MAXQ3181 Maxim, MAXQ3181 Datasheet - Page 9

• Manufacturer Part Number: MAXQ3181
• Description: The MAXQ3181 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, active power and energy, and many other metering parameters of a polyphase load
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
Input Low Current
RESET Pullup Resistance
Output High Voltage (Except
RESET)
Output Low Voltage
SYSTEM CLOCK SOURCES
External Clock Input Frequency
External Clock Input Duty Cycle
External HF Crystal Frequency
XTAL1, XTAL2 Internal Load
Capacitance
Internal RC Oscillator Frequency
Internal RC Oscillator Accuracy
Internal RC Oscillator Current
Internal RC Oscillator Startup
Delay
ANALOG-TO-DIGITAL CONVERTER
Input Voltage Range
Common-Mode Bias
Offset Error
Offset Error Drift
Gain Error (G = 1)
Spurious-Free Dynamic Range
Total Harmonic Distortion
Input Bandwidth (-3dB)
INTERNAL VOLTAGE REFERENCE
Temperature Coefficient
Output Voltage
INTERNAL TEMPERATURE SENSOR
Temperature Error
SPI SLAVE-MODE INTERFACE TIMING
Maximum SPI Clock Rate
SCLK Input Pulse-Width High
SCLK Input Pulse-Width Low
AVDD
= V
PARAMETER
DVDD
Low-Power, Active Energy, Polyphase AFE
= V
_______________________________________________________________________________________
RST
to 3.6V, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
SYMBOL
R
V
SFDR
COMM
V
RESET
THD
t
V
t
V
SCH
SCL
I
REF
OH
IL
OL
V
I
I
I
I
Fundamental mode
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 3)
(Note 3)
(Note 3)
OH
OH
OL
OL
IN
= 0.4V, weak pullup on
= 4mA
= 6mA
= -4mA
= -6mA
CONDITIONS
V
V
- 0.4
- 0.5
MIN
t
t
DVDD
DVDD
-50
7.4
4 x
4 x
SYS
SYS
50
45
-4
0
0
2.048
TYP
0.45
1.14
0.05
150
7.6
±2
16
50
±2
±8
90
90
30
7
f
MAX
SYS
V
8.12
8.12
200
120
0.4
0.5
8.6
+4
55
REF
/4
ppm/°C
UNITS
μV/°C
MHz
MHz
MHz
MHz
kHz
mV
k
μA
pF
μA
dB
dB
μs
°C
ns
ns
%
%
%
V
V
V
V
V
9