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.