MAX147BEAP+

MAXIM INTEGRATED PRODUCTS  MAX147BEAP+  模数转换器, 高速, 12 bit, 133 kSPS, 单, 2.7 V, 5.25 V, SSOP

The 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.

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Supply voltage range is 2.7V to 5.25V

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Operating temperature range from -40°C to 85°C

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Requires an external reference

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Low power consumption of 1.2mA at 133Ksps and 54µA at 1Ksps, 3V supply

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Low power consumption of 1µA at power down mode

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SPI/QSPI/MICROWIRE/TMS320 compatible 4 wire serial interface

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Maximum relative accuracy INL is ±1LSB and maximum differential nonlinearity DNL is ±1LSB

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Gain temperature coefficient is ±0.25ppm/°C

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Accessing serial interface for on/off can cut supply current under 60µA at reduced sampling rates