IDTADC1210S080F2-DB

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The flagship product of IDT ADC series is the IDTADC1210S080F2-DB. It is a 12-bit 8-channel single-ended successive approximation register (SAR) analogue-to-digital converter (ADC). It is designed to be integrated into various test and measurement applications, from defence and avionic systems, biomedical data acquisition and process control, to imaging, communication equipments, automotive, and industrial automation. This high-speed and high-accuracy analog-to-digital converter typically utilizes a very low power application and provides excellent precision performance.

This ADC generally features an input packing capability in increasing resolution and a 4 (CMOS/LVDS)-to-8 (QAM/CDS)-channel feature. It also utilizes digital noise filtering, increases accuracy and greatly reduces system power consumption. The new ADC design has highest accuracy on its 12-bit second-order sigma-delta modulator architecture, with an internal low power 16-bit PLL. It also includes a low power 2.25 V reference and maximum sampling frequency of 520 MSPS. The product requires less than 240 mW typ of power consumption and can operate at 1.2 V supply voltage, while typical single-ended analog inputs of ±0.065 V is also supported.

The ADC’s operation is based on the successive approximation method typically used in modern A/D converters. The successive approximation method is a method for encoding absolute values of time-varying voltage signals. It works by comparing the input voltage value with a set of reference voltages and then using binary logic to determine which reference voltage is closest to the voltage of the input signal. This process is repeated several times until the closest voltage is found. When the conversion is complete, the result is output as a binary number that is a representation of the input signal’s voltage.

The IDTADC1210S080F2-DB also includes analog input protection circuitry to protect against ESD, transient voltage events, and overvoltage conditions. For analog input signals, it automatically ranges the differential input voltage from 0V to the reference voltage. This enables the ADC to maintain a good signal-to-noise ratio throughout the entire input range. Furthermore, digital output codes are also provided, allowing for the conversion of one or more signal channels simultaneously.

The ADC also includes advanced features such as programmable nonlinear processing, coupled with the internal digital signal processor (DSP) supporting variable reference voltage, allowing for the implementation of very complex functions. An external I2C bus is provided, which allows the user to control the behavior of the ADC, both in the analog and digital domains, without the need for external control circuitry. Finally, the on-chip temperature sensor is also used for temperature compensation.

The IDTADC1210S080F2-DB is an application-specific ADC and is purpose-built for a wide variety of applications. It is an ideal choice for applications with high speed, high accuracy, or low power requirements. It is a great solution for military, industrial, medical, and aerospace applications due to its precision and reliability. Additionally, it can be used for data acquisition systems in high-end laboratory instrumentation, as well as energy-efficient applications in energy harvesting systems.

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