LPV812中文资料德州仪器数据手册PDF规格书

1 Features

1• Nanopower Supply Current: 320 nA/channel

• Offset Voltage: 3.5 mV (max)

• TcVos: 1 μV/°C

• Unity Gain-Bandwidth: 8 kHz

• Wide Supply Range: 1.6 V to 5.5 V

• Low Input Bias Current : 0.1 pA

• Unity-Gain Stable

• 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

• CO and O2 Gas Detectors (TIDA-00854)

• PIR Motion Detectors (TIDA-00489)

• Ionization Smoke Alarms

• Thermostats

• IoT Remote Sensors

• Active RFID Readers and Tags

• Portable Medical Equipment

3 Description

The LPV801 (single) and LPV802 (dual) comprise a

family of ultra-low-power operational amplifiers for

sensing applications in battery powered wireless and

low power wired equipment. With 8kHz of bandwidth

from 320nA of quiescent current, the LPV80x

amplifiers minimize power consumption in equipment

such as CO detectors, smoke detectors and PIR

motion detectors where operational battery-life is

critical.

In addition to being ultra-low-power, the LPV80x

amplifiers have CMOS input stages with typically

femto-amp bias currents. The LPV80x amplifiers also

feature a negative-rail sensing input stage and a railto-

rail output stage that is capable of swinging within

millivolts of the rails, maintaining the widest dynamic

range possible. EMI protection is designed into the

LPV80x in order to reduce system sensitivity to

unwanted RF signals from mobile phones, WiFi, radio

transmitters and tag readers.