ADS8517

16位200 kSPS时，低功耗，采样模拟数字转换器，内置电压基准及并行/串行接口 16-Bit, 200-kSPS, Low-Power, Sampling ANALOG-TO-DIGITAL CONVERTER with Internal Reference and Parallel/Serial Interface

The is a complete low-power, single 5-V supply, 16-bit sampling analog-to-digital A/D converter. It contains a complete, 16-bit, capacitor-based, successive approximation register SAR A/D converter with sample-and-hold, clock, reference, and data interface. The converter can be configured for a variety of input ranges including ±10 V, 4 V, and 5 V. For most input ranges, the input voltage can swing to 25 V or –25 V without damage to the device.

An SPI-compatible serial interface allows data to be synchronized to an internal or external clock. A full parallel interface using the selectable BYTE pin is also provided to allow the maximum system design flexibility. The ADS8517 is specified at a 200-kHz sampling rate over the industrial -40°C to +85°C temperature range.

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200-kHz Minimum Sampling Rate

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4-V, 5-V, and ±10-V Input Ranges with High-Impedance Input

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±1.5 LSB Max INL

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+1.5/-1 LSB Max/Min DNL, 16 Bits NMC

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±2-mV Max BPZ, ±0.6 ppm/°C BPZ Drift

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±2-mV Max UPZ, ±0.15 ppm/°C UPZ Drift

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88.8-dB SINAD with 10-kHz Input

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SPI-Compatible Serial Output With Daisy-Chain TAG, SPI Master/Slave Feature

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Full Parallel Interface

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Binary Twos Complement or Straight Binary Output Code Formats

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Single 4.5-V to 5.5-V Analog Supply, 1.65-V to 5.5-V Interface Supply

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Uses Internal 2.5-V or External Reference

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No External Precision Resistors Required

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Low Power Dissipation ADC+REF+BUF:

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47 mW Typ, 60 mW Max at 200 kSPS

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50-µW Max Power-Down Mode

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Pin-Compatible with 16-Bit ADS7807 and ADS8507, and 12-Bit ADS7806 and ADS8506

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SO-28 and TSSOP-28 Packages

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APPLICA ONS

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Portable Test Equipment

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USB Data Acquisition Module

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Medical Equipment

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Industrial Process Control

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Digital Signal Processing

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Instrumentation

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