ADS8517IB屬于集成電路（IC）的模數轉換器（ADC）。由美國德州儀器公司制造生產的ADS8517IB模數轉換器（ADC）模數轉換器（ADC、A/D 或 A 轉 D）對模擬信號進行采樣，例如由麥克風采集的聲音或傳感器的輸出，然后將其轉換為數字信號。一般來說，數字輸出是二進制補碼二進制數，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數轉換器可按照位數、采樣率、輸入數、接口、轉換器數和架構（例如自適應增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進行選擇。

1FEATURES

23· 200-kHz Minimum Sampling Rate

· 4-V, 5-V, and ±10-V Input Ranges with

High-Impedance Input

· ±1.5 LSB Max INL

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

· ±2-mV Max BPZ, ±0.6 ppm/°C BPZ Drift

· ±2-mV Max UPZ, ±0.15 ppm/°C UPZ Drift

· 88.8-dB SINAD with 10-kHz Input

· SPI?-Compatible Serial Output With

Daisy-Chain (TAG), SPI Master/Slave Feature

· Full Parallel Interface

· Binary Twos Complement or Straight Binary

Output Code Formats

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

5.5-V Interface Supply

· Uses Internal 2.5-V or External Reference

· No External Precision Resistors Required

· Low Power Dissipation (ADC+REF+BUF):

– 47 mW Typ, 60 mW Max at 200 kSPS

· 50-mW Max Power-Down Mode

· Pin-Compatible with 16-Bit ADS7807 and

ADS8507, and 12-Bit ADS7806 and ADS8506

· SO-28 and TSSOP-28 Packages

APPLICATIONS

· Portable Test Equipment

· USB Data Acquisition Module

· Medical Equipment

· Industrial Process Control

· Digital Signal Processing

· Instrumentation

DESCRIPTION

The ADS8517 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.