ADS7864 500kHz, 12-Bit, 6-Channel Simultaneous Sampling Analog-To-Digital Converter | TI.com

ADS7864 (ACTIVE)

500kHz, 12-Bit, 6-Channel Simultaneous Sampling Analog-To-Digital Converter

 

Description

The ADS7864 is a dual 12-bit, 500kHz analog-to-digital (A/D) converter with 6 fully differential input channels grouped into three pairs for high speed simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the A/D converter. This provides excellent common-mode rejection of 80dB at 50kHz which is important in high noise environments.

The ADS7864 offers a parallel interface and control inputs to minimize software overhead. The output data for each channel is available as a 16-bit word (address and data). The ADS7864 is offered in a TQFP-48 package and is fully specified over the -40°C to +85°C operating range.

Features

  • 6 Simultaneous Sampling Channels
  • Fully Differential Inputs
  • 2µs Total Throughput per Channel
  • No Missing Codes
  • Parallel Interface
  • 1MHz Effective Sampling Rate
  • Low Power: 50mW
  • 6X FIFO
  • APPLICATIONS
    • Motor Control
    • Multi-Axis Positioning Systems
    • 3-Phase Power Control

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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
ADS7864
12    
500    
6    
Parallel    
-40 to 85    
TQFP | 48    
6.65 | 1ku    
50    
48TQFP: 81 mm2: 9 x 9 (TQFP | 48)    
SAR    
Differential    
Simultaneous Sampling    
Ext
Int    
   
2.5    
-2.5    
4.75    
5.25    
4.75    
5.25    
2    
71    
71.1    
-75    
Catalog    

Design tool

WEBENCH® Designer ADS7864