AD7193BCPZ

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Data Acquisition - Analog to Digital Converters (ADC) provide a simple method for us to measure and record the amount of electric current, voltage or pressure. The AD7193BCPZ is a 16-bit, simultaneous sampling, 8-channel analog-to-digital converter (ADC). It provides superior performance and versatility in a small package with an industry leading power specification. It is a versatile, low-cost solution for industrial, laboratory and consumer applications.

AD7193BCPZ application field:

• Industrial systems
• Laboratory measurements
• Consumer products
• Medical systems
• Metrology systems

The AD7193BCPZ consists of an 8-channel simultaneous-sampling, switched-capacitor ADC, with a programmable gain amplifier (PGA). The input data is 16-bit resolution, with a range from 0 to 15999 counts. It also provides a built-in reference voltage adjuster for setting the reference for the PGA. The device has a Serial Peripheral Interface (SPI) for data transfer between the AD7193BCPZ and the microcontroller.

AD7193BCPZ working principle:

The working principle of the AD7193BCPZ is based on a switched-capacitor approach. The system uses capacitors to convert the analog input signal into digital data. The charging state of the capacitors is determined by the amount of charge transfer. A comparator is used to measure the charge transfer and the corresponding digital value is sent to the ADC.The AD7193BCPZ uses a charge redistribution technique to perform the A/D conversion. This device contains two operational amplifiers (one for each input channel) and two switches. The inputs of the operational amplifiers are switched between the external input channels and the internal voltage reference. The outputs of the operational amplifiers are then switched between the two switches. When the capacitor C1 is charged, the switch S1 connects the voltage reference to the output of the operational amplifier and the switch S2 connects the output of the operational amplifier to the capacitor C2. The capacitors then alternately charge and discharge, allowing the device to measure the input. In the end, the charge values are converted into a 16-bit digital word.

AD7193BCPZ is a powerful, multi-channel ADC which combines excellent performance and low cost. It is designed for industrial, laboratory and consumer applications. With a 16-bit resolution and a range from 0 to 15999 counts, it provides great versatility and accuracy for the user. The device is easy to use with a built-in SPI interface for data transfer, and a built-in reference voltage adjuster for setting the PGA. It is also capable of operating from multiple power supplies, making it an ideal choice for applications in a wide range of systems.

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