LTC2656IFE-L12#TRPBF

Data Acquisition - Digital to Analog Converters (DAC)

The LTC2656IFE-L12#TRPBF is a high-performance, low-power, 2-channel, 12-bit digital-to-analog converter (DAC). It supports both dual and single supply operation, providing 12-bit resolution and 0.5LSB (Minimum Monotonic) DNL (Differential Nonlinearity) specs over the full temperature range. The device can be used for a variety of applications, such as data/signal conditioning, DAC buffering, and Digital Audio Interface conditioning.

Working Principle

The DAC operates in two modes, Voltage Output and Current Output, allowing the LTC2656IFE to output either an analog voltage or an analog current, with the 12-bit digital input driving the DAC output. The DAC is controlled by a three line Serial Interface, which consists of the SCLK (Serial Clock) line, the SDI (Serial Data Input) line, and the CS (Chip Select) line. In operation, a 16-bit word is clocked into the SDI pin while either voltage or current output is selected.

The 12-bit Voltage Output section of the device functions as a simple DAC, converting 12-bit binary data (Digital Input) into a linear voltage representing the desired output level. The voltage output section is capable of both bipolar and unipolar operation. Depending on the option chosen, the 12-bit output voltage can be scaled to any value between -5V and +5V, or 0V and +5V. The 12-bit Current Output section of the device functions as a simple DAC, converting 12-bit binary data (Digital Input) into a linear current representing the desired output level. The current output is internally limited to either ±10mA or 0mA to 10mA, depending on the option chosen.

Application Field

LTC2656IFE-L12#TRPBF is perfect for general purpose voltage or current output applications such as precision data/signal conditioning, DAC buffering, and digital audio interface conditioning. It is a cost-effective solution that operates over the full temperature range, and is also designed to be very power efficient, consuming less than 500μA at a 5V supply. This device can be used in multiple applications, such as data acquisition and control, instrumentation, and industrial automation.

Furthermore, the device is particularly suited for data acquisition applications such as medical instrumentation, scientific instruments, and automated test equipment. With its high-resolution output and flexible input word length, it is perfect for multi-channel, data acquisition systems that require precise, low-level signal conditioning.

In addition, the device is also suitable for automotive and industrial applications, such as robotics, factory automation, and process control. With its low-power consumption, it is well suited for low-current applications such as portable or remote instrumentation.

Conclusion

The LTC2656IFE-L12#TRPBF is a high performance, low power, two-channel, 12-bit Digital to Analog Converter. The device offers both dual and single supply operation, and provides 12-bit resolution and 0.5LSB (Minimum Monotonic) DNL (Differential Nonlinearity) specs over the full temperature range. Its flexible input word length and precise voltage or current output make it ideal for a variety of data acquisition, instrumentation, and industrial automation applications. Its low power consumption further enables it to be used in low-current applications such as portable or remote instrumentation.