Аналого-цифровые преобразователи (АЦП) MAX147BCAP+

АЦП , высокоскоростной, 12 бит, 133 Квыборок/с, Дифференциальный, Несимметричный, SPI, Однополярный

The MAX147BCAP+ is a +2.7V, low power, 8-channel, serial 12bit analogue to digital converter (ADC) in 20 pin SSOP package. This 12bit data acquisition system combine an 8-channel multiplexer, high bandwidth track/hold and serial interface with high conversion speed and low power consumption. The analogue inputs are software configurable for unipolar/bipolar and single ended/differential operation. This device use either the internal clock or an external serial interface clock to perform successive approximation analogue to digital conversion and have a reference buffer amplifier with a ±1.5% voltage adjustment range. It provides a hard wired SHDN (complimentary) pin, a software selectable power-down feature which can be programmed to automatically shut down at the end of a conversion. Accessing the serial interface automatically powers up the device and the quick turn-on time allows it to be shut down between all conversions.

• Supply voltage range is 2.7V to 5.25V
• Operating temperature range from 0°C to 70°C
• Requires an external reference
• Low power consumption of 1.2mA at 133Ksps and 54µA at 1Ksps, 3V supply
• Low power consumption of 1µA at power down mode
• SPI
• QSPI
• MICROWIRE
• TMS320 compatible 4 wire serial interface
• Maximum relative accuracy (INL) is ±1LSB and maximum differential nonlinearity (DNL) is ±1LSB

• Gain temperature coefficient is ±0.25ppm
• °C
• Accessing serial interface for on
• off can cut supply current under 60µA at reduced sampling rates

Области применения

Обработка Сигнала, Переносные Устройства