LTC1694 UUWUAPPLICATIO S I FOR ATIOComparison of SMBus Waveforms for the LTC1694 vs Resistor Pull-Up LTC1694 LTC1694 1V/DIV 1V/DIV RPULL-UP RPULL-UP = 15.8k = 10.5k VCC = 5V 1µs/DIV VCC = 3.3V 1µs/DIV CLD = 200pF CLD = 200pF fSMBus = 100kHz 1694 TA03 fSMBus = 100kHz 1694 TA04 RELATED PARTSPART NUMBERDESCRIPTIONCOMMENTS LTC1380/LTC1393 8-Channel/4-Channel Analog Multiplexer with SMBus Interface Low RON and Low Charge Injection LTC1427-50 10-Bit Current DAC with SMBus Interface 50µA Full-Scale Current LTC1623 Dual High Side Switch Controller with SMBus Interface 8 Selectable Addresses/16 Channel Capability LTC1663 SMBus Interface 10-Bit Rail-to-Rail Micropower DAC DNL < 0.75LSB Max, 5-Lead SOT-23 Package LTC1694-1 SMBus/I2C Accelerator Includes AC Pull-Up Current Only LTC1695 SMBus/I2C Fan-Speed Controller in SOT-23 0.75Ω PMOS Linear Regulator with 180mA Output Current, SMBus-Controlled 6-Bit DAC LTC1710 SMBus Dual High Side Switch Two 0.4Ω, 300mA N-Channel Switches LTC1759 Single Chip Smart Battery Charger Controller with SMBus Interface 94% Efficiency with Input Current Limiting, Up to 8A ICHG LT1786F SMBus-Controlled CCFL Switching Regulator 1.25A, 200kHz, Floating or Grounded Lamp Configurations LTC4300A-1/LTC4300A-2 Hot Swappable 2-Wire Bus Buffers Provides Capacitance Buffering, SDA and SCL Hot Swapping, Level Shifting 1694fa LT/TP 0304 REV A 1K • PRINTED IN USA 8 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 1998
