MAXQ3181-RAN+ datasheet(9/84 Pages) MAXIM

9 / 84 page

Low-Power, Active Energy, Polyphase AFE

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VAVDD = VDVDD = VRST to 3.6V, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Input Low Current

IIL

VIN = 0.4V, weak pullup on

-50

μA

RESET Pullup Resistance

RRESET

150

200

IOH = -4mA

VDVDD

- 0.4

Output High Voltage (Except

RESET)

VOH

IOH = -6mA

VDVDD

- 0.5

IOL = 4mA

0.4

Output Low Voltage

VOL

IOL = 6mA

0.5

SYSTEM CLOCK SOURCES

External Clock Input Frequency

8.12

MHz

External Clock Input Duty Cycle

External HF Crystal Frequency

Fundamental mode

8.12

MHz

XTAL1, XTAL2 Internal Load

Capacitance

Internal RC Oscillator Frequency

7.4

7.6

8.6

MHz

Internal RC Oscillator Accuracy

±2

Internal RC Oscillator Current

120

μA

Internal RC Oscillator Startup

Delay

(Note 1)

0.45

μs

ANALOG-TO-DIGITAL CONVERTER

Input Voltage Range

VREF

Common-Mode Bias

VCOMM

1.14

Offset Error

±2

Offset Error Drift

±8

μV/

°C

Gain Error (G = 1)

0.05

Spurious-Free Dynamic Range

SFDR

Total Harmonic Distortion

THD

Input Bandwidth (-3dB)

(Note 1)

kHz

INTERNAL VOLTAGE REFERENCE

Temperature Coefficient

(Note 1)

ppm/

°C

Output Voltage

VREF

2.048

INTERNAL TEMPERATURE SENSOR

Temperature Error

(Note 1)

-4

°C

SPI SLAVE-MODE INTERFACE TIMING

Maximum SPI Clock Rate

(Note 3)

fSYS/4

MHz

SCLK Input Pulse-Width High

tSCH

(Note 3)

4 x

tSYS

SCLK Input Pulse-Width Low

tSCL

(Note 3)

4 x

tSYS

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