GENERAL DESCRIPTION

The AD7769 is a complete, two-channel, 8-bit, analog I/O port. It has versatile input and output signal conditioning features that make it ideal for use in head-positioning servos in Winchester disk systems. It is equally suitable for floppy disk microstepping head positioning, other closed loop digital servo systems and general purpose 8-bit data acquisition.

FEATURES

Two-Channel, 8-Bit 2.5 μs ADC

Two 8-Bit, 2.5 μs DACs with Output Amplifiers

Span and Offset of ADC and DAC

Independently Adjustable

Low Power

APPLICATIONS

Winchester Disk Servo Controllers

Floppy Disk Microstepping

Closed Loop Servo Systems