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LTC2473CMS Datasheet(PDF) 4 Page - Linear Technology |
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LTC2473CMS Datasheet(HTML) 4 Page - Linear Technology |
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4 / 20 page  LTC2471/LTC2473 4 24713f The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 7) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS tCONV1 Conversion Time SPD = 0 l 3.2 4 4.8 ms tCONV2 Conversion Time SPD = 1 l 0.8 1 1.2 ms fSCL SCL Clock Frequency l 0 400 kHz tHD(SDA,STA) Hold Time (Repeated) START Condition l 0.6 μs tLOW LOW Period of the SCL Pin l 1.3 μs tHIGH HIGH Period of the SCL Pin l 0.6 μs tSU(STA) Set-Up Time for a Repeated START Condition l 0.6 μs tHD(DAT) Data Hold Time l 0 0.9 μs tSU(DAT) Data Set-Up Time l 100 ns tr Rise Time for SDA, SCL Signals (Note 6) l 20 + 0.1CB 300 ns tf Fall Time for SDA, SCL Signals (Note 6) l 20 + 0.1CB 300 ns tSU(STO) Set-Up Time for STOP Condition l 0.6 μs tBUF Bus Free Time Between a Stop and Start Condition l 1.3 μs tOF Output Fall Time VIHMIN to VILMAX Bus Load CB = 10pF to 400pF (Note 6) l 20 + 0.1CB 250 ns tSP Input Spike Suppression l 50 ns Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2. All voltage values are with respect to GND. VCC = 2.7V to 5.5V unless otherwise specified. VREFCM = VREF/2, FS = VREF, –VREF ≤ VIN ≤ VREF VIN = VIN+ – VIN–, VINCM = (VIN+ + VIN–)/2. (LTC2473) Note 3. Guaranteed by design, not subject to test. Note 4. Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. Note 5: Input sampling current is the average input current drawn from the input sampling network while the LTC2471/LTC2473 are converting. Note 6: CB = capacitance of one bus line in pF. Note 7: All values refer to VIH(MIN) and VIL(MAX) levels. Note 8: A positive current is flowing into the DUT pin. Note 9: Voltage temperature coefficient is calculated by dividing the maximum change in output voltage by the specified temperature range. I2C TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 7) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIH High Level Input Voltage l 0.7VCC V VIL Low Level Input Voltage l 0.3VCC V II Digital Input Current (Note 8) l –10 10 μA VHYS Hysteresis of Schmidt Trigger Inputs (Note 3) l 0.05VCC V VOL Low Level Output Voltage (SDA) I = 3mA l 0.4 V IIN Input Leakage 0.1VCC ≤ VIN ≤ 0.9VCC l 1μA CI Capacitance for Each I/O Pin l 10 pF CB Capacitance Load for Each Bus Line l 400 pF VIH(A0) High Level Input Voltage for Address Pin l 0.95VCC V VIL(A0) Low Level Input Voltage for Address Pin l 0.05VCC V I2C INPUTS AND OUTPUTS |
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