AD7533LNZ

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AD7533LNZ is a versatile monolithic CMOS data acquisition or digital to analog converter (DAC) device designed to convert a digital data word from a microprocessor into a precisely programmed analog voltage or current. The DAC has 9-bit resolution with a maximum range of 8-bit plus sign. The device is incorporated with a user-programmable reference voltage which can be wired either internally (2.5V) or externally via a 5-pin jumper. It is also possible to select between three output range; 5V, 10V, and 20V. The AD7533LNZ is suitable for both single and dual supply applications.

AD7533LNZ Application Fields

The AD7533LNZ is a versatile device ideal for a wide range of applications in many industries such as medical instrumentation, communications, power electronics, and industrial process control. The device is also suitable for automotive and test and measurement applications. The device can be used in various data acquisition applications such as SIMD (single instruction, multiple data) computations, analog signal processing, instrumentation control systems, and robotics. The AD7533LNZ is also suitable for a variety of systems in medical applications such as X-ray imaging, electrocardiograms, and patient monitoring systems.

AD7533LNZ Working Principle

The AD7533LNZ is a monolithic DAC design comprising 8-bit plus sign resolution with an operating voltage of 5V, 10V, and 20V. Alphanumeric mode is used to supply the output, where a digital data word from a microprocessor can be used to convert into a programmed analog voltage or current. The simple programming, wide range of input codes, and user-programmable reference voltage make the AD7533LNZ an ideal choice for many applications.

The AD7533LNZ uses a resistor network to convert the 8-bit data word into an analog voltage, using two separate 4-bit Banks to generate the output voltage of the equipment. The first 4-bit Bank is used in the conversion of the most significant bit while the second 4-bit Bank is used in the conversion of the least significant bit. The device contains a voltage-based reference multiplier circuit, which can convert the reference voltage either from an external voltage source, for more precise gain control, or from an internal 2.5V reference. The internal reference must be present for the device to function.

The AD7533LNZ includes a differential error amplifier allowing the output to be trimmed to the desired accuracy using external resistors. The device also contains a power-on reset circuit which sets the output value to mid-scale (FS/2). The AD7533LNZ can operate on single or dual supplies, allowing the digital input and analog output (OFFSET and FS) to be set separately.

The AD7533LNZ is a very versatile device suitable for a wide range of data acquisition applications. The device provides high accuracy operation, digital inputs and independent analog outputs, along with programmable reference voltage and power-on reset. It offers a maximum range of 8-bit plus sign with 9-bit resolution, enabling design flexibility.

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