LTC2483 datasheet(5/32 Pages) LINER

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LTC2483

2483f

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

fEOSC

External Oscillator Frequency Range

●

4000

kHz

tHEO

External Oscillator High Period

●

0.125

100

µs

tLEO

External Oscillator Low Period

●

0.125

100

µs

tCONV_1

Conversion Time

Simultaneous 50Hz/60Hz

●

144.1

146.9

149.9

External Oscillator (Note 10)

●

41036/fEOSC

The

● denotes the specifications which apply over the full operating temperature

range, otherwise specifications are at TA = 25°C. (Note 3)

TI I G CHARACTERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of the device may be impaired.

Note 2: All voltage values are with respect to GND.

Note 3: VCC = 2.7V to 5.5V unless otherwise specified.

VREF = REF+ – REF–, VREFCM = (REF+ + REF–)/2, FS = 0.5VREF;

VIN = IN

+ – IN–, VINCM = (IN+ + IN–)/2.

Note 4: Use internal conversion clock or external conversion clock source

with fEOSC = 307.2kHz unless otherwise specified.

Note 5: Guaranteed by design, not subject to test.

Note 6: Integral nonlinearity is defined as the deviation of a code from a

straight line passing through the actual endpoints of the transfer curve.

The deviation is measured from the center of the quantization band.

Note 7: 50Hz fEOSC = 256kHz ±2% (external oscillator).

Note 8: 60Hz fEOSC = 307.2kHz ±2% (external oscillator).

Note 9: Simultaneous 50Hz/60Hz (internal oscillator) or fEOSC = 280kHz

±2% (external oscillator).

Note 10: The external oscillator is connected to the CA0/F0 pin. The

external oscillator frequency, fEOSC, is expressed in kHz.

Note 11: The converter uses the internal oscillator.

Note 12: The output noise includes the contribution of the internal

calibration operations.

Note 13: Guaranteed by design and test correlation.

Note 14: CB = capacitance of one bus line in pF.

Note 15: All values refer to VIH(MIN) and VIL(MAX) levels.

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 15)

I2C TI I G CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

fSCL

SCL Clock Frequency

●

400

kHz

tHD(SDA)

Hold Time (Repeated) START Condition

●

0.6

µs

tLOW

LOW Period of the SCL Clock Pin

●

1.3

µs

tHIGH

HIGH Period of the SCL Clock Pin

●

0.6

µs

tSU(STA)

Set-Up Time for a Repeated START Condition

●

0.6

µs

tHD(DAT)

Data Hold Time

●

0.9

µs

tSU(DAT)

Data Set-Up Time

●

100

Rise Time for Both SDA and SCL Signals

(Note 14)

●

20+0.1CB

300

Fall Time for Both SDA and SCL Signals

(Note 14)

●

20+0.1CB

300

tSU(STO)

Set-Up Time for STOP Condition

●

0.6

µs

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