DAC121S101CIMKX/NOPB Integrated Circuits (ICs)

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Data Acquisition – Digital to Analog Converters (DAC) is an invaluable tool for converting digital values into analog signals.

The DAC121S101CIMKX/NOPB is a 12-bit, single-supply digital-to-analog converter (DAC) with an integrated reference. It uses a selectable 10V reference and an external reference that ranges from 0V to 5V, a serial peripheral interface (SPI) which supports both 3-wire and 4-wire bus systems, and a wide range of external clock rates. The DAC121S101 supports a 16-bit data format and operates from a single 2.7V to 5.5V supply.

Application Field

The DAC121S101CIMKX/NOPB is a versatile low-power solution for precision digital-to-analog conversion. It is suitable for a range of applications, such as: waveform generation, controller set-up, digital-to-voltage conversion, and low frequency signal generation. This device is highly accurate, with an SNR of 49.3dBFS, and uses a selectable 10V reference.

Working Principle

The DAC121S101CIMKX/NOPB operates on a principle of digital-to-analog conversion, from a 12-bit resolution and a maximum input data rate of 400kSps. The device allows for a selectable internal 10V reference, in addition to an external reference. Data is driven to the device using an SPI, with 4-wire and 3-wire options available. Once the data is clocked in, the DAC121S101CIMKX/NOPB will convert the digital signal into an analog voltage, with one additional reference for the return line.

The DAC121S101CIMKX/NOPB has a two-stage amplifier, which is adjustable and can take on a wide range of gains. The device is output-gain buffered, and supports precision gains of either 0.5dB or 1dB. Allowing for a wide range of flexibility, this device can be used in a variety of applications and data formats.

The DAC121S101CIMKX/NOPB has excellent linearity, with an INL of 0.387LSB and an offset error of 0.208LSB. It also has a fast response time of 243µs. The thermal shutdown circuitry included in this device will protect the system from overall failure by automatically shutting down the DAC121S101CIMKX/NOPB in the event of an overheat.

Due to its linearity and high resolution, the DAC121S101CIMKX/NOPB is an ideal device for precision digital data conversion. It is ideal for low-noise, low-drift precision applications, such as data acquisition, waveform generation, low-frequency signal generation, and controller setup. The inclusion of the 10V reference combined with an external reference allows for wide range of applications and data formats to be addressed by this device.

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