TLV8544DR中文资料德州仪器数据手册PDF规格书

1 Features

1• For Cost-Optimized Systems

• Nanopower Supply Current: 500 nA per Channel

• Offset Voltage: 3.1 mV (maximum)

• TcVos: 0.8 μV/°C

• Gain Bandwidth: 8 kHz

• Unity-Gain Stable

• Low Input-Bias Current: 100 fA

• Wide Supply Range: 1.7 V to 3.6 V

• Rail-to-Rail Input and Output (RRIO)

• Temperature Range –40°C to +125°C

• Industry Standard Package

– Quad in 14-pin TSSOP and SOIC

– Dual in 8-pin SOIC

– Single in 5-pin SOT-23

• Leadless Package

– Dual in 8-Pin X2QFN

2 Applications

• Motion Detectors Using PIR Sensors SNAA301

• Motion Detectors Using Microwave Sensors

• Gas Detectors

• Ionization Smoke Alarms

• Thermostats

• Remote Sensors, IoT (Internet of Things)

• Active RFID Readers and Tags

• Portable Medical Equipment

• Glucose Monitoring

3 Description

The TLV854x ultra-low-power operational amplifiers

(op amps) are intended for cost-optimized sensing

applications in wireless and low-power wired

equipment. The TLV854x family of op amps minimize

power consumption in equipment such as motion

detecting security systems (like microwave and PIR

motion sensing) where operational battery life is

critical. They also have a carefully designed CMOS

input stage, enabling very low, femto-ampere bias

currents, thereby reducing IBIAS and IOS errors that

would otherwise impact sensitive applications.

Examples of these include transimpedance amplifier

(TIA) configurations with megaohm feedback

resistors, and high source impedance sensing

applications. Additionally, built-in EMI protection

reduces sensitivity to unwanted RF signals from

sources such as mobile phones, WiFi, radio

transmitters and tab readers.