LTC6994-1/LTC6994-2 ELECTRICALCHARACTERISTICS The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. Test conditions are V+ = 2.25V to 5.5V, IN = 0V, DIVCODE = 0 to 15(NDIV = 1 to 221), RSET = 50k to 800k, RLOAD = 5k, CLOAD = 5pF unless otherwise noted.SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS tr Output Rise Time (Note 8) V+ = 5.5V 1.1 ns V+ = 3.3V 1.7 ns V+ = 2.25V 2.7 ns tf Output Fall Time (Note 8) V+ = 5.5V 1.0 ns V+ = 3.3V 1.6 ns V+ = 2.25V 2.4 ns Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 5: See Operation section, Table 1 and Figure 2 for a full explanation may cause permanent damage to the device. Exposure to any Absolute of how the DIV pin voltage selects the value of DIVCODE. Maximum Rating condition for extended periods may affect device Note 6: The IN pin has hysteresis to accommodate slow rising or falling reliability and lifetime. signals. The threshold voltages are proportional to V+. Typical values can Note 2: The LTC6994C is guaranteed functional over the operating be estimated at any supply voltage using: temperature range of –40°C to 85°C. VIN(RISING) ≈ 0.55 • V+ + 185mV and VIN(FALLING) ≈ 0.48 • V+ – 155mV Note 3: The LTC6994C is guaranteed to meet specified performance from Note 7: To conform to the Logic IC Standard, current out of a pin is 0°C to 70°C. The LTC6994C is designed, characterized and expected to arbitrarily given a negative value. meet specified performance from –40°C to 85°C but it is not tested or Note 8: Output rise and fall times are measured between the 10% and the QA sampled at these temperatures. The LTC6994I is guaranteed to meet 90% power supply levels with 5pF output load. These specifications are specified performance from –40°C to 85°C. The LTC6994H is guaranteed based on characterization. to meet specified performance from –40°C to 125°C. The LTC6994MP is Note 9: Settling time is the amount of time required for the output to settle guaranteed to meet specified performance from –55°C to 125°C. within ±1% of the final delay after a 0.5× or 2× change in I Note 4: Delay accuracy is defined as the deviation from the t SET . DELAY Note 10: Jitter is the ratio of the deviation of the programmed delay to the equation, assuming RSET is used to program the delay. mean of the delay. This specification is based on characterization and is not 100% tested. Rev. C For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
