Microchip Technology MCP3221A1T-E/OT

Description
The MCP3221 is a 12-bit successive approximation A/D converter with a single-ended analog input channel. It features low power consumption, with a maximum conversion current of 250 μA and a standby current of 1 μA. The MCP3221 communicates via a 2-wire, I²C compatible interface, supporting both Standard (100 kHz) and Fast (400 kHz) modes. It is addressable, allowing up to eight devices on a single 2-wire bus. The MCP3221 operates on a single supply voltage ranging from 2.7V to 5.5V and provides excellent linearity, with a maximum differential non-linearity of ±1 LSB and integral non-linearity of ±2 LSB.

Features
12-bit resolution
±1 LSB DNL, 2 LSB INL max.
250 μA max conversion current
5 nA typical standby current, 1 μA max.
I²C-compatible serial interface
100 kHz I²C Standard Mode
400 kHz I²C Fast Mode
Up to 8 devices on a single 2-Wire bus
22.3 ksps in I²C Fast Mode
Single-ended analog input channel
On-chip sample and hold
On-chip conversion clock
Single-supply specified operation: 2.7V to 5.5V
Temperature range:
Industrial: -40°C to 85°C
Extended: -40°C to 125°C
Small SOT-23-5 package

Applications
Data Logging
Multi-zone Monitoring
Hand-Held Portable Applications
Battery-Powered Test Equipment
Remote or Isolated Data Acquisition