Analog Devices Inc. LTC2645IMS-L8#PBF Quad 12-/10-/8-Bit PWM to VOUT DACs with 10ppm/°C Reference

The LTC2645IMS-L8#PBF from Analog Devices Inc. is a highly integrated digital-to-analog converter (DAC) designed for precision applications requiring the conversion of pulse width modulated (PWM) signals to stable analog voltages. This quad DAC features four independent DAC channels, each capable of converting 12-bit, 10-bit, or 8-bit PWM input signals into proportional voltage outputs.

Encased in a compact 16-lead MSOP package, the LTC2645IMS-L8#PBF offers a space-saving solution that is ideal for high-density system designs. The device operates from a single 2.7V to 5.5V supply, making it versatile for use in a variety of applications ranging from industrial process control to automotive systems and portable battery-operated devices.

One of the key features of this DAC is its integrated high-accuracy reference with a low temperature coefficient of just 10ppm/°C. This ensures stable performance over a wide temperature range, minimizing the impact of environmental variations on the output accuracy. The LTC2645 provides a full-scale output voltage range of 0V to VREF, giving engineers flexibility in system design.

Each DAC channel of the LTC2645IMS-L8#PBF can be independently programmed via a simple and fast PWM interface, which reduces the complexity of the digital interface and minimizes the need for extensive digital code. The fast settling time of the DAC ensures rapid response to PWM input changes, which is critical for dynamic applications requiring high-speed performance.

Additional features include a clear input that resets all DACs to zero scale, and a power-on reset that ensures the DAC outputs power up to zero scale or midscale and remain there until a valid write takes place. This makes the LTC2645IMS-L8#PBF an excellent choice for systems that require a predictable startup behavior.

With its robust feature set and high level of integration, the LTC2645IMS-L8#PBF from Analog Devices Inc. is an ideal solution for designers looking to streamline their PWM to analog voltage conversion processes while maintaining high precision and reliability.