MAX1108CUB+

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The MAX1108CUB+ Analog to Digital Converter (ADC) is versatile high performance 8-bit A/D converter with integrated sample and hold amplifier (SHA) and onboard reference. It is designed with integrated charge-pump circuitry and programmable gains that cover a wide variety of signal conditioning and power-supply requirements. It has a wide input range of 0.4 V to 5.5 V and an accuracy of 0.4 % FSR for an input voltage range of 0.3 V to 4 V. It is ideal for data acquisition, instrumentation, next-generation aerospace and military applications, medical and consumer electronics applications.

The MAX1108CUB+ is a low power, single-chip A/D converter that uses a unique dual-slope architecture to achieve high-resolution conversions. It has a 16x gain programmable architecture with a maximum gain of 15 for small signals and a dynamic range of 8-bits. It takes up to 10μs for conversion and delivers a fast settling time along with low power consumption. It also has a synchronous serial interface (SPI) and a 16-bit input/output port that allow simple and fast interfacing with microcontrollers and other digital devices.

The MAX1108CUB+ performs the majority of signal conditioning operations prior to and during the conversion, enabling improved system performance, reduced component count, and lower power consumption. The integrated SHA allows the analog signal to be sampled and held accurately before feeding it into the ADC. The Charge-Pump circuits allow the converter to be powered from a 3.3V or 5V supply, eliminating the need for regulated supplies and enabling simpler system design. The programmable gains enable wide signal conditioning requirements to be met and maximise accuracy for low signal levels.

The on-board reference is used to provide a stable, low drift reference voltage for accurate and repeatable conversions. The on-board reference can be further adjusted for offset and gain accuracy, allowing the MAX1108CUB+ to achieve resolutions of 0.0004 % FS, from 0.3V to 4V input voltage range. It also features comprehensive self-calibration features, with single, multiple and double reference calbiration capabilities.

The MAX1108CUB+ also provides eight low pass filters, which allow an extremely low output noise and configuration flexibility. This makes the MAX1108CUB+ ideal for applications which require low noise and excellent signal-chain dynamic performance. It also features an onboard temperature compensation voltage level, which allows operation at extreme temperatures, with output accuracy maintained.

In summary, the MAX1108CUB+ is a high performance low power A/D converter, suitable for a wide range of data acquisition, instrumentation and signal conditioning applications. It features wide input range, 16x gain programmable architecture, onboard reference, synchronous serial interface and templates for signal conditioning and power-supply requirements. It also has on-board temperature compensation and advanced TMNEST calibration capabilities, to ensure extremely accurate and repeatable conversions.

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