ADS8381 18 Bit 580KSPS parallel ADC | TI.com

ADS8381 (ACTIVE)

18 Bit 580KSPS parallel ADC

 

Description

The ADS8381 is an 18-bit, 580 kHz A/D converter. The device includes a 18-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8381 offers a full 18-bit interface, a 16-bit option where data is read using two read cycles, or an 8-bit bus using three read cycles.

The ADS8381 is available in a 48-lead TQFP package and is characterized over the industrial –40°C to 85°C temperature range.

Features

  • 580-kHz Sample Rate
  • 18-Bit NMC Ensured Over Temperature
  • Zero Latency
  • Low Power: 115 mW at 580 kHz
  • Unipolar Input Range
  • Onboard Reference Buffer and Conversion Clock
  • Wide Digital Supply
  • Flexible 8-/16-/18-Bit Parallel Interface
  • Pin Compatible With ADS8383
  • 48-Pin TQFP Package
  • APPLICATIONS
    • Medical Instruments
    • Optical Networking
    • Transducer Interface
    • High Accuracy Data Acquisition Systems
    • Magnetometers

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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
ADS8381 ADS8383
18     18    
580     500    
1     1    
Parallel     SPI    
-40 to 85     -40 to 85    
TQFP | 48     TQFP | 48    
24.49 | 1ku     27.72 | 1ku    
115     110    
48TQFP: 81 mm2: 9 x 9 (TQFP | 48)     48TQFP: 81 mm2: 9 x 9 (TQFP | 48)    
SAR     SAR    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
   
   
Ext     Ext    
Oscillator     Oscillator    
4.2     4.2    
0     0    
4.75     4.75    
5.25     5.25    
2.7     2.95    
5.25     5.25    
4     4    
88     87    
88     88    
-112     -112    
Catalog     Catalog