ADS8344 16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter | TI.com

ADS8344 (ACTIVE)

16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter

 

Description

The ADS8344 is an 8-channel, 16-bit, sampling Analog-to-Digital (A/D) converter with a synchronous serial interface. Typical power dissipation is 10mW at a 100kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 500mV and VCC , providing a corresponding input voltage range of 0V to VREF . The device includes a shutdown mode that reduces power dissipation to under 15µW. The ADS8344 is tested down to 2.7V operation.

Low power, high speed, and an on-board multiplexer make the ADS8344 ideal for battery-operated systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS8344 is available in a QSOP-20 or SSOP-20 package and is ensured over the –40°C to +85°C temperature range.

Features

  • PIN FOR PIN WITH ADS7844
  • SINGLE SUPPLY: 2.7V to 5V
  • 8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT
  • UP TO 100kHz CONVERSION RATE
  • 84dB SINAD
  • SERIAL INTERFACE
  • QSOP-20 AND SSOP-20 PACKAGES
  • APPLICATIONS
    • DATA ACQUISITION
    • TEST AND MEASUREMENT EQUIPMENT
    • INDUSTRIAL PROCESS CONTROL
    • PERSONAL DIGITAL ASSISTANTS
    • BATTERY-POWERED SYSTEMS

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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
ADS8344 Order now 16     100     8     Serial     -40 to 85     SSOP | 20
SSOP | 20    
8.40 | 1ku     3.2     20SSOP: 38 mm2: 5.3 x 7.2 (SSOP | 20)
20SSOP: 52 mm2: 6 x 8.65 (SSOP | 20)    
SAR     Pseudo-Differential
Single-Ended    
Multiplexed     Ext    
   
5.25     0     2.7     5.25     2.7     5.25     6     89     -90     Catalog    
ADS8166 Samples not available 16     250     8     Enhanced SPI
SPI    
-40 to 125     VQFN | 32     4.05 | 1ku     15     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     SAR     Pseudo-Differential
Single-Ended    
Multiplexed     Ext
Int    
Comparator     5     0     3     5.5     1.65     5.5     0.8     92     -110     Catalog    
ADS8167 Samples not available 16     500     8     Enhanced SPI
SPI    
-40 to 125     VQFN | 32     6.55 | 1ku       32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     SAR     Pseudo-Differential
Single-Ended    
Multiplexed     Ext
Int    
Comparator     5     0     3     5.5     1.65     5.5     0.8     92     -110     Catalog    
ADS8168 Samples not available 16     1000     8     SPI     -40 to 125