ISL5761/2IB

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Data Acquisition - Digital to Analog Converters (DAC) are essential for many applications. The ISL5761/2IB are high-precision 8-bit digital-to-analog converters (DACs) specifically designed for industrial applications. This article will discuss the application fields and working principles of the ISL5761/2IB DACs.

The ISL 5761/2IB devices are a family of low cost, small form factor DACs. The devices are available in four different models – the ISL5761, the ISL 5762, the ISL5761/2IB and the ISL5761/2IB-LF. Each model provides 8-bit monotonic, linear DAC performance with better than 10-bit linearity of less than 5.5 ppm/°C over a -40°C to +85°C temperature range. The devices combine an exceptionally low power consumption of only 25 mW with fast settling time of 3μs and an integrated reference of 2.5 V for best in class accuracy and performance.

The ISL5761/2IB DACs are designed to meet the demanding requirements of industrial systems. The devices are ideal for a wide range of applications including strain gauge bridges, pressure transducers, temperature sensors, current loop transducers and process control systems. The devices also feature programmable input and output ranges, low drift and high accuracy over a wide temperature range, which makes them ideal for industrial environment stability. Additionally, the ISL5761/2IB offers a high long-term stability, making them reliable and easy to use in industrial applications.

When it comes to the working principles of the ISL5761/2IB, the devices employ an external voltage reference, digital input and analog output. The digital input is composed of an internal 10-bit operational amplifier (op-amp) with a nominal fault current of 0.05mA, and the analog output can range from 0V to +2.5V. An 8-bit digital input code is used and is fed to the op-amp. The output of the op-amp is then converted by the internal DAC to analog voltage with a resolution of 8 bits at 0.1%); also, the DAC supports 8 bits of parallel Y-coding, as well as 8-bit DMX and direct command modes. Furthermore, the ISL5761/2IB is designed with a low-voltage voltage reference that uses a user-defined current to adjust the reference voltage over a range of 0.2V to 3.3V, optimized for low-cost control systems.

In conclusion, the ISL5761/2IB are high-precision 8-bit digital-to-analog converters (DACs) specifically designed for industrial applications. These DACs provide 8-bit monotonic, linear DAC performance and are ideal for a wide range of applications, with features such as programmable input and output ranges, low drift, high accuracy and high long-term stability. The working principles of the ISL5761/2IB include a voltage reference, digital input and analog output, all of which are optimised for low-cost control systems and reliable performance in industrial applications.

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