Datasheet LTC6994-1, LTC6994-2 (Analog Devices) - 4

LTC6994-1/LTC6994-2
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature 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. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply
V+ Operating Supply Voltage Range l 2.25 5.5 V Power-On Reset Voltage l 1.95 V IS(IDLE) Supply Current (Idle) RL = ∞, RSET = 50k, NDIV ≤ 64 V+ = 5.5V l 165 200 µA V+ = 2.25V l 125 160 µA RL = ∞, RSET = 50k, NDIV ≥ 512 V+ = 5.5V l 135 175 µA V+ = 2.25V l 105 140 µA RL = ∞, RSET = 800k, NDIV ≤ 64 V+ = 5.5V l 70 110 µA V+ = 2.25V l 60 95 µA RL = ∞, RSET = 800k, NDIV ≥ 512 V+ = 5.5V l 65 100 µA V+ = 2.25V l 55 90 µA
Analog Inputs
VSET Voltage at SET Pin l 0.97 1.00 1.03 V ∆VSET/∆T VSET Drift Over Temperature l ±75 µV/°C RSET Frequency-Setting Resistor l 50 800 kΩ VDIV DIV Pin Voltage l 0 V+ V ∆VDIV/∆V+ DIV Pin Valid Code Range (Note 5) Deviation from Ideal l ±1.5 % VDIV/V+ = (DIVCODE + 0.5)/16 DIV Pin Input Current l ±10 nA
Digital I/O
IN Pin Input Capacitance 2.5 pF IN Pin Input Current IN = 0V to V+ ±10 nA VIH High Level IN Pin Input Voltage (Note 6) l 0.7 • V+ V VIL Low Level IN Pin Input Voltage (Note 6) l 0.3 • V+ V IOUT(MAX) Output Current V+ = 2.7V to 5.5V ±20 mA VOH High Level Output Voltage (Note 7) V+ = 5.5V IOUT = –1mA l 5.45 5.48 V IOUT = –16mA l 4.84 5.15 V V+ = 3.3V IOUT = –1mA l 3.24 3.27 V IOUT = –10mA l 2.75 2.99 V V+ = 2.25V IOUT = –1mA l 2.17 2.21 V IOUT = –8mA l 1.58 1.88 V VOL Low Level Output Voltage (Note 7) V+ = 5.5V IOUT = 1mA l 0.02 0.04 V IOUT = 16mA l 0.26 0.54 V V+ = 3.3V IOUT = 1mA l 0.03 0.05 V IOUT = 10mA l 0.22 0.46 V V+ = 2.25V IOUT = 1mA l 0.03 0.07 V IOUT = 8mA l 0.26 0.54 V tPD Propagation Delay V+ = 5.5V 10 ns V+ = 3.3V 14 ns V+ = 2.25V 24 ns tWIDTH Minimum Recognized Input Pulse Width V+ = 3.3V 5 ns Rev. C 4 For more information www.analog.com 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