AD7818ARMZ

AD7818 is a 10bit, single channel analog-to-digital converter (ADC) with an on-chip temperature sensor that can operate from a single 2.7V to 5.5V power supply. Each device contains a 9μs successive approximation converter based around a capacitor digital-to-analogue converter (DAC), an on chip temperature sensor with an accuracy of ±2°C, an on-chip clock oscillator, inherent track-and-hold functionality and an on-chip reference (2.5V). It has a flexible serial interface that allows easy interfacing to most microcontrollers. The interface is compatible with the Intel 8051, Motorola SPI and QSPI, and National Semiconductors MICROWIRE protocols. Typical applications include data acquisition systems with ambient temperature, monitoring, industrial process control, automotive and battery charging applications.

• 10bit ADC with 9μs conversion time
• On-chip temperature sensor: resolution of 0.25°C, ±2°C error from -40°C to +85°C
• Inherent track-and-hold functionality
• On-chip reference (2.5V ± 1%)
• Over temperature indicator and flexible serial interface
• Automatic power-down at the end of a conversion
• 57dB min signal-to-(noise + distortion) ratio, -65db max THD at -75dB typ, ±1LSB max DNL
• ±10LSB max gain error, ±4LSB max offset error and 30ppm/°C typ temperature coefficient
• 8 lead MSOP package
• Operating temperature range from -40 to 85°C

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