DESCRIPTION
The CAT521 is a 8-bit digitally-programmable potentiometer (DPP™) configured for programmable voltage and DAC-like applications. Intended for final calibration of products such as camcorders, fax machines and cellular telephones on automated high volume production lines, it is also well suited for self-calibrating systems and for applications where equipment which requires periodic adjustment is either difficult to access or in a hazardous environment.

FEATURES
■ 8-bit DPP configured as a programmable voltage source in DAC-like applications
■ Buffered wiper output
■ Non-volatile NVRAM memory wiper storage
■ Output voltage range includes both supply rails
■ 1 LSB accuracy, high resolution
■ Serial Microwire-like interface
■ Single supply operation: 2.7V – 5.5V
■ Setting read-back without effecting outputs

APPLICATIONS
■ Automated product calibration
■ Remote control adjustment of equipment
■ Offset, gain and zero adjustments in self-calibrating and adaptive control systems
■ Tamper-proof calibrations
■ DAC (with memory) substitute