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

DESCRIPTION
The ADS7864 is a dual 12-bit, 500kHz
analog-to-digital (A/D) converter with 6 fully differen·
tial 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.