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CAT511

Part Number	CAT511
Manufacturer	Catalyst Semiconductor
Description	8-Bit Digital POT with Independent Reference Inputs
Published	Mar 23, 2005
Detailed Description	Advanced Information CAT511 8-Bit Digital POT with Independent Reference Inputs FEATURES s Output settings retained wit...
Datasheet	CAT511 PDF File

Overview

Advanced Information CAT511 8-Bit Digital POT with Independent Reference Inputs FEATURES s Output settings retained without power s Output range includes both supply rails s Programming voltage generated on-chip 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 The CAT511 is an 8-Bit Memory DAC designed as an electronic replacement for mechanical potentiometers and trim pots.
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.
The CAT511 consists of a programmable DAC with independent high and low reference inputs and is capable of a rail to rail output swing.
Output settings, stored non-volatile EEPROM memory, are not lost when the device is powered down and are automatically reinstated when power is returned.
The output can be dithered to test new output values without effecting the stored setting and can be read back without disturbing the DAC’s output.
FUNCTIONAL DIAGRAM VDD Control of the CAT511 is accomplished with a simple 3 wire serial interface.
A Chip Select pin allows several CAT511's to share a common serial interface and communications back to the host controller is via a single serial data line thanks to the CAT511’s Tri-Stated Data Output pin.
A RDY/BSYoutput working in concert with an internal low voltage detector signals proper operation of EEPROM Erase/Write cycle.
The CAT511 operates from a single 3–5 volt power supply.
The high voltage required for EEPROM Erase/ Write operations is generated on-chip.
The CAT511 is available in the 0°C to 70°C...

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