MCP3221A3T-E/OT

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Microchip Technology

12-BIT ADC, I2C, SINGLE CHANNEL 5 SOT-23 T/R ROHS COMPLIANT: YES

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MCP3221A3T-E/OT

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Microchip Technology

12-BIT ADC, I2C, SINGLE CHANNEL 5 SOT-23 T/R ROHS COMPLIANT: YES

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Description Specifications Series Pricing CAD Documents

Description

General part information

MCP3221 Series

The MCP3221 is a successive approximation A/D converter with 12-bit resolution. Available in the SOT-23 package, this device provides one single-ended input with very low power consumption. The MCP3221 provides a low maximum conversion current and standby current of 250 µA and 1 µA respectively. Low current consumption combined with the small SOT-23 package make this device ideal for battery powered and remote data acquisition applications. Communication to the MCP3221 is performed using a 2-wire I2C™Compatible compatible interface. Standard (100 kHz) and Fast (400 kHz) I2C™Compatible modes are available with the device. An on-chip conversion clock enables independent timing for the I2C™Compatible clock and the conversion clock.The device is also addressable allowing up to eight devices on a single 2-wire bus. The MCP3221 runs on a single supply voltage that operates over a broad range of 2.7 V to 5.5 V. This device also provides excellent linearity of ±1 LSB differential non-linearity and ±2 LSB integral non-linearity. Operating temperature range for this device is -40°C to +125°C.

Technical Specifications

Parameters and characteristics for this part

Specification	MCP3221A3T-E/OT

Architecture	SAR
Configuration	S/H-ADC
Data Interface	I2C
Input Type	Single Ended
Mounting Type	Surface Mount
Number of A/D Converters	1 count
Number of Bits	12 bits
Number of Inputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package Name	SOT-23-5
Ratio - ADC	1
Ratio - S/H	1
Reference Type	Supply
Sampling Rate (Per Second)	22.3 kHz
Voltage - Supply, Analog (Max)	5.5 V
Voltage - Supply, Analog (Min)	2.7 V
Voltage - Supply, Digital (Max)	5.5 V
Voltage - Supply, Digital (Min)	2.7 V

MCP3221 Series

Part	Number of Inputs	Input Type	Operating Temperature (Max)	Operating Temperature (Min)	Sampling Rate (Per Second)	Package Name	Voltage - Supply, Digital (Min)	Voltage - Supply, Digital (Max)	Configuration	Data Interface	Reference Type	Voltage - Supply, Analog (Min)	Voltage - Supply, Analog (Max)	Ratio - ADC	Ratio - S/H	Number of A/D Converters	Mounting Type	Number of Bits	Architecture
Microchip Technology MCP3221A4T-E/OTVAO	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A5T-E/OT	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A6T-E/OT	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A1T-E/OT	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A0T-E/OT	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A3T-E/OT	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A5T-I/OT	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A7T-E/OT	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A4T-E/OT	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR
Microchip Technology MCP3221A6T-E/OTVAO	1	Single Ended	125 °C	-40 °C	22.3 kHz	SOT-23-5	2.7 V	5.5 V	S/H-ADC	I2C	Supply	2.7 V	5.5 V	1	1	1 count	Surface Mount	12 bits	SAR

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Anti-Aliasing, Analog Filters for Data Acquisition Systems

Thermistors in Single Supply Temperature Sensing Circuits

Layout Tips for 12-Bit A/D Converter Application

MCP3221 Low-Power 12-Bit A/D Converter with I2C Interface Data Sheet

Temperature Sensing Technologies

Interfacing Pressure Sensors to Microchip's Analog Peripherals

MCP3221A3T-E/OT | Datasheet