TLV5620CNG4

Data Acquisition - Digital to Analog Converters (DAC)

The TLV5620CNG4 is a monolithic 8-bit buffered Multiplying Digital-to-Analog Converter (MDAC) manufactured on ahigh density complementary metal oxide silicon (CMOS)process. The external signal interface comprising of three input terminals - Voltage reference, 3...2...0 MSBs, and twooutput terminals - Output current and LSB8 - enables thedevice to be used in 8-bit multiplying DAC applications such as digital signal processing, data acquisition, andprocess control systems.

Applications

The wide range of features and application technique of the TLV5620CNG4 makes it suitable for different types of applications. It can be utilized for digital signal processing both for time and frequency domain conversion, intelligent instrumentation in industrial, measurement, laboratory and aviation industries and data acquisition systems.

Specifically, the device can be used as a digital-to-analog converter for discrete time and frequency domain conversion, as a dc-to-dc converter for efficiently controlling the voltage gain or offset of a dc signal, and as a digital-to-analog multiplier for accurately multiplying the analog signal by the digital signal.

Working Principle

The TLV5620CNG4 converts 8-bit digital input to analog output by utilizing a non-linear output resistance. Using internal methods, the resistance is set such that when a single bit is passed to the device, the output voltage is changed by a proportionate small amount. Then, when the next 8 bits are passed to the device, the output voltage can be changed by a multiple of this small amount. This allows for the linear sensitivity of the device.

By using an exclusive feedback system, an accuracy of 0.004% can be achieved. The force in the feedback loop is determined by the reference input and the feedback connection. This allows for an excellent resolution and accuracy from the device.

The size of the device is minimal and it can easily be mounted on a circuit board. The device has a wide operating temperature range -12°C to + 70°C -, so it can be used in a variety of settings. The low power supply current requirement and low static power consumption makes the device an excellent choice for embedded applications.

Conclusion

The TLV5620CNG4 is a powerful and versatile device for 8-bit digital-to-analog conversions. It can operate effectively as a digital-to-analog converter, dc-to-dc converter and digital-to-analog multiplier, making it suitable for a variety of applications. It is highly accurate and has a wide operating temperature range, making it suitable for a variety of settings.

The device has the advantage of low power supply current and static power consumption, making it an excellent choice for embedded applications. It is small in size, allowing it to be easily mounted and it has a wide operating temperature range.