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MCP3221A4T-E/OTVAO

产品分类: 模数转换器(ADC)
产品描述: 2.7V~5.5V 22.3Ksps 12 I²C Single-Ended 2.7V~5.5V SAR SOT-23-5 贴片安装,黏合安装
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标准整包数: 0
MICROCHIP TECHNOLOGY 模数转换器(ADC) MCP3221A4T-E/OTVAO

MCP3221A4T-E/OTVAO概述

    # MCP3221 12-Bit A/D Converter Technical Overview
    1. Product Introduction
    The MCP3221 is a successive approximation analog-to-digital converter (ADC) designed by Microchip Technology. This compact ADC features a 12-bit resolution, making it suitable for precision data acquisition tasks. The device operates using a single-ended analog input channel and is equipped with an on-chip sample-and-hold circuit and conversion clock for accurate readings. It communicates via a two-wire I²C interface, supporting both standard (100 kHz) and fast (400 kHz) modes.
    Key applications include:
    - Data logging systems
    - Multi-zone monitoring
    - Handheld portable devices
    - Battery-powered test equipment
    - Remote or isolated data acquisition
    The small SOT-23-5 package ensures minimal space usage, making it ideal for space-constrained designs. With its low-power design, the MCP3221 operates efficiently even under strict power budgets, such as in battery-powered devices.
    2. Technical Parameters
    Absolute Maximum Ratings
    | Parameter | Value |

    | Supply Voltage (VDD) | +7.0 V |
    | Analog Pin Voltage | -0.6V to VDD+0.6V |
    | Digital Pin Voltage | -0.6V to VDD+1.0V |
    | Storage Temperature | -65°C to +150°C |
    | Maximum Junction Temp.| +150°C |
    DC Electrical Specifications
    | Parameter | Value |

    | Resolution | 12 bits |
    | Integral Nonlinearity | ±0.75 LSB max |
    | Differential Nonlinearity | ±0.5 LSB max |
    | Offset Error | ±0.75 LSB max |
    | Conversion Current | 175–250 µA |
    | Standby Current | 0.005–1 µA |
    | Operating Voltage | 2.7–5.5 V |
    | Sampling Rate (Fast Mode) | 22.3 ksps |
    Temperature Specifications
    | Parameter | Value |

    | Operating Temperature | -40°C to +125°C |
    | Storage Temperature | -65°C to +150°C |
    3. Product Features and Advantages
    Key Features
    - High Resolution: 12-bit digital output provides precise measurements.
    - Low Power Consumption: Peak conversion current of just 250 µA, with a standby current as low as 5 nA typical.
    - Flexible Communication: Supports I²C communication with standard (100 kHz) and fast (400 kHz) modes.
    - On-Chip Integration: Includes an internal clock and sample-and-hold circuitry for self-contained operation.
    - Wide Supply Voltage Range: Operates between 2.7V and 5.5V.
    Market Competitiveness
    The MCP3221 excels in scenarios requiring low power, high precision, and compact form factors. Its compatibility with both standard and fast I²C modes ensures flexibility across different communication protocols. Additionally, its small SOT-23 package makes it ideal for applications where board real estate is limited.
    4. Application Case Studies and Recommendations
    Typical Use Cases
    1. Remote Data Acquisition: Ideal for IoT sensors deployed in remote locations due to its low power consumption and long battery life.
    2. Multi-Zone Monitoring: Suitable for multi-sensor environments, as up to eight MCP3221s can share a single I²C bus.
    3. Portable Instruments: Handheld devices benefit from the MCP3221's lightweight design and low energy requirements.
    Usage Suggestions
    - Optimize Pull-Up Resistors: For fast I²C mode (400 kHz), use a 2 kΩ pull-up resistor to ensure reliable signal integrity.
    - Proper Grounding: Ensure adequate decoupling capacitors are placed close to the VDD pin to stabilize the supply voltage.
    - Consider Temperature Range: For industrial-grade applications (-40°C to +125°C), verify that the operating temperature aligns with system requirements.
    5. Compatibility and Support
    Device Compatibility
    The MCP3221 integrates seamlessly with any standard I²C controller, making it compatible with most microcontroller-based systems. The two-wire

MCP3221A4T-E/OTVAO参数

参数
输入类型 Single-Ended
架构 SAR
采样率 22.3Ksps
分辨率 -
信噪比 -
位数 12
接口类型 I²C
通道数 -
电压 - 电源,数字 2.7V~5.5V
电压-电源,模拟 2.7V~5.5V
通用封装 SOT-23-5
安装方式 贴片安装,黏合安装
零件状态 在售
包装方式 卷带包装

MCP3221A4T-E/OTVAO厂商介绍

Microchip Technology是一家全球领先的半导体公司,总部位于美国亚利桑那州。公司成立于1989年,专注于设计、制造和销售各种微控制器、模拟、FPGA、连接、功率管理、分立和安全产品。

Microchip Technology的产品主要分为以下几类:
1. 微控制器(MCU):包括PIC、AVR和dsPIC系列,广泛应用于工业控制、消费电子、汽车电子等领域。
2. 模拟产品:包括电源管理、信号处理、接口和传感器等,用于提高系统性能和降低功耗。
3. 连接产品:包括以太网、无线和串行通信解决方案,实现设备间的高效数据传输。
4. FPGA(现场可编程门阵列):提供灵活的硬件解决方案,适用于高速数据处理和复杂逻辑设计。
5. 功率管理产品:包括电源模块、电池管理等,用于提高能效和延长设备寿命。
6. 分立产品:包括二极管、晶体管、MOSFET等,用于电路保护和信号放大。
7. 安全产品:包括加密模块、安全存储器等,保护数据安全和防止篡改。

Microchip Technology的优势在于其丰富的产品线、强大的研发能力和全球销售网络。公司不断推出创新产品,满足客户在不同应用领域的多样化需求。同时,Microchip还提供全面的技术支持和定制化解决方案,帮助客户缩短产品上市时间并降低开发成本。

MCP3221A4T-E/OTVAO数据手册

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