LTC4280CUFD datasheet(5/28 Pages) LINER

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LTC4280

4280f

ELECTRICAL CHARACTERISTICS The l denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VDD = 12V unless otherwise noted.

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 currents into pins are positive; all voltages are referenced to

GND unless otherwise speciﬁed.

Note 3: An internal clamp limits the GATE pin to a minimum of 5V above

SOURCE. Driving this pin to voltages beyond the clamp may damage the device.

Note 4: Offset error is the offset voltage measured from 1LSB when the

output code ﬂickers between 0000 0000 and 0000 0001.

Note 5: Integral nonlinearity is deﬁned as the deviation of a code from a

precise analog input voltage. Maximum speciﬁcations are limited by the

LSB step size and the single shot measurement. Typical speciﬁcations are

measured from the 1/4, 1/2 and 3/4 areas of the quantization band.

Note 6: Guaranteed by design and not subject to test.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

I2C Interface

VADR(H)

ADR0, ADR1, ADR2 Input High Voltage

INTVCC

–0.8

INTVCC

–0.4

INTVCC

–0.2

IADR(IN,Z)

ADR0, ADR1, ADR2 Hi-Z Input Current

ADR0, ADR1, ADR2 = 0.8V

ADR0, ADR1, ADR2 = INTVCC – 0.8V

–3

μA

VADR(L)

ADR0, ADR1, ADR2 Input Low Voltage

0.2

0.4

0.8

IADR(IN)

ADR0, ADR1, ADR2 Input Current

ADR0, ADR1, ADR2 = 0V, INTVCC

–80

μA

IALERT

ALERT Input Current

ALERT = 6.5V

±1

μA

VALERT(OL)

ALERT Output Low Voltage

IALERT = 3mA

0.2

0.4

VSDA,SCL(TH)

SDA, SCL Input Threshold

1.3

1.7

1.9

ISDA,SCL(OH)

SDA, SCL Input Current

SCL, SDA = 6.5V

±1

μA

VSDA(OL)

SDA Output Low Voltage

ISDA = 3mA

0.2

0.4

I2C Interface Timing

fSCL(MAX)

SCL Clock Frequency

Operates with fSCL ≤ fSCL(MAX)

400

1000

kHz

tBUF(MIN)

Bus Free Time Between Stop/Start Condition

0.12

1.3

μs

tHD,STA(MIN)

Hold Time After (Repeated) Start Condition

600

tSU,STA(MIN)

Repeated Start Condition Set-Up Time

600

tSU,STO(MIN)

Stop Condition Set-Up Time

140

600

tHD,DAT(MIN)

Data Hold Time (Input)

100

tHD,DATO

Data Hold Time (Output)

300

500

900

tSU,DAT(MIN)

Data Set-Up Time

600

tSP

Suppressed Spike Pulse Width

110

250

SCL, SDA Input Capacitance

SDAI Tied to SDAO (Note 6)

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