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ADI/LINEAR AD7171BCPZ-500RL7 AD7171BCPZ
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR AD7171BCPZ-500RL7
- Type
- LFCSP-10
- Minimum package
- 500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- AD7171BCPZ-500RL7
- Electronic Component
- 1
- Package
- LFCSP-10
- Electronic Component
- ADC IC
- Electronic Component
- 0.3g
- ADC
- Sigma-Delta
- Electronic Component
- 1
- Channel Count
- 1
- Sampling
- 125Hz
- Features
- Integrated;; Built-in Filter; positions
- Variable Gain
- Electronic Component
- Electronic Component
- BM0258838179
- Operating Temperature
- 40℃~+105℃
- Operating Voltage
- 2.7V~5.25V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
AD7171BCPZ-500RL7 产品概述
一、简介
AD7171BCPZ-500RL7 是一款面向精密低速测量的 16 位 Σ-Δ 型模数转换器 (ADC)，单通道差分输入，采用 LFCSP-10（3×3 mm）封装。器件支持 2.7V 至 5.25V 宽工作电压，内置时钟/振荡器（工作频率 64 kHz），数据速率固定为 125 Hz，适合对噪声和线性度有较高要求的传感器前端与称重、应变计、差分测量等应用场景。
二、主要性能参数
- 分辨率：16 位
- 采样/数据速率：125 Hz
- 通道数：1（差分输入）
- 接口类型：SPI（串行外围接口）
- ADC 架构：Sigma-Delta（Σ-Δ）
- 时钟：内置振荡器，fc = 64 kHz
- 基准电压源：外置（需外部低噪声参考）
- 积分非线性（INL）：0.4 LSB
- 静态电流：约 135 μA
- 工作电压范围：2.7 V ～ 5.25 V
- 工作温度范围：-40 ℃ ～ +105 ℃
- 可变增益：不支持
- 封装：LFCSP-10（3×3 mm）
- 品牌：ADI / Linear
三、功能特点与优势
- 高线性度：0.4 LSB 的积分非线性保证了在 16 位分辨率下的测量精度，适合精密传感与称重系统。
- 低功耗：135 μA 静态电流，有利于电池供电或低功耗监测终端。
- 差分输入：可直接驱动差分传感器或桥式传感元件，抑制共模干扰。
- 内置时钟：内置 64 kHz 振荡器简化外部时钟设计，同时保证 Σ-Δ 调制器的稳定工作。
- SPI 接口：标准 SPI 通信，易于与 MCU 或 FPGA 集成，软件控制灵活。
四、典型应用
- 精密称重秤与电子天平（桥式传感器接口）
- 应变计与力传感测量
- 工业过程监测与数据采集（低带宽高精度）
- 温度传感（结合低噪声外部参考）
- 电池监测与低功耗测量节点
五、设计与使用建议
- 参考源：器件需外接低噪声、低漂移参考电压；参考去耦与布局对最终噪声与漂移影响显著。
- 输入滤波：在差分输入端采用适当的抗混叠滤波与差分阻抗匹配，可减少高频干扰对 Σ-Δ 调制器的影响。
- 接地与布局：将模拟地与数字地合理分割并在器件附近汇流，缩短参考与输入走线，避免开环地线回路。
- 电源去耦：在供电引脚近端放置陶瓷与钽电容组合去耦，保证瞬态性能。
- SPI 时序：遵循器件时序规范，注意在数据速率与时钟切换时的稳定时间。
六、封装与环境规格
器件采用 LFCSP-10 小封装（3×3 mm），适合空间受限的工业与消费类设备。工作温度覆盖 -40 ℃ 至 +105 ℃，满足大部分工业级使用场景。总体上，AD7171BCPZ-500RL7 在需要 16 位线性精度、差分输入与低功耗的低带宽测量系统中具有明显优势。
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