Datasheet LTC2483 (Analog Devices) - 5

LTC2483 T

iming characTerisTics
The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fEOSC External Oscillator Frequency Range l 10 4000 kHz tHEO External Oscillator High Period l 0.125 100 µs tLEO External Oscillator Low Period l 0.125 100 µs tCONV_1 Conversion Time Simultaneous 50Hz/60Hz l 144.1 146.9 149.9 ms External Oscillator (Note 10) l 41036/fEOSC ms i2

c Timing characTerisTics
The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 15) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fSCL SCL Clock Frequency l 0 400 kHz tHD(SDA) Hold Time (Repeated) START Condition l 0.6 µs tLOW LOW Period of the SCL Clock Pin l 1.3 µs tHIGH HIGH Period of the SCL Clock 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 Both SDA and SCL Signals (Note 14) l 20 + 0.1CB 300 ns tf Fall Time for Both SDA and SCL Signals (Note 14) l 20 + 0.1CB 300 ns tSU(STO) Set-Up Time for STOP Condition l 0.6 µs
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 7:
50Hz fEOSC = 256kHz ±2% (external oscillator). may cause permanent damage to the device. Exposure to any Absolute
Note 8:
60Hz fEOSC = 307.2kHz ±2% (external oscillator). Maximum Rating condition for extended periods may affect device
Note 9:
Simultaneous 50Hz/60Hz (internal oscillator) or f reliability and lifetime. EOSC = 280kHz ±2% (external oscillator).
Note 2:
All voltage values are with respect to GND.
Note 10:
The external oscillator is connected to the CA0/F0 pin. The
Note 3:
VCC = 2.7V to 5.5V unless otherwise specified. external oscillator frequency, fEOSC, is expressed in kHz. VREF = REF+ – REF–, VREFCM = (REF+ + REF–)/2, FS = 0.5VREF;
Note 11:
The converter uses the internal oscillator. VIN = IN+ – IN–, VINCM = (IN+ + IN–)/2.
Note 12:
The output noise includes the contribution of the internal
Note 4:
Use internal conversion clock or external conversion clock source calibration operations. with fEOSC = 307.2kHz unless otherwise specified.
Note 13:
Guaranteed by design and test correlation.
Note 5:
Guaranteed by design, not subject to test.
Note 14:
CB = capacitance of one bus line in pF.
Note 6:
Integral nonlinearity is defined as the deviation of a code from a
Note 15:
All values refer to V straight line passing through the actual endpoints of the transfer curve. IH(MIN) and VIL(MAX) levels. The deviation is measured from the center of the quantization band. 2483fc Document Outline Features Applications Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Analog Input and Reference I2C Digital Inputs and Digital Outputs Power Requirements Timing Characteristics I2C Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts