MAX167CEWG+

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The MAX167CEWG+ is an application specific integrated circuit (ASIC) that serves as an analog-to-digital converter (ADC), also referred to as an “Analog-to-digital Converter” (ADC/AUC). It is a highly integrated, high-performance data acquisition circuit that provides superior accuracy and speed. Its features make it suitable for a variety of applications such as industrial automation, embedded systems, medical devises, and automotive applications.

The MAX167CEWG+ contains an 8-bit high speed, low power, Sara-3A.0 compliant analog-to-digital converter (ADC) with an effective resolution of 14 bits. This integrated circuit (IC) comes in a 59-pin thin quad flat pack (TQFP) package, which is designed to meet the performance requirements of consumer, industrial and medical applications. This device also supports up to four external differential inputs for the conversion of analog signals to digital form.

The MAX167CEWG+ employs a ‘successive-approximation’ (SAR) ADC architecture. SAR-ADC works by comparing the input to a known reference voltage and updating the comparator and reference voltage. This process is repeated successively until the approximation of the voltage is achieved. The majority of the process occurs within very tight digital-to-analog (DAC) and comparator circuits, which is why this type of ADC is known as ‘successive-approximation’.

The SAR-ADC portion of the MAX167CEWG+ contains an analog input multiplexer, filter, analog-to-digital converter, along with an integrated data serializer. The data serializer consists of two serial communication interfaces: a two-wire synchronous serial (SPI) interface, and an optional four-wire synchronous serial (I2S) interface. The I2S is capable of carrying both control and data signals between the device and a Digital Signal Processor (DSP) or other C-row processing device.

The MAX167CEWG+ also uses an advanced low-power “on-chip” Analog-to-Digital Converter (ADC) calibration method, which adjusts the gain and offset of the internal DAC circuits based on the external reference signals fed into the device. This method provides a high degree of accuracy and stability, which is essential for reliable data acquisition. In addition, this device also contains circuitry to ensure minimized current consumption applications.

The MAX167CEWG+ is designed to meet the most demanding industrial, scientific, and medical applications where accuracy and speed are of the utmost importance. It is well-suited for use in applications such as multiphase motor control, laboratory equipment, avionics systems, test & measurement systems, medical imaging and monitoring systems. In addition, the device is fully-functional when used with a wide variety of signal sources, including thermocouples, strain gauges, optical sensors, and piezo-electric transducers.

The MAX167CEWG+ was the first application-specific integrated circuit (ASIC) with an effective resolution of 14 bits and its features make it one of the best-in-class Data Acquisition - Analog to Digital Converters (ADC) devices currently available. Its features include: high speed, low power, reliable data acquisition, low system latency, and support for up to four external differential inputs. Additionally, its advanced ‘on-chip’ calibration mechanism ensures even greater accuracy and stability, making the MAX167CEWG+ the ideal choice for data acquisition applications.

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