Texas Instruments LPV542 双路毫微功耗运算放大器
德州仪器 LPV542 双路毫微功耗运算放大器是一款超低功耗运算放大器，具有 8kHz 带宽，消耗 490nA 静态电流，因而很适合电池供电应用。这些应用包括医疗和健身可穿戴设备、楼宇自动化和遥感节点。每个放大器的 CMOS 输入级偏置电流仅为皮安级，可有助减少光电二极管和充电感测应用等兆欧级反馈电阻拓扑中引入的常见误差。输入共模范围扩展到电源轨，输出摆幅扩展到电源轨的 ±3mV 范围内，从而保持了最宽的动态范围。LPV542 设有 EMI 保护，可降低来自手机、WiFi、无线电发射器和标签阅读器的无用射频信号对系统造成的影响。
特性
- 1.6V to 5.5V supply range
- 490nA (typical/channel) supply current
- 3mV (maximum/room) offset voltage
- 1µV/°C (typical) TcVos rating
- 8kHz (typical) gain-bandwidth rating
- Rail-to-Rail input and output
- Unity-gain stable
- 1pA (maximum/room) input bias current
- EMI hardened
- -40°C to +125°C temperature range
- Thin 3mm×3mm×0.45mm X1SON package
应用
- Wearables
- Personal health monitors
- Battery packs
- Mobile phones and tablets
- Solar-powered or energy harvested systems
- PIR, smoke, gas, and fire detection systems
- Battery powered Internet of Things (IoT) devices
- Remote sensors
- Micropower reference buffer
Functional Diagram
Associated Dev Tools
Universal Operational Amplifier Evaluation Modules are general purpose blank circuit boards that simplify the evaluation of operational amplifiers.
DIP-Adapter-EVM Evaluation Module provides an easy way to prototype small surface mount ICs.
AMPQUICKKIT-EVM Precision Amplifier Quickstart Kit simplifies op amp selection, design, and evaluation.
发布日期: 2015-06-25
| 更新日期: 2022-03-11