LTC1663-1CS5#TRMPBF

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Data Acquisition - Digital to Analog Converters (DAC) provide a means of transforming digital values into proportional analog values. Converters of this type are commonly used when it is necessary to create a signal based on software control, or to create a digital-analog link which allows digital systems to interface with analog devices. The LTC1663-1CS5#TRMPBF is one example of a digital-analog converter, and this document will discuss the application field and working principle of this IC.

The LTC1663-1CS5#TRMPBF is a 10-bit voltage output DAC which provides a user-adjustable full-scale output range of 0–1.2 V. It is designed to maximize accuracy and settle time performance while improving system productivity. The integrated data latch and internal double-buffered voltage reference simplify control and improve system performance.

Applications where the LTC1663-1CS5#TRMPBF may be used include process control, motor control, analog video, motor control and waveform generation. This DAC is also suitable for a wide range of other industrial applications such as test and measurement, telecommunications, and medical equipment. The on-chip power-on reset circuitry ensures reliable operation over a wide range of power supply voltages.

The LTC1663-1CS5#TRMPBF has an input format of 16-bit parallel. This means that it requires 16 parallel digital inputs in order to produce the analog output. The digital inputs are represented by two eight-bit words and can range from 0 to 1023 (10-bit resolution). The output is a 10-bit resolution, 0–1.2 V, voltage output.

The DAC supports single-byte or double-byte parallel data formats. The LTC1663-1CS5#TRMPBF can also be configured in standalone mode with an external clock, providing chip-select and write enable signals to the chip. In this mode, data sent from the host is latched into the internal latch and presented to the DAC register. The data is then held until the next write enable command is received.

The internal reference of the LTC1663-1CS5#TRMPBF can be adjusted with a single end-adjust resistor, providing a full-scale output range of 0–1.2 V. The references are internally mismatched to better than 0.2%, which enables the DAC to maintain overall system accuracy while reducing the noise of the reference.

The LTC1663-1CS5#TRMPBF also has an internal voltage amplifier which allows the output to be configured as an open-drain or source device. This feature allows the DAC to drive large capacitance loads while maintaining excellent signal-to-noise and dynamic performance. Additionally, the amplifier can be enabled or disabled via a user-selectable pin.

The LTC1663-1CS5#TRMPBF features shutdown mode, allowing the chip to be completely disabled by setting a pin to low voltage. This feature reduces power consumption and eliminates any additional dead-zone currents due to the switching mechanism. The DAC also includes an internal power-on reset circuit which allows the DAC to be safely initialized upon power-up.

In summary, the LTC1663-1CS5#TRMPBF is a versatile 10-bit voltage output DAC which is suitable for a wide range of industrial applications. It features a 16-bit parallel input format and provides a user-adjustable full-scale output range of 0–1.2 V. The integrated data latch, double-buffered voltage reference and on-chip power-on reset circuitry provide reliable performance over a wide range of power supply voltages.

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