MCP3221A6T-E/OT

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MCP3221A6T-E/OT

+BOM

IC ADC 12BIT SAR SOT23-5

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Specifications

Attribute Value
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Number of Bits 12
Sampling Rate(Per Second) 22.3k
Number of Inputs 1
Input Type Single Ended
Data Interface I²C
Configuration S/H-ADC
Ratio - S / H: ADC 1:1
Number of A/D Converters 1
Architecture SAR
Reference Type Supply
Voltage - Supply, Analog 2.7V ~ 5.5V
Voltage - Supply, Digital 2.7V ~ 5.5V
Operating Temperature -40°C ~ 125°C
Supplier Device Package SOT-23-5

Overview

Description

The MCP3221A6T-E/OT is a 12-bit analog-to-digital converter (ADC) from Microchip Technology. It features an I²C interface, operates at 2.7V–5.5V, and offers a single-channel input with a sampling rate of 22.3 kSPS.
Key features:
- Low power consumption (250 µA active, 1 µA standby).
- Small SOT-23-5 package, ideal for space-constrained designs.
- Internal reference voltage, eliminating the need for an external reference.
Applications include sensor interfacing, battery monitoring, and portable devices. Its I²C compatibility simplifies integration with microcontrollers.
The A6T variant has a fixed I²C address (0x4D), ensuring easy addressing in multi-device setups.
For more details, refer to the datasheet on Microchip’s website.

Equivalent

Equivalent products to the MCP3221A6T-E/OT (12-bit I2C ADC) include:
- ADS1015 (Texas Instruments)
- LTC2309 (Analog Devices)
- MAX11613 (Maxim Integrated)
- PCA9540 (NXP, for I2C multiplexing if needed)
These offer similar 12-bit resolution and I2C interfaces. Check datasheets for exact pin compatibility and features.

Pinout

The MCP3221A6T-E/OT is a 12-bit ADC (Analog-to-Digital Converter) in a SOT-23-5 package with 5 pins:
1. VDD – Power supply (2.7V to 5.5V).
2. VSS – Ground.
3. SCL – I²C clock input.
4. SDA – I²C bidirectional data line.
5. VIN – Analog input (0V to VDD).
It operates as a single-channel ADC with an I²C interface (up to 400 kHz). The device provides 12-bit resolution with a single-ended input and includes an internal voltage reference.
Key Features:
- Small form factor (SOT-23-5).
- Low power consumption (typical 250 µA at 5V).
- I²C address options (factory-set, e.g., 0x4D for A6 variant).
Ideal for battery-powered, space-constrained applications.

Application

The MCP3221A6T-E/OT is a 12-bit ADC used in various low-power, small-form-factor applications. Key areas include:
- Portable Electronics: Battery-powered devices like sensors and wearables.
- Industrial Systems: Process monitoring, control systems, and data logging.
- Consumer Electronics: Smart home devices, audio equipment, and touch interfaces.
- Automotive: Sensor interfaces for non-critical systems.
- Medical Devices: Compact health monitoring tools.
Its I²C interface, low power consumption (~250 µA active), and small SOT-23 package make it ideal for space-constrained designs.

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