FEATURES

4 INPUT CHANNELS

FULLY DIFFERENTIAL INPUTS

2μs TOTAL THROUGHPUT PER CHANNEL

GUARANTEED NO MISSING CODES

PARALLEL INTERFACE

1MHz EFFECTIVE SAMPLING RATE

LOW POWER: 40mW

APPLICATIONS

MOTOR CONTROL

MULTI-AXIS POSITIONING SYSTEMS

3-PHASE POWER CONTROL

DESCRIPTION

The ADS7862 is a dual 12-bit, 500kHz analog-to-digital

converter (A/D) with 4 fully differential input channels grouped

into two 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 ADS7862 offers parallel interface and control inputs to

minimize software overhead. The output data for each channel

is available as a 12-bit word. The ADS7862 is offered in an

TQFP-32 package and is fully specified over the –40°C to

+85°C operating range.