ADS8505 具有并行接口 2.5V 内部基准的 16 位 250kHz CMOS 模数转换器 | 德州仪器

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具有并行接口 2.5V 内部基准的 16 位 250kHz CMOS 模数转换器

具有并行接口 2.5V 内部基准的 16 位 250kHz CMOS 模数转换器 - ADS8505


The ADS8505 is a complete 16-bit sampling A/D converter using state-of-the-art CMOS structures. It contains a complete 16-bit, capacitor-based, SAR A/D with S/H, reference, clock, interface for microprocessor use, and 3-state output drivers.

The ADS8505 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors provide an industry standard ±10-V input range, while the innovative design allows operation from a single +5-V supply, with power dissipation under 100 mW.

The ADS8505 is available in 28-pin SOIC and 28-pin SSOP packages, both fully specified for operation over the industrial -40°C to 85°C temperature range.


  • 105dB SFDR at 250-kHz Sample Rate
  • Standard ±10-V Input Range
  • ±1.5 LSB Max INL
  • ±1 LSB Max DNL, 16-Bits No Missing Codes
  • ±2 mV Max Bipolar Zero Error With ±0.4 PPM/°C Drift
  • ±0.1% FSR Max Full-Scale Error With ±2 PPM/°C Drift
  • Single 5-V Supply Operation
  • Pin-Compatible With ADS7805 (Low Speed) and 12-Bit ADS8504/7804
  • Uses Internal or External Reference
  • Full Parallel DataOutput
  • 70-mW Typ Power Dissipation at 250 KSPS
  • 28-Pin SSOP and SOIC Packages
    • Industrial Process Control
    • Data Acquisition Systems
    • Digital Signal Processing
    • Medical Equipment
    • Instrumentation

WEBENCH® Designer ADS8505


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Part number 立即下单 Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
ADS8505 立即下单 16     250     1     Parallel     -40 to 85     SOIC | 28
SSOP | 28    
9.71 | 1ku     155     28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)
28SSOP: 54 mm2: 5.3 x 10.2 (SSOP | 28)    
SAR     Single-Ended         Ext
Oscillator     10     -10     4.75     5.25     4.75     5.25     1.5     88     -105     Catalog