Microchip Technology

MCP3221A7T-E/OT  

Analog to Digital Converters

MCP3221A7T-E/OT Description

The MCP3221A7T-E/OT from Microchip Technology is a high-performance 12-bit SAR analog-to-digital converter (ADC) designed for precision measurement applications. Housed in a compact SOT23-5 package, this single-channel ADC operates over a wide analog and digital supply voltage range of 2.7V to 5.5V, making it suitable for both low-power and standard voltage systems. With a sampling rate of 22.3k samples per second, it delivers fast and accurate conversions, ideal for real-time data acquisition. The device features a single-ended input and a 1:1 sample-and-hold (S/H) to ADC ratio, ensuring minimal signal distortion. Its I2C interface simplifies integration with microcontrollers and other digital systems, while its supply-referenced architecture eliminates the need for an external reference voltage, reducing component count and board space.

MCP3221A7T-E/OT Features

• 12-bit resolution for precise analog signal digitization.
• Single-channel, single-ended input with a 1:1 S/H:ADC ratio.
• I2C-compatible interface (up to 400 kHz) for easy communication.
• Wide supply voltage range (2.7V–5.5V), compatible with 3.3V and 5V systems.
• Low power consumption, ideal for battery-operated devices.
• 22.3k samples/second sampling rate for dynamic signal processing.
• Internal supply voltage reference, eliminating external components.
• RoHS3 compliant and REACH unaffected, meeting environmental standards.
• Surface-mount SOT23-5 package, optimized for space-constrained designs.
• Moisture Sensitivity Level (MSL) 1, suitable for extended shelf life and handling.

MCP3221A7T-E/OT Applications

The MCP3221A7T-E/OT excels in applications requiring high accuracy, low power, and compact form factors, such as:

• Portable instrumentation (e.g., handheld multimeters, data loggers).
• Sensor interfaces (e.g., temperature, pressure, and light sensors).
• Battery-powered systems (e.g., IoT nodes, wearable devices).
• Industrial control systems (e.g., process monitoring, automation).
• Consumer electronics (e.g., smart home devices, audio equipment).
  Its I2C interface makes it particularly useful in embedded systems where minimal wiring and microcontroller compatibility are critical.

Conclusion of MCP3221A7T-E/OT

The MCP3221A7T-E/OT is a versatile 12-bit SAR ADC that combines high accuracy, low power, and ease of integration in a tiny footprint. Its wide voltage range, internal reference, and I2C interface make it a superior choice for designers seeking a reliable ADC for portable, industrial, and consumer applications. With Microchip’s proven reliability and compliance with environmental standards, this ADC is an excellent solution for modern electronic systems demanding precision and efficiency.

MCP3221A7T-E/OT Documents

Download datasheets and manufacturer documentation for MCP3221A7T-E/OT

PCN Assembly/Origin :

Multi Dev 28/Sep/2022      

Datasheets :

MCP3221      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

Design Resources :

MCP3221 Development Tool Selector      

HTML Datasheet :

MCP3221      

PCN Design/Specification :

MCP3221 02/Feb/2017      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH