+

±

Load

+

-

Q1

2N3906

VOUT

ICHARGE

V

+

0.2

Ÿ

RSENSE

R1

2

NŸ

2

NŸ

R2

10

NŸ

R3

Copyright © 2016, Texas Instruments Incorporated

3

SENSE R

OUT

CHARGE

CHARGE

1

R

V

I

1

I

R

u

u

: u

0

4

10

0

0.2

0.4

0.6

0.8

1

1.6

SUPPLY VOLTAGE (V)

1.2

1.4

25°C

85ºC

125°C

2

6

8

12

-40°C

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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.

LPV511

SNOSAG7D – AUGUST 2005 – REVISED AUGUST 2016

LPV511 Micropower, Rail-to-Rail Input and Output Operational Amplifier

1

1 Features

1

•

Wide Supply Voltage Range: 2.7 V to 12 V

•

Slew Rate: 7.7 V/ms

•

Supply Current: 880 nA

•

Output Short-Circuit Current: 1.35 mA

•

Rail-to-Rail Input

•

Rail-to-Rail Output: 100 mV from Rails

•

Bandwidth (CL = 50 pF, RL = 1 MΩ): 27 kHz

•

Unity Gain Stable

2 Applications

•

Battery Powered Systems

•

Security Systems

•

Micropower Thermostats

•

Solar Powered Systems

•

Portable Instrumentation

•

Micropower Filters

•

Remote Sensor Amplifiers

3 Description

The LPV511 is a micropower operational amplifier

that operates from a voltage supply range as wide as

2.7 V to 12 V with ensured specifications at 3 V, 5 V,

and 12 V. The ultra-low power LPV511 exhibits an

excellent speed to power ratio, drawing only 880 nA

of supply current with a bandwidth of 27 kHz. These

specifications make the LPV511 an ideal choice for

battery-powered

systems

that

require

long

life

through low supply current, such as instrumentation,

sensor conditioning and battery current monitoring.

The LPV511 has an input range that includes both

supply rails for ground and high-side battery sensing

applications. The LPV511 output swings within 100

mV of either rail to maximize the signal's dynamic

range in low supply applications. In addition, the

output is capable of sourcing 650 µA of current when

powered by a 12-V battery.

The LPV511 is fabricated on TI's advanced VIP50C

process.

The LPV511 is available in the space-saving SC70

package, which makes it ideal for portable electronics

with area-constrained PC boards.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LPV511

SC70 (5)

2.00 mm × 1.25 mm

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

the end of the data sheet.

Typical Supply Current

High-Side Battery Current Sensor