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通用运算放大器

TLV8544

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四路、3.6V、8kHz、超低静态电流 (500nA)、RRIO 运算放大器

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TLV8544

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产品详情

Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.6 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Rail-to-rail In, Out GBW (typ) (MHz) 0.008 Slew rate (typ) (V/µs) 0.0035 Vos (offset voltage at 25°C) (max) (mV) 3.1 Iq per channel (typ) (mA) 0.0005 Vn at 1 kHz (typ) (nV√Hz) 264 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.8 Features Cost Optimized, EMI Hardened CMRR (typ) (dB) 75 Iout (typ) (A) 0.015 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.00064 Input common mode headroom (to positive supply) (typ) (V) 0.0005 Output swing headroom (to negative supply) (typ) (V) 0.012 Output swing headroom (to positive supply) (typ) (V) -0.012
Number of channels 4 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.6 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.7 Rail-to-rail In, Out GBW (typ) (MHz) 0.008 Slew rate (typ) (V/µs) 0.0035 Vos (offset voltage at 25°C) (max) (mV) 3.1 Iq per channel (typ) (mA) 0.0005 Vn at 1 kHz (typ) (nV√Hz) 264 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.8 Features Cost Optimized, EMI Hardened CMRR (typ) (dB) 75 Iout (typ) (A) 0.015 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) 0.00064 Input common mode headroom (to positive supply) (typ) (V) 0.0005 Output swing headroom (to negative supply) (typ) (V) 0.012 Output swing headroom (to positive supply) (typ) (V) -0.012
SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm) TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm)
  • 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
  • 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

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.

The TLV854x op amps operates with a single supply voltage down to 1.7 V supply, providing continuous performance in low battery situations over the extended temperature range of –40°C to +125°C. All versions are specified for operation from –40°C to 125°C. The TLV8541 (single version) is available in the 5-pin SOT-23 while the TLV8542 (dual version) is available in the 8-pin SOIC package. The 4-channel TLV8544 (quad version) is available in the industry standard 14-pin TSSOP package.

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.

The TLV854x op amps operates with a single supply voltage down to 1.7 V supply, providing continuous performance in low battery situations over the extended temperature range of –40°C to +125°C. All versions are specified for operation from –40°C to 125°C. The TLV8541 (single version) is available in the 5-pin SOT-23 while the TLV8542 (dual version) is available in the 8-pin SOIC package. The 4-channel TLV8544 (quad version) is available in the industry standard 14-pin TSSOP package.

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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 TLV854x 500-nA, RRIO, Nanopower Operational Amplifiers for Cost-Optimized Systems 数据表 (Rev. E) PDF | HTML 2018-4-24
应用简报 GPIO Pins Power Signal Chain in Personal Electronics Running on Li-Ion Batteries 2018-2-12
电子书 The Signal e-book: 有关运算放大器设计主题的博客文章汇编 PDF | HTML 英语版 PDF | HTML 2018-1-31
应用手册 Nano-Power Battery Monitoring in Personal Electronics 2017-12-8
技术文章 How to bias PIR sensors to prolong battery life in wireless motion detectors PDF | HTML 2017-5-30
应用手册 Design of Ultra-Low Power Circuits for Battery-Powered Wireless PIR Motion Detec (Rev. A) 2017-5-12
用户指南 BOOSTXL-TLV8544PIR User's Guide (Rev. A) 2017-4-17
应用手册 Cost-Optimized Opamp Window Comparator for Ultra-low Power PIR Motion Detectors 2017-3-6

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

AMP-PDK-EVM — 放大器高性能开发套件评估模块

放大器高性能开发套件 (PDK) 是一款用于测试常见运算放大器参数的评估模块 (EVM) 套件，与大多数运算放大器和比较器均兼容。该 EVM 套件提供了一个主板，主板上具有多个插槽式子卡选项以满足封装需求，使工程师能够快速评估和验证器件性能。

AMP-PDK-EVM 套件支持五种常用的业界通用封装，包括：

  • D（SOIC-8 和 SOIC-14）
  • PW (TSSOP-14)
  • DGK (VSSOP-8)
  • DBV（SOT23-5 和 SOT23-6）
  • DCK（SC70-5 和 SC70-6）
用户指南: PDF | HTML
支持的产品和硬件
评估板

BOOSTXL-TLV8544PIR — TLV8544 四通道毫微功耗运算放大器 PIR 运动检测器演示模块

BOOSTXL-TLV8544PIR 演示板是一款 BoosterPack，旨在与 LAUNCHXL-CC2650 多频率 2.4GHz 无线 LaunchPad 配合使用。BOOSTXL-TLV8544PIR 演示了四通道超低功耗运算放大器 (TLV8544) 作为模拟前端 (AFE) 在 PIR 动作检测系统中的应用。此演示可轻松作为超低功耗、电池供电、无线 PIR 或微波动作检测系统的基础。
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仿真模型

TLV8544 TINA-TI Reference Design (Rev. B)

SNOM613B.TSC (54 KB) - TINA-TI 参考设计
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仿真模型

TLV8544 TINA-TI Spice Model (Rev. A)

SNOM614A.ZIP (15 KB) - TINA-TI Spice 模型
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参考设计

TIDA-010997 — 边缘 AI 传感器 BoosterPack™ 参考设计

此参考设计引入了一种即插即用的时间系列传感器 BoosterPack™，该传感器与多个 TI 评估模块 (EVM) 仍然兼容。此设计可直接访问不同类型的传感器，从而实现简单的数据收集，以便使用 CCStudio™ Edge AI Studio 开发和评估边缘 AI 应用。

支持的产品和硬件
参考设计

TIDA-01398 — 适用于成本优化型系统的超低功耗无线 PIR 运动检测器参考设计

该参考设计采用四通道纳米功率运算放大器和 SimpleLink™ 超低功耗 2.4GHz 无线微控制器 (MCU) 平台，演示了低功耗、成本优化的无线运动检测器的实现。  这些技术可实现超长的电池使用寿命，如标准 CR2032 锂离子纽扣电池的使用寿命可长达 10 年，可用于运动检测或通过占用检测进行照明控制等应用。  PIR 传感器的灵敏度最高可达 30 英尺，关断电流为 2.16µA。  此设计指南包括系统设计技术、详细测试结果和有助于快速启动和运行设计的信息。
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOIC (D) 14 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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