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 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
ADS8344 ADS8166 ADS8167 ADS8168 ADS8331 ADS8332
16     16     16     16     16     16    
100     250     500     1000     500     500    
8     8     8     8     4     8    
Serial     SPI     SPI     SPI     SPI     SPI    
-40 to 85     -40 to 125     -40 to 125     -40 to 125     -40 to 85     -40 to 85    
SSOP | 20
SSOP | 20    
VQFN | 32     VQFN | 32     VQFN | 32     TSSOP | 24
VQFN | 24    
TSSOP | 24
VQFN | 24    
8.40 | 1ku     4.05 | 1ku     6.55 | 1ku     9.95 | 1ku     5.25 | 1ku     5.00 | 1ku    
3.2     15       30     14.2     14.2    
20SSOP: 38 mm2: 5.3 x 7.2 (SSOP | 20)
20SSOP: 52 mm2: 6 x 8.65 (SSOP | 20)    
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     32VQFN: 25 mm2: 5 x 5 (VQFN | 32)     24TSSOP: 50 mm2: 6.4 x 7.8 (TSSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
24TSSOP: 50 mm2: 6.4 x 7.8 (TSSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
SAR     SAR     SAR     SAR     SAR     SAR    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Pseudo-Differential
Single-Ended    
Multiplexed     Multiplexed     Multiplexed     Multiplexed     Multiplexed     Multiplexed    
Ext     Ext
Int    
Ext
Int    
Ext
Int    
Ext     Ext    
   
Comparator
Enhanced SPI    
Comparator
Enhanced SPI    
Comparator     Daisy-Chainable     Daisy-Chainable    
5.25     5     5     5     4.2     4.2    
0     0     0     0     0     0    
2.7     3     3     3     2.7     2.7    
5.25     5.5     5.5     5.5     5.5     5.5    
2.7     1.65     1.65