Description

The Microchip Technology Inc. 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. Based on an advanced CMOS technology, 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.

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 package

Applications

• Data Logging

• Multi-zone Monitoring

• Hand-Held Portable Applications

• Battery-Powered Test Equipment

• Remote or Isolated Data Acquisition