Texas Instruments TLV854x Ultra-Low-Power Operational Amplifiers

Texas Instruments TLV854x Ultra-Low-Power Operational Amplifiers (Op Amps) are for cost-optimized sensing applications in wireless and low-power wired equipment. These devices minimize power consumption in equipment such as motion-detecting security systems (like microwave and PIR motion sensing) where operational battery life is critical. The Texas Instruments TLV854x also has 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.

Features

  • For cost-optimized systems
  • 500nA per channel nanopower supply current 
  • 3.1mV (maximum) offset voltage 
  • TcVos (0.8µV/°C)
  • 8kHz gain bandwidth 
  • Unity-gain stable
  • 100fA low input-bias current 
  • 1.7V to 3.6V wide supply range 
  • Rail-to-Rail Input and Output (RRIO)
  • –40°C to +125°C temperature range 
  • 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

Applications

  • Motion detectors using PIR sensors
  • 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

Functional Block Diagram

Block Diagram - Texas Instruments TLV854x Ultra-Low-Power Operational Amplifiers
Published: 2018-04-30 | Updated: 2025-07-03