LMP7711/LMP7712

Single and Dual Precision, 17 MHz, Low Noise, CMOS

Input Amplifiers

General Description

The LMP7711/LMP7712 are single and dual low noise, low

offset, CMOS input, rail-to-rail output precision amplifiers

with a high gain bandwidth product and an enable pin. The

family and are ideal for a variety of instrumentation applica-

tions.

Utilizing a CMOS input stage, the LMP7711/LMP7712

achieve an input bias current of 100 fA, an input referred

voltage noise of 5.8 nV/

, and an input offset voltage of

LMP7712 superior choices for precision applications.

Consuming only 1.15 mA of supply current, the LMP7711

offers a high gain bandwidth product of 17 MHz, enabling

accurate amplification at high closed loop gains.

The LMP7711/LMP7712 have a supply voltage range of

1.8V to 5.5V, which makes these ideal choices for portable

low power applications with low supply voltage require-

ments. In order to reduce the already low power consump-

tion the LMP7711/LMP7712 have an enable function. Once

in shutdown, the LMP7711/LMP7712 draw only 140 nA of

supply current.

The LMP7711/LMP7712 are built with National’s advanced

VIP50 process technology. The LMP7711 is offered in a

6-pin TSOT23 package and the LMP7712 is offered in a

10-pin MSOP.

Features

Unless otherwise noted, typical values at V

n

Input offset voltage

n

Input bias current

100 fA

n

Input voltage noise

5.8 nV/

n

Gain bandwidth product

17 MHz

n

Supply current (LMP7711)

1.15 mA

n

Supply current (LMP7712)

1.30 mA

n

Supply voltage range

1.8V to 5.5V

n

0.001%

n

Operating temperature range

n

Rail-to-rail output swing

n

Space saving TSOT23 package (LMP7711)

n

MSOP-10 package (LMP7712)

Applications

n

Active filters and buffers

n

Sensor interface applications

n

Transimpedance amplifiers

Typical Performance

Offset Voltage Distribution

Input Referred Voltage Noise

20150322

20150339

November 2005

© 2005 National Semiconductor Corporation

DS201503

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