描述 Description

The TPC2221 is an all-in-one, loop-powered digital-toanalog converter (DAC) that is tailored to the requirements of intelligent sensor manufacturers within the industrial automation sector.This DAC offers a highly accurate, fully integrated, and cost-effective solution in a compact TSSOP package.

It features a built-in voltage regulator that not only powers the TPC2221 but also other components within the sensor, providing a stable output voltage between 1.8 V and 12 V.The TPC2221 also incorporates 1.915 V and 2.5 V reference voltages, which means there's no need for additional discrete regulators or voltage references.

It is fully compatible with the standard HART? FSK protocol used in remote sensor communication without any loss in performance.The device's highspeed serial interface operates at 30 MHz and supports easy integration with popular microprocessors and microcontrollers through a SPI-compatible, 3-wire interface.

The TPC2221 ensures monotonicity up to 16 bits and delivers exceptional performance with 0.0015% integral nonlinearity, 0.0012% offset error, and 0.0006% gain error under typical operating conditions.

Lastly, the TPC2221 is offered in a 28-lead TSSOP package and is designed to operate over an extended industrial temperature range from ?40°C to +125°C.

應用 Application

? Industrial process control



? 4 mA to 20 mA loop-powered transmitters



? Smart transmitters



? HART network connectivity