LTC2986 datasheet(3/26 Pages) AD

3 / 26 page

LTC2990

Rev. F

For more information www.analog.com

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VOFFSET_DIFF

Differential Offset

V1 = V2 = VCC, V3 = V4 = 0V

–12.5

12.5

LSB

VOFFSET_SE

Single-Ended Offset

V1, V2, V3, V4 = 0V

–6

LSB

VDIFF(CMR)

Differential Voltage Common Mode Range

VCC

VLSB(DIFF)

Differential Voltage LSB Weight

19.42

µV

VLSB(SINGLE-ENDED) Single-Ended Voltage LSB Weight

305.18

µV

VLSB(TEMP)

Temperature LSB Weight

Celsius or Kelvin

0.0625

Deg

TNOISE

Temperature Noise

Celsius or Kelvin

TMEAS = 46ms (Note 2)

0.2

0.05

°RMS

°/√Hz

Res

Resolution (No Missing Codes)

(Note 2)

Bits

INL

Integral Nonlinearity

2.9V ≤ VCC ≤ 5.5V, VIN(CM) = 1.5V

(Note 2)

Single-Ended

Differential

–2

LSB

CIN

V1 Through V4 Input Sampling

Capacitance

(Note 2)

0.35

IIN(AVG)

V1 Through V4 Input Average Sampling

Current

0V ≤ VN ≤ 3V (Note 2)

0.6

µA

IDC_LEAK(VIN)

V1 Through V4 Input Leakage Current

0V ≤ VN ≤ VCC

–10

Measurement Delay

TINT, TR1, TR2

Per Configured Temperature Measurement (Note 2)

V1, V2, V3, V4

Single-Ended Voltage Measurement

(Note 2) Per Voltage, Two Minimum l

1.2

1.5

1.8

V1 – V2, V3 – V4

Differential Voltage Measurement

(Note 2)

1.2

1.5

1.8

VCC

VCC Measurement

(Note 2)

1.2

1.5

1.8

Max Delay

Mode[4:0] = 11101, TINT, TR1, TR2, VCC

(Note 2)

167

V1, V3 Output (Remote Diode Mode Only)

IOUT

Output Current

Remote Diode Mode

260

350

µA

VOUT

Output Voltage

VCC

I2C Interface

VADR(L)

ADR0, ADR1 Input Low Threshold Voltage Falling

0.3 • VCC

VADR(H)

ADR0, ADR1 Input High Threshold Voltage Rising

0.7 • VCC

VOL1

SDA Low Level Maximum Voltage

IO = –3mA, VCC = 2.9V to 5.5V

0.4

VIL

Maximum Low Level Input Voltage

SDA and SCL Pins

0.3 • VCC

VIH

Minimum High Level Input Voltage

SDA and SCL Pins

0.7 • VCC

ISDAI,SCLI

SDA, SCL Input Current

0 < VSDA,SCL < VCC

±1

µA

IADR(MAX)

Maximum ADR0, ADR1 Input Current

ADR0 or ADR1 Tied to VCC or GND l

±1

µA

I2C Timing (Note 2)

fSCL(MAX)

Maximum SCL Clock Frequency

400

kHz

tLOW

Minimum SCL Low Period

1.3

µs

tHIGH

Minimum SCL High Period

600

tBUF(MIN)

Minimum Bus Free Time Between Stop/

Start Condition

1.3

µs

tHD,STA(MIN)

Minimum Hold Time After (Repeated)

Start Condition

600

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