ADV7125JSTZ330

Reference Type:	External, Internal
Base Part Number:	ADV7125
Supplier Device Package:	48-LQFP (7x7)
Package / Case:	48-LQFP
Operating Temperature:	0°C ~ 70°C
Architecture:	Current Source
INL/DNL (LSB):	±0.5, ±0.25
Voltage - Supply, Digital:	3 V ~ 3.6 V, 5V
Voltage - Supply, Analog:	3 V ~ 3.6 V, 5V
Series:	--
Data Interface:	Parallel
Differential Output:	Yes
Output Type:	Current - Unbuffered
Settling Time:	--
Number of D/A Converters:	3
Number of Bits:	8
Part Status:	Active
Packaging:	Tray

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The ADV7125JSTZ330 is a part of the data acquisition family, specifically a digital to analog converter (DAC). It provides a high quality solid state process control device, which is ideal for use in a variety of applications.The ADV7125JSTZ330 takes input in the form of digital data, typically delivered via a CAN bus. The device then combines this data with Reference voltage, providing a current mode output. The output current range is from 0mA to 20mA, perfect for typical 4-20mA sensors and actuators commonly used in process control devices. It is designed for use in harsh-environment applications such as the oil and gas, telecommunications and industrial markets.The ADV7125JSTZ330 has several features which help to protect the system from damage and assure accurate signal conversion. It comes with on-board current sensing, which helps to detect the signal that can be off-scale. In addition, the device also has protection against overload and ESD, thus ensuring reliable operation even in the event of surges or power interruptions. Its high current resolution also helps to ensure accurate signal conversion.In terms of working principle, the ADV7125JSTZ330 uses a two-stage operational amplifier to convert the digital signal into an analog output current. The two stages are the reference voltage stage and the current output stage. The reference voltage stage takes an input voltage and then multiplies this voltage by a reference voltage, in order to generate an overall gain coefficient. This coefficient is then used to determine the output current.The current output stage takes the reference voltage, and then combines it with the input digital signal, which is protected by a peak current limiting circuit. When the output current exceeds the protected current, the peak current limit (PCL) circuit will latch the signal, and protect the system from damage.The ADV7125JSTZ330 also boasts a high-impedance infrared diode (HID) which can detect interference signals that may cause damage to the system. The HID circuit helps to protect the system from overvoltage, ensuring accurate signal conversion.Overall, the ADV7125JSTZ330 is a great addition to any commercial process control environment, as it offers superior protection against damage as well as accurate signal conversion. The HID circuit also ensures that any interference signals are detected and neutralised. Furthermore, the device offers a very good current resolution, helping to guarantee accurate signal output.

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