Datasheet LTC2451 (Analog Devices) - 4

LTC2451
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
tOF Output Fall Time VIH(MIN) to VIL(MAX) Bus Load CB 10pF to l 20 + 0.1CB 250 ns 400pF (Note 6) tSP Input Spike Suppression l 50 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 4.
Integral nonlinearity is defined as the deviation of a code from may cause permanent damage to the device. Exposure to any Absolute a straight line passing through the actual endpoints of the transfer Maximum Rating condition for extended periods may affect device curve. The deviation is measured from the center of the quantization reliability and lifetime. band. Guaranteed by design, test correlation and 3-point transfer curve
Note 2.
All voltage values are with respect to GND. V measurement. CC = 2.7V to 5.5V, unless otherwise specified. Specifications apply to both 30Hz and 60Hz
Note 5.
Input sampling current is the average input current drawn from modes unless otherwise specified. the input sampling network while the LTC2451 is actively sampling the V + – + – + – input. C REF = VREF – VREF , VREFCM = (VREF + VREF )/2, FS = VREF – VREF ; B = capacitance of one bus line in pF. V – +
Note 6.
C REF ≤ VIN ≤ VREF B = capacitance of one bus line in pF.
Note 3.
Guaranteed by design, not subject to test.
Note 7.
All values refer to VIH(MIN) and VIL(MAX) levels.
Note 8.
A positive current is flowing into the DUT pin.
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C; graphs apply to both 30Hz and 60Hz modes, unless otherwise noted. Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity V + + + CC = VREF = 5V VCC = 5V, VREF = 3V VCC = VREF = 3V
3 3 3 2 2 2 1 1 1 0 0 0 TA = 90°C INL (LSB) INL (LSB) TA = –45°C, 25°C, 90°C INL (LSB) T –1 A = – 45°C, 25°C, 90°C –1 –1 TA = –45°C, 25°C –2 –2 –2 –3 –3 –3 0 1 2 3 4 5 0 0.5 1 1.5 2 2.5 3 0 0.5 1 1.5 2 2.5 3 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 2451 G01 2451 G02 2451 G03 2451fg 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Analog Input And References Power Requirements I2C Inputs And Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts