MAXQ314 datasheet(5/16 Pages) MAXIM

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Single-Phase Power-Measurement

IC with I2C Interface

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (continued)

(VAVDD = VDVDD = 3.0V to 3.6V, TA = +25NC, unless otherwise noted.) (Note 2)

I2C ELECTRICAL CHARACTERISTICS

(VAVDD = VDVDD = 3.0V to 3.6V, TA = -40NC to +85NC.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Low Voltage (AUX)

VOL

IOL = 6mA

0.4

Input Leakage (A0, A1, A2)

-12

+12

Input Capacitance (RST, A0,

A1, A2)

CIN

RST Pullup Resistance

RRST

150

200

INTERNAL OSCILLATOR

Oscillator Frequency

fSCLK

7.2

8.8

MHz

AFE AND ANALOG-TO-DIGITAL CONVERTER

Voltage Range (VP)

1.5

Voltage Range (VN)

1.5

Slow Current Channel (IL)

1.5

Input Capacitance Single-Ended

ADC Sampling Rate

Per channel

ksps

INTERNAL VOLTAGE REFERENCE

Reference Accuracy

TA = -40NC to +85NC

1.8

2.07

2.3

TEMPERATURE SENSOR

Temperature Accuracy

TEP = -40NC to +85NC

PARAMETER

SYMBOL

CONDITIONS

MIN

MAX

UNITS

Input Low Voltage

VIL_I2C

0.3 x VDVDD

Input High Voltage

VIH_I2C

0.7 x VDVDD

Input Hysteresis (Schmitt)

VIHYS_I2C VDVDD > 2V (Note 1)

0.05 x VDVDD

Output Logic-Low (Open Drain

or Open Collector)

VOL_I2C

VDVDD > 2V, 6mA sink current

0.4

Input Current on I/O

IIN_I2C

Input voltage from 0.1 x VDVDD to 0.9 x

VDVDD

-10

+10

I/O Capacitance

CIO_I2C

(Note 1)

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