ADS8505 16-Bit 250kHz CMOS Analog-to-Digital Converter With Parallel Interface 2.5V Internal Reference | TI.com

ADS8505 (ACTIVE)

16-Bit 250kHz CMOS Analog-to-Digital Converter With Parallel Interface 2.5V Internal Reference

 

Description

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.

Features

  • 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
  • APPLICATIONS
    • Industrial Process Control
    • Data Acquisition Systems
    • Digital Signal Processing
    • Medical Equipment
    • Instrumentation

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Parametrics Compare all products in Precision ADCs (<=10MSPS)

 
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)
SINAD (dB)
SNR (dB)
THD (Typ) (dB)
Rating
ADS8505
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
Int    
Oscillator    
10    
-10    
4.75    
5.25    
4.75    
5.25    
1.5    
88    
88    
-105    
Catalog    

Design tool

WEBENCH® Designer ADS8505