0

100

200

300

400

500

600

700

800

900

1000

1.5

2

2.5

3

3.5

4

4.5

5

5.5

Supply Voltage (V)

125°C

85°C

25°C

0°C

-40°C

C001

V

OXYGEN SENSOR

100 M

+

1 M

V

+

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

LPV542

SNOSCX9 – MARCH 2015

LPV542 Dual Nanopower 1.8 V, 490nA, RRIO CMOS Operational Amplifier

1 Features

3 Description

The LPV542 is an ultra-low-power, dual operational

1

•

Wide Supply Range: 1.6 V to 5.5 V

amplifier that provides 8kHz of bandwidth from 490nA

•

Low Supply Current: 490 nA (typical/channel)

of quiescent current making it well suited for battery-

•

Good Offset Voltage: 3 mV (maximum/room)

powered applications such as health and fitness

wearables, building automation, and remote sensing

•

Good TcVos: 1µV/°C (typical)

nodes.

•

Gain-Bandwidth: 8 kHz (typical)

Each amplifier has a CMOS input stage with pico-

•

Rail-to-Rail Input and Output

amp bias currents which reduces errors commonly

•

Unity-Gain Stable

introduced

in

megaohm

feedback

resistance

•

Low Input Bias Current : 1 pA (maximum/room)

topologies such as photodiode and charge sense

applications. In addition, the input common-mode

•

EMI Hardened

range extends to the power supply rails and the

•

Temperature Range: -40°C to 125°C

output swings to within 3 mV of the rails, maintaining

•

Thin 3 mm x 3 mm x 0.45 mm X1SON package

the widest dynamic range possible. Likewise, EMI

protection is designed into the LPV542 in order to

2 Applications

reduce system sensitivity to unwanted RF signals

from mobile phones, WiFi, radio transmitters, and tag

•

Wearables

readers.

•

Personal Health Monitors

The LPV542 operates on a supply voltage as low as

•

Battery Packs

1.6 V, ensuring continuous superior performance in

•

Mobile Phones and Tablets

low battery situations. The device is available in an 8-

•

Solar-Powered or Energy Harvested Systems

pad, low-profile, leadless 3 mm x 3 mm x 0.45 mm

X1SON package and a standard 8 pin VSSOP.

•

PIR, Smoke, Gas, and Fire Detection Systems

•

Battery Powered Internet of Things (IoT) Devices

Device Information(1)

•

Remote Sensors

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Micropower Reference Buffer

X1SON (8)

3.00 mm x 3.00 mm

LPV542

VSSOP (8)

3.00 mm × 3.00 mm

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

the end of the data sheet.

space

space

Nanopower Oxygen Sensor Amplifier

Supply Current vs. Supply Voltage

1

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.