ADS8339 16-Bit, 250kSPS, Serial Interface Micropower, Miniature SAR ADC | TI.com

ADS8339 (ACTIVE)

16-Bit, 250kSPS, Serial Interface Micropower, Miniature SAR ADC

 

Description

The ADS8339 is a 16-bit, 250-kSPS, analog-to-digital converter (ADC). The device operates with a 2.25-V to 5.5-V external reference. The device includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit.

The device includes a 25-MHz, SPI-compatible serial interface. The interface is designed to support daisy-chaining or cascading of multiple devices. Furthermore, a busy indicator makes synchronizing with the digital host easy. The unipolar, single-ended input range for the device supports an input swing of 0 V to Vref.

The device is optimized for low-power operation and power consumption scales directly with speed. This feature makes the device attractive for lower speed applications. The ADS8339 is available in a VSSOP-10 package.

Features

  • Sample Rate: 250 kHz
  • 16-Bit Resolution
  • Zero Latency at Full Speed
  • Unipolar Single-Ended Input Range:
    • 0 V to Vref
  • SPI™-Compatible Serial Interface with Daisy-Chain Option
  • Uses Internal Clock for Conversion
  • Excellent Performance:
    • 93.6 dB SNR (typ) at 10-kHz Input
    • –106 dB THD (typ) at 10-kHz Input
    • ±2.0 LSB INL (max)
    • ±1.0 LSB DNL (max)
  • Low-Power Dissipation:
    • 17.5 mW (typ) at 250 kSPS
  • Power Scales Linearly with Speed:
    • 1.75 mW at 25 kSPS
  • Power Dissipation During Power-Down State:
    • 0.25 µW (typ)
  • Package: VSSOP-10

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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
ADS8339
16    
250    
1    
SPI    
-40 to 85    
VSSOP | 10    
3.50 | 1ku    
17.5    
10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    
SAR    
Single-Ended    
   
Ext    
Daisy-Chainable
Oscillator    
5.5    
0    
4.5    
5.5    
2.375    
5.5    
2    
93.8    
93.9    
-111    
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