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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. PRODUCT PREVIEW Information. Product in design phase of

development. Subject to change or discontinuance without notice.

LPV811, LPV812

SNOSD33 – AUGUST 2016

LPV811/LPV812 Precision 425 nA Nanopower Operational Amplifiers

1

1 Features

1

•

Nanopower Supply Current: 425 nA/channel

•

Offset Voltage: 300 µV (max)

•

Good TcVos: 1.5 µV/°C

•

Gain-Bandwidth: 8 kHz

•

Unity-Gain Stable

•

Low Input Bias Current : 100 fA

•

Wide Supply Range: 1.6 V to 5.5 V

•

Rail-to-Rail Output

•

No Output Reversals

•

EMI Protection

•

Temperature Range: –40°C to 125°C

•

Industry Standard Packages:

–

Single in 5-pin SOT-23

–

Dual in 8-pin VSSOP

2 Applications

•

Gas Detectors such as CO and O2

•

Current Sensing

•

Motion Detectors using PIR sensors

•

Portable Medical Equipment

•

Thermostats

•

Remote Sensors, IoT

•

Active RFID Readers and Tags

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

3 Description

The

LPV811/LPV812

is

an

ultra-low-power

operational amplifier family for “Always ON” sensing

applications in wireless and wired equipment. With 8

kHz of bandwidth from 425 nA of quiescent current

and

less

than

300µV

of

input

offset,

the

LPV811/LPV812

amplifiers

provide

the

required

precision while minimizing power consumption in

equipment such as gas detectors and portable

electronic devices where operational battery-life is

critical.

In

addition

to

being

ultra-low-power,

the

LPV811/LPV812 amplifiers have CMOS input stages

with fempto-amp bias current which reduces errors

commonly introduced in transimpedance amplifier

(TIA)

configurations

with

megaohm

feedback

resistors and high source impedance applications.

The

LPV811/LPV812

amplifiers

also

feature

a

negative-rail sensing input stage and a rail-to-rail

output stage that swings within millivolts of the rails,

maintaining the widest dynamic range possible.

Likewise,

EMI

protection

is

designed

into

the

LPV811/LPV812 in order to reduce system sensitivity

to unwanted RF signals from mobile phones, WiFi,

radio transmitters, and tag readers.

The LPV811/LPV812 amplifiers operate with a single

supply voltage as low as 1.6V, ensuring continuous

performance in low battery situations over the

extended temperature range of -40ºC to 125ºC. The

single and dual channel versions are available in

industry standard 5-pin SOT-23 and 8-pin VSSOP

packages respectively.

PART

NUMBER

PACKAGE

BODY SIZE

LPV811

SOT-23 (5)

2.90 mm x 1.60 mm

LPV812

VSSOP (8)

3.00 mm × 3.00 mm

Nanopower Oxygen Sensor

Nanopower CO Sensor