FEATURES
I Single linear DPP with 128 taps I End-to-end resistance of 10kΩ, 50kΩ or 100kΩ I 2-wire (I2C-like) interface I Fast Up/Down wiper control mode I Non-volatile wiper setting storage I Automatic wiper setting recall at power-up I Digital Supply range (VCC): 2.7V to 5.5V I Analog Supply range (V+): +8V to +16V I Low Standby Current: 15µA I 100 Year wiper setting memory I Industrial Temperature range: -40oC to +85oC I RoHS-compliant 10-pin MSOP package DESCRIPTION
The wiper setting can be stored in a 7-bit non-volatile Data Register (DR). The WCR is accessed via the 2-wire serial bus. Upon power-up, the WCR is set to mid-scale (1000000). After the power supply is stable, the contents of the DR are transferred to the WCR and the wiper is returned to the memorized setting. The CAT5132 has two voltage supplies: VCC, the digital supply and V+, the analog supply. V+ can be much higher than VCC, allowing for 16V analog operations. The CAT5132 can be used as a potentiometer or as a two-terminal variable resistor.
Catalyst Semiconductor
