ADS8506 12-Bit 40KSPS Analog-to-Digital Converter With Serial Interface and Reference Parallel | TI.com

ADS8506 (ACTIVE) 12-Bit 40KSPS Analog-to-Digital Converter With Serial Interface and Reference Parallel

 

Description

The ADS8506 is a complete low power, single 5-V supply, 12-bit sampling analog-to-digital (A/D) converter. It contains a complete 12-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 converter.

A SPI compatible serial interface allows data to be synchronized to an internal or external clock. A full parallel interface with BYTE select is also provided to allow the maximum system design flexibility. The ADS8506 is specified at 40 kHz sampling rate over the industrial –40°C to 85°C temperature range.

Features

  • 40-kHz Min Sampling Rate
  • 4-V, 5-V, and ±10-V Input Ranges
  • 73.9-dB SINAD with 10-kHz Input
  • ±0.45 LSB Max INL
  • ±0.45 LSB Max DNL, 12-Bit No Missing Codes
  • ±5-mV BPZ, ±0.5 PPM/°C BPZ Drift
  • SPI Compatible Serial Output With Daisy-Chain (TAG), SPI Master/Slave Feature
  • Single 5-V Analog Supply
  • Pin-Compatible With ADS7806 and 16-Bit ADS7807/8507
  • Uses Internal or External 2.5-V Reference
  • Low Power Dissipation
    • 24 mW Typ, 30 mW Max at 40 KSPS
  • 50-µW Max Power Down Mode
  • 28-Pin SO Package
  • Full Parallel Interface
  • 2’s Comp or BTC Output Code
  • APPLICATIONS
    • Industrial Process Control
    • Test Equipment
    • Medical Equipment
    • Data Acquisition Systems
    • Digital Signal Processing
    • Instrumentation

QSPI, SPI are trademarks of Motorola.

WEBENCH® Designer ADS8506



Parametrics

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Part number Order 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
ADS8506 Order now 12     40     1     Parallel
SPI    
-40 to 85     SOIC | 28     4.42 | 1ku     155     28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)     SAR     Single-Ended         Ext
Int    
Daisy-Chainable
Oscillator    
10     -10     4.75     5.25     4.75     5.25     0.45     74     -96     Catalog