MAX1081ACUP

Number of A/D Converters:	1
Base Part Number:	MAX1081
Supplier Device Package:	20-TSSOP
Package / Case:	20-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	0°C ~ 70°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:	SPI
Input Type:	Pseudo-Differential, Single Ended
Number of Inputs:	4, 8
Sampling Rate (Per Second):	300k
Number of Bits:	10
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)

MAX1081ACUP is an 8-bit analog-to-digital converter (ADC) designed to simplify analog-to-digital conversions. It features two multiplexers, one for the input channel and one for the reference voltage, and also includes a high speed, low noise and low power 8-bit successive approximation ADC. Its key characteristics include improved linearity and low power consumption, making it ideal for use in a variety of applications.

Application Field

MAX1081ACUP can be used in a variety of applications, from medical imaging and remote sensing to automotive and industrial control systems. It has been used in a variety of medical imaging and remote sensing applications including radiation monitors, multi-energy X-ray detection, ultrasonics, and photo-acoustic imaging. Additionally, it has found use in automotive and industrial applications such as engine control, temperature sensing, and industrial process control. It is also used in various low power and embedded applications such as battery monitoring and remote monitoring systems.

Working Principle

The MAX1081ACUP utilizes a differential, NDAC-type successive approximation ADC architecture. It operates in two cycles, sample and hold and conversion. During the sample and hold phase, the input voltage is sampled by the input multiplexers, the analog switch and a sample and hold capacitor. Feedback from the reference multiplexer is used to sample the input voltage and the analog-to-digital conversion begins. The successive approximation algorithm is then used to convert the sampled digital value into a binary number. The digital output is then sent to a digital-to-analog converter for display as most converters have digital outputs.The MAX1081ACUP utilizes a first-order switched capacitor topology. An internal clock is used to time the switching of the analog input and a capacitor is charge-balanced after the sampling cycle. The successive approximation algorithm is continuously tracking the input analog signal until the value is within a predetermined accuracy. The 8-bit resolution of the MAX1081ACUP offers improved linearity and dynamic range and can handle frequencies up to 200kHz. Additionally, it offers a low power consumption, making it ideal for use in portable or low power applications.

Conclusion

The MAX1081ACUP is an 8-bit analog-to-digital converter designed to simplify analog-to-digital conversions. It features two multiplexers, one for the input channel and one for the reference voltage, and an 8-bit successive approximation algorithm. It is used in a variety of applications, from medical imaging and remote sensing to automotive and industrial control systems. Additionally, it offers improved linearity, low power consumption and a dynamic range of up to 200kHz, making it ideal for use in a number of applications.

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