-to-rail output swing

— @ 10 k

Ω load

25 mV from rail

— @ 2k

Ω load

35 mV from rail

n

Total harmonic distortion

0.01% @1 kHz, 600

Ω

n

Temperature range

−40oCto125oC

Applications

n

Photodiode Amplifiers

n

Active filters and buffers

n

Low noise signal processing

n

Medical Instrumentation

n

Sensor interface applications

Typical Application

20116869

Photodiode Transimpedance Amplifier

20116839

Input Referred Voltage Noise vs. Frequency

September 2005

DS201168

www.national.com

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LMV791 Datasheet(PDF) 1 Page - National Semiconductor (TI)

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