SWW1156-223

The SWW1156-223 is one member of the SWW1156 family which is designed as the quad digitally-controlled (XDCP) potentiometer that can be used as a three-terminal potentiometer or as a two terminal variable resistor in a wide variety of applications including the programming of bias voltages, the implementation of ladder networks, and three resistor programmable networks. And this device is implemented using 255 resistive elements in a series array, and has an associated volatile Wiper Counter Register (WCR).

Features of the SWW1156-223 are:(1)Quad solid state potentiometer; (2)256 Resistor tap points-0.4% resolution; (3)2-wire serial interface for Write, Read, and transfer operations of the potentiometer; (4)Up/Down interface for individual potentiometer wipers; (5)Wiper resistance, 40 typical; (6)Non-volatile storage of wiper positions; (7)Power On Recall Loads saved wiper position on Power Up; (8)Standby Current < 20uA Max; (9)Maximum Wiper Current: 3mA; (10)VCC: 2.7V to 5.5V operation; (11)2.8k, 10k,  50k, 100k version of total pot resistance; (12)Endurance: 100,000 Data changes per bit per register; (13)100 yr. data retention; (14)24-Lead TSSOP.

The absolute maximum ratings of the SWW1156-223 can be summarized as:(1)Temperature under bias:65°C to +135°C;(2)Storage temperature:65°C to +150°C;(3)Voltage on SCK, SCL or any address input with respect to Vss: -1 V to +7 V;(4)Voltage on V+ (referenced to Vss): +7 V;(5)Voltage on V- (referenced to Vss): -7 V;(6)(V+) - (V-): 10 V;(7)Lead temperature (soldering, 10 seconds): 300°C.

The electrical characteristics of SWW1156-223 can be summarized as:(1)Wiper current:3 to +3 mA;(2)Input Offset Voltage: 1 to 2 mV;(3)Input Offset Voltage Temperature Coefficient: -10 V/°C;(4)Input bias current: 50 pA;(5)Input offset current: 25 pA;(6)Common mode rejection ratio: 70 dB;(7)Power supply rejection ratio: 70 dB;(8)Large signal voltage gain: 30 to 50 V/mV;(9)Gain-bandwidth prod: 1.0 MHz;(10)Slew rate: 1.5 V/sec. If you want to know more information such as the electrical characteristics about SWW1156-223, please download the datasheet in www.seekic.com or www.chinaicmart.com.