Serial Bus Buffers, Extenders and Accelerators

The Analog Devices family of I2C solutions support hot swappable, 2-wire bidirectional bus buffers to allow I/O card insertion into a live backplane without corruption of the data and clock busses. Additional supported 2-wire buses include SMBus, PMBus, the ATCA intelligent platform management bus (IPMB), and the HDMI DDC bus. I2C/SMBus Accelerators improve bus transitions to allows multiple device connections or a longer, more capacitive interconnect, without compromising slew rates or bus performance. ADI's software-programmable and pin-selectable I2C multiplexers help resolve I2C address limitations, increase fan-in or fan-out, and integrate bus buffers and rise time accelerators for an all-in-one solution. Resistor configurable I2C address translators can be configured with over 100 unique slave addresses to allow multiple slave devices with the same address to coexist on the same bus.

Serial Bus Buffers, Extenders and Accelerators

  Hold Shift Key for secondary sorting
SortOrderPart#Number of SuppliesProtocols SupportedCommentsLevel TranslationI2C Hot SwappableStuck BusEnableESD Protection
(V)
Price (1000+)
($ US)
1LTC4332 2 SPI Digital SPI Extender, 2MHz, 3 Extended Slave Selects with Interrupt, 60V fault protected 1.62V to 5.5V-- Yes 6k $2.85 (LTC4332CUFD#PBF)
2LTC4331 2 I2C, SMBus Rugged I2C Extender up to 1200m with +/- 60V Fault Protection 1.8V to 5.5V No Yes Yes 40k $2.85 (LTC4331CUFD#PBF)
3LTC4318 2 I2C, SMBus Dual I2C/SMBus Address Translator 2.5V, 3.3V and 5V Yes Yes Yes 4k $1.95 (LTC4318CUF#PBF)
4LTC4317 2 I2C, SMBus Dual I2C/SMBus Address Translator 2.5V, 3.3V and 5V Yes Yes Yes 4k $1.75 (LTC4317CDHC#PBF)
5LTC4316 1 I2C, SMBus Single I2C/SMBus Address Translator 2.5V, 3.3V and 5V Yes Yes Yes 4k $1.45 (LTC4316CDD#PBF)
6LTC4315 2 I2C, SMBus 2-Wire Bus Buffer with High Noise Margin 1.5V/1.8V/2.5V/3.3V/5V Yes Yes Yes 4k $2.50 (LTC4315CDE#PBF)
7LTC4313-3Reference Circuit Available 2 I2C, SMBus 2-Wire Bus Buffers with High Noise Margin, No Rise Time Accelerator 1.5V/1.8V/2.5V/3.3V/5V Yes Yes Yes 4k $2.40 (LTC4313CMS8-3#PBF)
8LTC4313-2Reference Circuit Available 2 I2C, SMBus 2-Wire Bus Buffers with High Noise Margin, Rise Time Accelerator 2.5mA Current Source 1.5V/1.8V/2.5V/3.3V/5V Yes Yes Yes 4k $2.40 (LTC4313CMS8-2#PBF)
9LTC4313-1Reference Circuit Available 2 I2C, SMBus 2-Wire Bus Buffers with High Noise Margin, Rise Time Accelerator Slew Limited Switch 1.5V/1.8V/2.5V/3.3V/5V Yes Yes Yes 4k $2.40 (LTC4313CMS8-1#PBF)
10LTC4314 2 I2C, SMBus Pin-Selectable, 4-Channel, 2-Wire Multiplexer with Bus Buffer 1.5V/1.8V/2.5V/3.3V/5V Yes Yes Yes 10k $2.65 (LTC4314CGN#PBF)
11LTC4312 2 I2C, SMBus Pin-Selectable, 2-Channel, 2-Wire Multiplexer with Bus Buffer 1.5V/1.8V/2.5V/3.3V/5V Yes Yes Yes 10k $1.95 (LTC4312CDE#PBF)
12LTC4310-2 1 I2C, SMBus Bidirectional Hot-Swappable I2C Isolator 3V/5.5V Yes Yes Yes 5k $1.48 (LTC4310CDD-2#PBF)
13LTC4310-1 1 I2C, SMBus Bidirectional Hot-Swappable I2C Isolator 3V/5.5V Yes Yes Yes 5k $1.48 (LTC4310CDD-1#PBF)
14LTC4308 1 I2C, SMBus Low Voltage Hot Swappable Bus Buffer 1V to 2.3V/5.5V Yes Yes Yes 6k $2.15 (LTC4308CDD#PBF)
15LTC4309 2 I2C, SMBus Low Offset Hot Swappable Bus Buffer 1.8V to 2.3V/5.5V Yes Yes Yes 6k $2.25 (LTC4309CDE#PBF)
16LTC4307-1 1 I2C, SMBus High Definition Multimedia Interface (HDMI) 2-Wire Bus Buffer 2.3V/5.5V Yes No Yes 5k $2.15 (LTC4307CDD-1#PBF)
17LTC4307 1 I2C, SMBus Low Offset Hot Swappable 2-Wire Bus Buffer 2.3V/5.5V Yes Yes Yes 5k $2.15 (LTC4307CDD#PBF)
18LTC4311 1 I2C, SMBus Low Voltage I2C/SMBus Accelerator- No No Yes 8k $1.55 (LTC4311CDC#TRPBF)
19LTC4306 1 I2C, SMBus 4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering 2.7V/5.5V Yes Yes No 10k $3.50 (LTC4306CGN#PBF)
20LTC4305 1 I2C, SMBus 2-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering 2.7V/5.5V Yes Yes No 10k $2.80 (LTC4305CGN#PBF)
21LTC4304 1 I2C, SMBus Hot Swappable Bus Buffer 2.7V/5.5V Yes Yes Yes 15k $2.20 (LTC4304CMS#PBF)
22LTC4303 1 I2C, SMBus Hot Swappable Bus Buffer 2.7V/5.5V Yes Yes Yes 15k $2.10 (LTC4303CMS8#PBF)
23LTC4301L 1 I2C, SMBus 1V Compatible Supply-Independent Bus Buffer 1V to 2.7V/5.5V Yes No Yes 10k $2.05 (LTC4301LCMS8#PBF)
24LTC4300A-3 1 I2C, SMBus Hot Swappable Bus Buffer 2.7V/5.5V Yes No Yes 2k $1.75 (LTC4300A-3CMS8#PBF)
25LTC4301 1 I2C, SMBus Supply-Independent Bus Buffer 2.7V/5.5V Yes No Yes 10k $1.95 (LTC4301CMS8#PBF)
26LTC4302-2 1 I2C, SMBus Hot Swappable Bus Buffer 2.7V/5.5V Yes No Yes 2k $2.50 (LTC4302CMS-2#PBF)
27LTC4302-1 1 I2C, SMBus Hot Swappable Bus Buffer, Two GPIOs 2.7V/5.5V Yes No Yes 2k $2.50 (LTC4302CMS-1#PBF)
28LTC4300A-2 1 I2C, SMBus Hot Swappable Bus Buffer and Accelerator Disable 2.7V/5.5V Yes No No 2k $1.75 (LTC4300A-2CMS8#PBF)
29LTC4300A-1 1 I2C, SMBus Hot Swappable Bus Buffer 2.7V/5.5V Yes No Yes 2k $1.75 (LTC4300A-1CMS8#PBF)
30LTC1694-1 1 I2C, SMBus SMBus/I²C Accelerator- No No No- $1.30 (LTC1694-1CS5#TRPBF)
31LTC1694 1 I2C, SMBus SMBus/I²C Accelerator- No No No- $1.30 (LTC1694CS5#TRPBF)