ADS8327

2.7V~5.5V、16 位 500KSPS 串行 ADC

The is a low power, 16-bit, 500-kSPS analog-to-digital converter with a unipolar input. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold.

The ADS8328 is based on the same core and includes a 2-to-1 input MUX with programmable option of TAG bit output. Both the ADS8327 and ADS8328 offer a high-speed, wide voltage serial interface and are capable of chain mode operation when multiple converters are used.

These converters are available in a 16-lead TSSOP or 4×4 QFN packages and are fully specified for operation over the industrial –40°C to +85°C temperature range.

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2.7-V to 5.5-V Analog Supply, Low Power:

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10.6 mW 500 kHz, +VA = 2.7 V,

+VBD = 1.8 V

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500-kHz Sampling Rate

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Excellent DC Performance

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±1.5 LSB Typ, ±2 LSB Max INL

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±0.6 LSB Typ, ±1 LSB Max DNL

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16-Bit NMC Over Temperature

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±0.5 mV Max Offset Error at 2.7 V

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±1 mV Max Offset Error at 5 V

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Excellent AC Performance at fI = 10 kHz with 91 dB SNR, 100 dB SFDR, –96 dB THD

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Built-In Conversion Clock CCLK

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1.65 V to 1.5×+VA I/O Supply

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SPI/DSP Compatible Serial

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SCLK up to 50 MHz

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Comprehensive Power-Down Modes:

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Deep Power-Down

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Nap Power-Down

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Auto Nap Power-Down

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Unipolar Input Range: 0 V to VREF

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Software Reset

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Global CONVST Independent of CS

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Programmable Status/Polarity EOC/INT

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16-Pin 4×4 QFN or 16-Pin TSSOP Packages

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Multi-Chip Daisy Chain Mode

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Programmable TAG Bit Output

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Auto/Manual Channel Select Mode

* APPLICAONS

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Communications

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Transducer Interface

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Medical Instruments

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Magnetometers

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Industrial Process Control

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Data Acquisition Systems

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Automatic Test Equipment