LMV797MMX datasheet(1/19 Pages) NSC

Part #	LMV797MMX

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

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Manufacturer	NSC [National Semiconductor (TI)]

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LMV796/LMV797

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

Amplifiers

General Description

The LMV796 (Single) and the LMV797 (Dual) low noise,

CMOS input operational amplifiers offer a low input voltage

noise density of 5.8 nV/

while consuming only 1.15 mA

(LMV796) of quiescent current. The LMV796 and LMV797

are unity gain stable op amps and have gain bandwidth of 17

MHz. The LMV796/ LMV797 have a supply voltage range of

1.8V to 5.5V and can operate from a single supply. The

LMV796/LMV797 each feature a rail-to-rail output stage ca-

pable of driving a 600

Ω load and sourcing as much as 60 mA

of current.

The LMV796 family 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 femtoAm-

peres, and an input common mode voltage range, which

includes ground, make the LMV796 and the LMV797 ideal

for low power sensor applications.

The LMV796/LMV797 are manufactured using National’s

advanced VIP50 process and are offered in a 5-pin SOT23

and an 8-pin MSOP package respectively.

Features

(Typical 5V supply, unless otherwise noted)

n

Input referred voltage noise

5.8 nV/

n

Input bias current

100 fA

n

Unity gain bandwidth

17 MHz

n

Supply current per channel

— LMV796

1.15 mA

— LMV797

1.30 mA

n

Rail-to-rail output swing

— @ 10 k

Ω load

25 mV from rail

— @ 2k

Ω load

35 mV from rail

n

Guaranteed 2.5V and 5.0V performance

n

Total harmonic distortion

0.01% @1 kHz, 600

Ω

n

Temperature range

−40˚C to 125˚C

Applications

n

Photodiode amplifiers

n

Active filters and buffers

n

Low noise signal processing

n

Medical instrumentation

n

Sensor interface applications

Typical Application

20183569

Photodiode Transimpedance Amplifier

20183539

Input Referred Voltage Noise vs. Frequency

May 2006

DS201835

www.national.com

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LMV797MMX Datasheet(PDF) 1 Page - National Semiconductor (TI)

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