MCP3221A1T-E/OT

MCP3221A1T-E/OT is a successive approximation A/D converter (ADC) with a 12-bit resolution. This device provides one single-ended input with very low power consumption. Based on advanced CMOS technology, this device provides a low maximum conversion current and standby current of 250µA and 1µA, respectively. Low-current consumption makes this device ideal for battery-powered and remote data acquisition applications. Communication to the device is performed using a 2-wire, I²C compatible interface. An on-chip conversion clock enables independent timing for the I²C and conversion clocks. This device is also addressable, allowing up to eight devices on a single 2-wire bus. It is used in applications such as data logging, multi-zone monitoring, handheld portable applications, battery-powered test equipment, and remote or isolated data acquisition.

• Single-supply voltage range from 2.7V to 5.5V, THD is -82dB typical at (VIN = 0.1V to 4.9V at 1KHz)
• Differential nonlinearity is ±1LSB maximum at (VDD = 5.0V, VSS = GND, RPU = 2Kohm)
• Integral nonlinearity is ±2LSB maximum at (VDD = 5.0V, VSS = GND, RPU = 2Kohm)
• Conversion current is 250µA maximum at (VDD = 5.0V, VSS = GND, RPU = 2Kohm)
• Standby current is 1µA maximum at (VDD = 5.0V, VSS = GND, RPU = 2Kohm)
• Clock frequency is 100KHz maximum at (I²C standard mode, VDD = 2.7V to 5.5V, VSS = GND)
• Clock frequency is 400KHz maximum at (I²C fast mode, VDD = 2.7V to 5.5V, VSS = GND)
• Sample rate is 22.3ksps maximum at (fSCL = 400KHz, VDD = 5V, VSS = GND, RPU = 2Kohm)
• On-chip sample and hold, on-chip conversion clock, single-ended analogue input channel
• Operating temperature range from -40°C to +125°C, 5-lead SOT-23 package