Datasheet LTC6909 (Analog Devices) - 3

LTC6909
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denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C or as noted. Test conditions are V+ = V+A = V+D = 2.7V to 5.5V, RL = 5k, CL = 5pF unless otherwise noted. The modulation is turned off (MOD is connected to OUT1) and PH = 8 unless otherwise specified. RSET is defined as the resistor connected from the SET pin to the V+A pin. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
RSET Range of the RSET Resistor 4.5V ≤ V+ ≤ 5.5V 10 2000 kΩ Connected Between the V+A Pin and 2.7V ≤ V+ ≤ 4.5V 20 2000 kΩ the SET Pin Frequency Spread with SSFM RSET = 100k l ±7 ±10 ±13 % Enabled MOD Pin = V+, GND or Open Long-Term Stability of the Output 300 ppm/√kHr Frequency (Note 9) Duty Cycle (Note 6) SSFM Disabled l 45 50 55 % V+A, V+D Operating Supply Voltage Range l 2.7 5.5 V IS V+ Combined Supply Current RSET = 2M, RL = ∞, PH = 8, MOD = V+, (fOUT = 12.5kHz), SSFM = fOUT/64 V+ = 5V l 0.6 0.85 mA V+ = 2.7V l 0.55 0.8 mA RSET = 20k, RL = ∞, PH = 3, MOD = GND, (fOUT = 3.33MHz), SSFM = fOUT/16 V+ = 5V l 2.4 2.7 mA V+ = 2.7V l 1.55 1.8 mA RSET = 2M, RL = ∞, PH = 8, MOD = OUT1, (fOUT = 12.5kHz), SSFM Off V+ = 5V l 0.4 0.65 mA V+ = 2.7V l 0.37 0.6 mA VIH_MOD High Level MOD Input Voltage l V+ – 0.4 V VIL_MOD Low Level MOD Input Voltage l 0.4 V IMOD MOD Input Current (Note 7) MOD Pin = V+, V+ = 5V l 2 4 µA MOD Pin = GND, V+ = 5V l –4 –2 µA VIH_PH High Level PHx Input Voltage PHx Refers to PH0, PH1 and PH2 l V+ – 0.4 V VIL_PH Low Level PHx Input Voltage PHx Refers to PH0, PH1 and PH2 l 0.4 V IIN_PHX Digital Input Current, PH0, PH1, PH2 0V < VIN < V+ l ±1 µA VOH High Level Output Voltage V+ = 5V No Load 4.92 V (OUT1 Through OUT8)(Note 7) 5mA Load to GND l 4.35 4.65 V V+ = 2.7V No Load 2.63 V 3mA Load to GND l 2.1 2.4 V VOL Low Level Output Voltage V+ = 5V No Load 0.07 V (OUT1 Through OUT8)(Note 7) 5mA Load to V+ l 0.25 0.55 V V+ = 2.7V No Load 0.07 V 3mA Load to V+ l 0.25 0.55 V tr Output Rise Time (Note 8) V+ = 5V 1.6 ns V+ = 2.7V 2.5 ns tf Output Fall Time (Note 8) V+ = 5V 1.6 ns V+ = 2.7V 2 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
The LTC6909C is guaranteed to meet specified performance from may cause permanent damage to the device. Exposure to any Absolute 0°C to 70°C. The LTC6909C is designed, characterized and expected to Maximum Rating condition for extended periods may affect device meet specified performance from –40°C to 85°C but is not tested or QA reliability and lifetime. sampled at these temperatures. The LTC6909I is guaranteed to meet
Note 2:
LTC6909C and the LTC6909I are guaranteed functional over the specified performance from –40°C to 85°C. The LTC6909H is guaranteed operating temperature range of –40°C to 85°C. to meet specified performance from –40°C to 125°C. 6909fa 3 Document Outline Features Applications Description Typical Application 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