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MCP3221A5T-I/OT Specifications

Manufacturer: Microchip Technology

Category: Analog-to-Digital Converters (ADCs)

Series: MCP3221

Package: SOT-23-5

Operating Temperature: -40°C to +85°C

Mounting Type: Surface Mount

Resolution: 12-bit

Number of Channels: 1

Interface Type: I²C

Supply Voltage: 2.7V to 5.5V

Sampling Rate: 22.3 kSPS (max)

Reference Type: Supply

DNL (Differential Nonlinearity): ±1 LSB

INL (Integral Nonlinearity): ±1 LSB

Power Consumption: 450 µA (active), 1 µA (standby)

Descriptions

The MCP3221A5T-I/OT is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) with an I²C-compatible interface. It operates from a single supply voltage (2.7V to 5.5V) and provides low-power consumption, making it suitable for battery-powered applications. The device features a single-ended input channel and includes an internal sample-and-hold circuit for accurate conversions.

Features

• 12-bit resolution
• Single-channel ADC
• I²C interface (up to 400 kHz)
• Low power consumption (450 µA active, 1 µA standby)
• Wide operating voltage range (2.7V to 5.5V)
• Small SOT-23-5 package
• 22.3 kSPS maximum sampling rate
• Internal sample-and-hold circuit
• Factory calibrated for accuracy
• AEC-Q100 qualified (available in select versions)

This device is commonly used in portable instrumentation, sensor interfaces, battery monitoring, and industrial control systems.