LTC4151IMS datasheet(4/16 Pages) LINER

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LTC4151/LTC4151-1

41511fa

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Transition Noise

(SENSE+ – SENSE–)

VIN

ADIN

1.2

0.3

μVRMS

mVRMS

μVRMS

fCONV

Conversion Rate (Continuous Mode)

7.5

tCONV

Conversion Time (Snapshot Mode)

(SENSE+ – SENSE–)

ADIN, VIN

RADIN

ADIN Pin Input Resistance

ADIN = 3V

210

IADIN

ADIN Pin Input Current

ADIN = 3V

±2

μA

I2C Interface

VADR(H)

ADR0, ADR1 Input High Threshold

2.3

2.65

2.9

VADR(L)

ADRO, ADRI Input Low Threshold

0.3

0.6

0.9

IADR(IN)

ADRO, ADRI Input Current

ADR0, ADR1 = 0V or 3V

ADR0, ADR1 = 0.8V or 2.2V

±8

±70

μA

VSDA(OL)

SDA, SDAO Output Low Voltage

ISDA, ISDAO = 8mA

0.15

0.4

ISDA,SCL(IN)

SDA, SDAI, SDAO, SCL Input Current

SDA, SDAI, SDAO, SCL = 5V

0±2

μA

VSDA,SCL(TH)

SDA, SDAI, SCL Input Threshold

1.6

1.8

VSDA,SCL(CL)

SDA, SDAI, SCL Clamp Voltage

ISDA, ISDAI, ISCL = 3mA

5.5

6.1

6.6

I2C Interface Timing (Note 4)

fSCL(MAX)

Maximum SCL Clock Frequency

400

kHz

tLOW

Minimum SCL Low Period

0.65

1.3

μs

tHIGH

Minimum SCL High Period

600

tBUF(MIN)

Minimum Bus Free Time Between Stop/

Start Condition

0.12

1.3

μs

tHD,STA(MIN)

Minimum Hold Time After (Repeated)

Start Condition

140

600

tSU,STA(MIN)

Minimum Repeated Start Condition

Set-Up Time

600

tSU,STO(MIN)

Minimum Stop Condition Set-Up Time

600

tHD,DATI(MIN)

Minimum Data Hold Time Input

–100

tHD,DATO(MIN)

Minimum Data Hold Time Output

300

600

900

tSU,DAT(MIN)

Minimum Data Set-Up Time Input

100

tSP(MAX)

Maximum Suppressed Spike

Pulse Width

110

250

tRST

Stuck-Bus Reset Time

SCL or SDA/SDAI Held Low

SCL, SDA Input Capacitance

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: Internal clamps limit the SCL, SDA (LTC4151) and SDAI

(LTC4151-1) pins to a minimum of 5.5V. Driving these pins to voltages

beyond the clamp may damage the part. The pins can be safely tied to

higher voltages through a resistor that limits the current below 5mA.

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

temperature range, otherwise speciﬁcations are at TA = 25°C. VIN is from 7V to 80V, unless noted. (Note 3)

Note 3: All currents into pins are positive. All voltages are referenced to

GND, unless otherwise noted.

Note 4: Guaranteed by design and not subject to test.

Note 5: Integral nonlinearity and total unadjusted error of VIN are tested

between 7V and 80V.

Note 6: Offset error of VIN is deﬁned by extrapolating the straight line

measured between 7V and 80V.

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