CAT522 Datasheet PDF | Catalyst Semiconductor

Catalyst Semiconductor CAT522

The CAT522 is a dual 8-Bit Memory DAC designed as an electronic replacement for mechanical potentiometers and trim pots. The CAT522 offers 2 independently programmable DACs each having its own reference inputs and each capable of rail to rail output swing. Each output can be dithered to test new output values without effecting the stored settings FUNCTIONAL DIAGRAM VDD and stored settings can be read back without disturbing the DAC’s output.

Part No.	CAT522
Datasheet	CAT522 Download
Manufacturer	Catalyst Semiconductor
Description	8-Bit Dual Digital POT With Independent Reference Inputs
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FEATURES

s Buffered Outputs s Output settings retained without power s Independent Reference Inputs s Output range includes both supply rails s Programming voltage generated on-chip s 2 independently addressable outputs s Serial µP interface s Single supply operation: 2.7V-5.5V

APPLICATIONS

s Automated product calibration. s Remote control adjustment of equipment s Offset, gain and zero adjustments in Self- Calibrating and Adaptive Control systems. s Tamper-proof calibrations.

DESCRIPTION

Intended for final calibration of products such as camcorders, fax machines and cellular telephones on automated high volume production lines and systems capable of self calibration, it is also well suited for applications were equipment requiring periodic adjustment is either difficult to access or located in a hazardous environment. Outputs are buffered by rail to rail OP AMPS Output settings, stored in non-volatile EEPROM memory, are not lost when the device is powered down and are automatically reinstated when power is returned.