RF Signal

IN

OUT

U1

GSM PA

VPC

Directional Coupler

C2

U2

Input

Coupled

Load

Output

C4

BIAS

VCC

GSM

ANTENNA

R5

RLOAD

R2

R3

C5

+

±

OUT

C3

R1

VCC

U3

V-

R4

SD

Shut Down

Ramp

Up/Down

V+

Schottky Diode

Detector

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

LMV712-N, LMV712-N-Q1

SNOS534J – FEBRUARY 2001 – REVISED NOVEMBER 2016

LMV712-N, LMV712-N-Q1 Low Power, Low Noise, High Output, RRIO Dual Operational

Amplifier With Independent Shutdown

1

1 Features

1

•

Available In Automotive AEC-Q100 Grade 1

Version (LMV712-N Only)

•

5-MHz GBP

•

Slew Rate: 5 V/µs

•

Low Noise: 20 nV/

√Hz

•

Supply Current: 1.22 mA/Channel

•

VOS< 3 mV Maximum

•

Ensured 2.7-V and 5-V Specifications

•

Temperature Range: –40°C to 125°C

•

Rail-to-Rail Inputs and Outputs

•

Unity Gain Stable

•

Small Package: 10-Pin DSBGA, 10-Pin WSON,

and 10-Pin VSSOP

•

1.5-µA Shutdown ICC

•

2.2-µs Turnon

2 Applications

•

Power Amplifier Control Loops

•

Cellular Phones

•

Portable Equipment

•

Wireless LAN

•

Radio Systems

•

Cordless Phones

3 Description

The

LMV712-N

devices

are

high-performance

BiCMOS

operational

amplifiers

intended

for

applications requiring rail-to-rail inputs combined with

speed and low noise. They offer a bandwidth of

5 MHz and a slew rate of 5 V/µs, and can handle

capacitive loads of up to 200 pF without oscillation.

The LMV712-N is ensured to operate from 2.7 V to

5.5 V and offers two independent shutdown pins. This

feature allows disabling of each device separately

and reduces the supply current to less than 1 µA

typical. The output voltage rapidly ramps up smoothly

with no glitch as the amplifier comes out of the

shutdown mode.

The LMV712-N with the shutdown feature is offered

in space-saving 10-pin DSBGA and 10-pin WSON

packages. It is also offered in 10-pin VSSOP

package. These packages are designed to meet the

demands of small size, low power, and low cost

required by cellular phones and similar battery-

operated portable electronics.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LMV712-N

DSBGA (10)

1.75 mm × 2.25 mm

WSON (10)

3.00 mm × 3.00 mm

LMV712-N,

LMV712-N-Q1

VSSOP (10)

3.00 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Power Amplifier Control Loop