MAX11607EUA+

Number of A/D Converters:	1
Base Part Number:	MAX11607
Supplier Device Package:	8-uMAX
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	2.7 V ~ 3.6 V
Voltage - Supply, Analog:	2.7 V ~ 3.6 V
Reference Type:	External, Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	MUX-S/H-ADC
Data Interface:	I²C
Input Type:	Differential, Single Ended
Number of Inputs:	2, 4
Sampling Rate (Per Second):	94.4k
Number of Bits:	10
Part Status:	Active
Packaging:	Tube

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Data Acquisition – Analog to Digital Converters (ADC)Analog to Digital Converters (ADCs) are utilized to convert analog signals into digital signals. ADC\'s are essential for data acquisition and signal processing, as most real-world signals are analog in nature and need to be converted for use in digital systems. An ADC of particular interest is the MAX11607EUA+, which is a high-resolution, 8-bit, successive approximation ADC. This section covers the various application fields of this ADC as well as its working principle.The MAX11607EUA+ covers a wide range of application fields due to its unique feature of 8-bit resolution. It is suitable for applications requiring the acquisition of either low or high-frequency analog signals. Examples include but are not limited to low frequency communication systems such as motor control, electrocardiograph acquisition, and seismology. For higher frequency applications, the ADC is suitable for audio, video, and data conversion. With a wide operating range all the way down to 3V, the MAX11607EUA+ is suitable for integration into battery powered devices as well as industrial applications requiring robust operation.Regarding the working principle of the MAX11607EUA+, the circuit is based on the classic successive approximation register (SAR) ADC architecture. In this architecture, an unknown voltage is applied to an analog switch, which connects to a reference capacitor. This reference capacitor is also connected to an internal comparator. The comparator then compares the voltage on the reference capacitor to that of the analog signal. Based on the comparison, the SAR sequentially adjusts the stored bit to match the analog signal. During each step of the process, the selection of the value stored in the SAR is determined by the comparison which is registered at the output of the comparator. This value is then conveyed to the output latch of the ADC. This cycle then repeats until the 8-bit resolution is achieved.In terms of power consumption, the MAX11607EUA+ is a very economical ADC due to load current saving features. These features enable the use of fewer power-consuming components, making the operations of the ADC much more economical. As can be seen, the input stage of the ADC utilizes a double-tail latch structure, which enables the analog voltage to be latched by both the positive and negative edges of the clock signal. Thus, when the analog voltage remains unchanged after the serial clock is activated and the output of the comparator remains low, the positive and negative clock signals are then shut off immediately which significantly reduces the load current.The MAX11607EUA+ also features a low-power self-calibration feature, consisting of an operational amplifier configured as an offset and gain error amplifier. This feature helps minimize the conversion errors of the ADC by correcting the gain and offset errors in each conversion cycle. This helps ensure accuracy of converted signals as the error is minimized.In conclusion, the MAX11607EUA+ is a high-resolution, 8-bit, successive approximation ADC suitable for a variety of applications ranging from low to high-frequency signals. With a wide operating range and versatile power-saving features, the ADC is an ideal choice for data acquisition and signal processing. It is an economic, reliable and highly accurate solution for a variety of analog signal acquisition needs.

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