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

ADS7864
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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

WEBENCH® Designer ADS7864



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
ADS7864 Order now 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     71.1     -75     Catalog