LMV651

12 MHz, Low Voltage, Low Power Amplifier

General Description

National’s LMV651 is a high performance, low power op amp

IC implemented in National’s advanced VIP50 process. The

unity gain stable LMV651 features 12 MHz of bandwidth

while consuming only 110 uA of current, an exceptional

bandwidth to power ratio in this op amp class, and maintains

stability for capacitive loads as large as 500 pF.

The LMV651 provides superior performance and economy in

terms of power and space usage. The LMV651 has a maxi-

mum input offset voltage of 1 mV, a rail to rail output stage

and an input common-mode voltage range that includes

ground. The LMV651 provides a PSRR of 95 dB, a CMRR of

100 dB and a total harmonic distortion (THD) of 0.003% at

1 kHz frequency and 600

Ω load

The LMV651 has an operating supply voltage range from

2.7V to 5.5V. The LMV651 can operate over a wide tempera-

ture range (-40˚C to +125˚C) making the op amp ideal for

automotive applications, sensor applications and portable

equipment applications. The LMV651 is available in the ultra

tiny SC70-5 package, which is about half the size of the

SOT23-5.

Features

(Typical 5V supply, unless otherwise noted)

n

Guaranteed 3.0V and 5.0V performance

n

High unity gain bandwidth

12 MHz

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Low power supply current

110 µA

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Max input offset voltage

1 mV

n

Capacitive load drive capability

500 pF

n

CMRR

100 dB

n

PSRR

95 dB

n

Input referred voltage noise

17nV/

n

Output swing with 2 k

Ω load

50 mV from rail

n

Total harmonic distortion

Ω

n

Temperature range

−40˚C to 125˚C

Applications

n

Portable equipment

n

Automotive

n

Battery powered systems

n

Sensors and Instrumentation

20123806

Open Loop Gain and phase vs. Frequency

20123805

THD+N vs. Frequency

PRELIMINARY

September 2005

© 2005 National Semiconductor Corporation

DS201238

www.national.com