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Reliability Data
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Features
- Improves SMBus/I²C™ Rise Time Transition
- Ensures Data Integrity with Multiple Devices on the SMBus/I²C
- Improves Low State Noise Margin
- Wide Supply Voltage Range: 2.7V to 6V
- Parallel Multiple LTC1694-1 Devices for Increased Drive
- Low Profile (1mm) SOT-23 (ThinSOT™) Package
Typical Application
Description
The LTC™1694-1 is a dual SMBus active pull-up designed to enhance data transmission speed and reliability under all specified SMBus loading conditions. The LTC1694-1 is also compatible with the Philips I²C Bus.
The LTC1694-1 allows multiple device connections or a longer, more capacitive interconnect, without compromising slew rates or bus performance, by supplying a high pull-up current of 2.2mA to slew the SMBus or I²C lines during positive bus transitions.
During negative transitions or steady DC levels, the LTC1694-1 sources zero current. External resistors, one on each bus line, trigger the LTC1694-1 during positive bus transitions and set the pull-down current level. These resistors determine the slew rate during negative bus transitions and the logic low DC level.
The LTC1694-1 is available in a 5-pin SOT-23 package.
SOT-23
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC1694-1CS5#PBF | SOT | 5 | C | $1.56 | |
| LTC1694-1CS5#TRMPBF | SOT | 5 | C | $1.61 | $1.35 |
| LTC1694-1CS5#TRPBF | SOT | 5 | C | $1.61 | $1.30 |
| LTC1694-1IS5#PBF | SOT | 5 | I | $2.01 | |
| LTC1694-1IS5#TRMPBF | SOT | 5 | I | $2.01 | $1.65 |
| LTC1694-1IS5#TRPBF | SOT | 5 | I | $2.01 | $1.60 |
| LTC1694CS5#PBF | SOT | 5 | C | $1.56 | |
| LTC1694CS5#TRMPBF | SOT | 5 | C | $1.61 | $1.35 |
| LTC1694CS5#TRPBF | SOT | 5 | C | $1.61 | $1.30 |
| LTC1694IS5#PBF | SOT | 5 | I | $2.01 | |
| LTC1694IS5#TRMPBF | SOT | 5 | I | $2.01 | $1.65 |
| LTC1694IS5#TRPBF | SOT | 5 | I | $2.01 | $1.60 |
| LTC1694-1CS5 | SOT | 5 | C | $3.12 | |
| LTC1694-1CS5#TR | SOT | 5 | C | $3.22 | $2.60 |
| LTC1694CS5 | SOT | 5 | C | $3.12 | |
| LTC1694CS5#TR | SOT | 5 | C | $3.22 | $2.60 |
| LTC1694-1IS5#TR | SOT | 5 | I | $4.02 | $3.20 |
| LTC1694IS5 | SOT | 5 | I | $4.02 | |
| LTC1694IS5#TR | SOT | 5 | I | $4.02 | $3.20 |
| LTC1694-1IS5 | SOT | 5 | I | $4.02 | |
| LTC1694-1CS5#TRM | SOT | 5 | C | $3.22 | $2.70 |
| LTC1694-1IS5#TRM | SOT | 5 | I | $4.02 | $3.30 |
| LTC1694CS5#TRM | SOT | 5 | C | $3.22 | $2.70 |
| LTC1694IS5#TRM | SOT | 5 | I | $4.02 | $3.30 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.