Features

Applications

Description

The LPV811 (single) and LPV812 (dual) are a ultra-low-power precision operational amplifier family for “Always ON” sensing applications in battery powered wireless and low power wired equipment. With 8 kHz of bandwidth from 425 nA of quiescent current and a trimmed offset voltage to under 300µV, the LPV81x 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 LPV81x amplifiers have CMOS input stages with fempto-amp bias currents for impedance source applications. The LPV81x 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. EMI protection is designed into the LPV81x in order to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters, and tag readers.

Device Information(1)

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
For all available packages, see the orderable addendum at the end of the data sheet.

LPV8xx Family of Nanopower Amplifiers

PART NUMBER CHANNELS SUPPLY
CURRENT
(Typ/Ch)
OFFSET
VOLTAGE
(Max)
LPV801 1 500 nA 3.5 mV
LPV802 2 320 nA 3.5 mV
LPV811 1 450 nA 370 µV
LPV812 2 425 nA 300 µV

Nanopower CO Sensor

LPV811 LPV812 O2_Sens_Ckt.gif

LPV812 Offset Voltage Distribution

LPV811 LPV812 812B_Dist_3p3.png