MAX11261ENX+

Number of A/D Converters:	1
Supplier Device Package:	36-WLP (2.84x2.84)
Package / Case:	36-XFBGA, WLPBGA
Operating Temperature:	-40°C ~ 85°C
Features:	PGA
Voltage - Supply, Digital:	1.7 V ~ 3.6 V
Voltage - Supply, Analog:	2.7 V ~ 3.6 V
Reference Type:	External
Architecture:	Sigma-Delta
Series:	--
Ratio - S/H:ADC:	0:1
Configuration:	MUX-PGA-ADC
Data Interface:	I²C
Input Type:	Differential
Number of Inputs:	6
Sampling Rate (Per Second):	16k
Number of Bits:	24
Part Status:	Active

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Data Acquisition - Analog to Digital Converters (ADC)

Analog-to-digital converters (ADCs) are electronic devices used for converting analog signals into digital information. These devices are commonly used in a wide range of applications like automobile industries, medical instrumentation and industrial control systems. An ADC such as the MAX11261ENX+ ADC is a modern and powerful analog-to-digital converter that combines precision, low power and high speed.The MAX11261ENX+ is a low-power, 12-bit, 1MSPS successive-approximation ADC with true single-supply operation. It includes an internal reference and two internal reference buffers and provides power-saving features such as adjustable sleep current, dedicated standby pin and a low-power shutdown mode. The supply voltage range of 2.7V to 5.5 volt is suitable for many battery-powered applications. The chip has an input voltage range of 0V to VREF, allowing ±5V bipolar signals to be directly converted.The device operates from an internal oscillator and supports sample rates of up to 1MSPS. The internal track-and-hold circuit has a wide input frequency range of 0.1Hz to 4MHz. The chip has an end-of-conversion (EOC) output that signals the completion of a conversion cycle. The chip has an 8-bit digital output interface which supports a range of transfer formats including SPI and I2C.The power efficiency of the chip is maximized by its wide variety of features. It uses a switched-capacitor technique which reduces the power consumed during conversion. The chip also employs a charge-redistribution technique which reduces the power consumed between conversion cycles. The use of advanced design methods and low-power logic reduces the power further.The working principle of the MAX1126ENX+ is based on the standard successive-approximation method. In this process, the incoming analog signal is compared to a reference voltage, which is created by the internal reference buffer. If the incoming signal is lower than the reference, a lower-bit will be added to the digital code and the remaining higher-bits will stay the same. If the incoming signal is higher, a higher-bit will be added to the digital code. This process is repeated stepwise until the digital output is generated. The entire process is then ended with the EOC output.In summary, the MAX11261ENX+ is a versatile and powerful analog-to-digital converter which provides precision and low power consumption. Its wide range of features and working principle make it suitable for a variety of applications and enable reliable and accurate data acquisition.

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