| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2 pcs
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2 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The LTC4307IMS8#PBF from Analog Devices is a hot-swappable, 2-wire bus buffer that enables I/O card insertion into live backplanes without corrupting data and clock buses. It offers bidirectional buffering, isolating backplane and card capacitances. The device features a low offset of 60mV, independent of load, and a high V_OL tolerance, allowing for cascading on clock and data buses.
Key electrical specifications include an operating voltage range of 2.3V to 5.5V and a maximum data rate of 400kHz. The LTC4307 includes a 30ms stuck bus timeout; if SDAOUT or SCLOUT remain low for this duration, the device automatically breaks the bus connection and attempts to recover by generating clock pulses. It also provides 1V precharge on SDA and SCL lines during insertion to minimize disturbances and offers ±5kV HBM ESD protection.
This buffer is compatible with I2C, I2C Fast Mode, and SMBus protocols. It is suitable for applications such as servers, RAID systems, and ATCA platforms where live board insertion is required. The LTC4307IMS8#PBF comes in an 8-MSOP package and supports surface mount.
The READY output is open-drain and indicates when the backplane and card sides are connected. The device also features high impedance SDA and SCL pins for VCC = 0V conditions.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 2.3V to 5.5V.
The maximum data rate is 400kHz.
The package type is 8-MSOP.
The operating temperature range is -40°C to 85°C.
Yes, it has a 30ms stuck bus timeout that attempts to free the bus by generating clock pulses.
The buffer offset is 60mV, independent of load.