AD7228ABPZ

Reference Type:	External
Base Part Number:	AD7228
Supplier Device Package:	28-PLCC (11.51x11.51)
Package / Case:	28-LCC (J-Lead)
Operating Temperature:	-40°C ~ 85°C
Architecture:	R-2R
INL/DNL (LSB):	±1 (Max), ±1 (Max)
Voltage - Supply, Digital:	13.5 V ~ 16.5 V
Voltage - Supply, Analog:	10.8 V ~ 16.5 V, ±5V
Series:	--
Data Interface:	Parallel
Differential Output:	No
Output Type:	Voltage - Buffered
Settling Time:	5µs, 7µs
Number of D/A Converters:	8
Number of Bits:	8
Part Status:	Active
Packaging:	Tube

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AD7228ABPZ Data Acquisition - Digital to Analog Converters (DAC)

AD7228ABPZ devices are Data Acquisition (DA) digital-to-analog converters (DACs) that provide a highly-integrated solution for interfacing digital signals with the ‘real-world’ world of analog applications. The AD7228ABPZ family of devices are from Analog Devices and are uni-polar DACs with 14-bit resolution and good monotonicity. They are optimized for low power and low cost applications

Application Field for AD7228ABPZ

AD7228ABPZ converters are suitable for many different applications that require analog output for measurement and control. For example, the device can be used in industrial process control systems to convert digital signals from temperature, pressure, and flow sensors into analog signals that can be suitably monitored and controlled. Other applications include automotive engine control systems, cooling systems, humidity sensors, and a variety of other industrial use cases. The device can also be used in digital-to-analog audio applications, such as amplifiers, headphones, and sound systems.

Working Principle of AD7228ABPZ

The AD7228ABPZ devices are digital-to-analog converters that take digital signals in the form of a binary code and convert them into a proportional analog voltage or current. The conversion is done by virtue of a switched capacitor that switches at a fixed rate determined by the device\'s clock frequency. The binary code is converted into a series of voltages using the multiplexed resistor value selected from the range of resistors built into the device. Inside the device, the reference voltage is compared with the multiplexed resistor voltage, and the difference is then converted into a binary output. The output voltage is then amplified to produce the device\'s output voltage.The device is powered by a single 3V supply, allowing for a wide dynamic range of input signals and accurate conversion results. The device supports CMOS, LVCMOS, and LVDS logic levels and is designed with a slew-rate limiting input circuit. This helps to reduce noise levels and improves conversion accuracy.

Conclusion

The AD7228ABPZ is a digital-to-analog converter (DAC) with 14-bit resolution and good monotonicity, designed to interface digital signals with the \'real-world\' of analog applications. The converters are suitable for a variety of applications that require analog output, such as industrial process control systems, digital-to-analog audio applications, automotive engine control systems, and cooling systems. The device is powered by a single 3V supply, allowing for a wide dynamic range of input signals and accurate conversion results. The device supports CMOS, LVCMOS, and LVDS logic levels and is designed with a slew-rate limiting input circuit.

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