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
Published: 2018-04-30
| Updated: 2025-07-03
