Datasheet

MAX34446
PMBus Power-Supply Data Logger
3Maxim Integrated
DC ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 2.7V to 5.5V, T
A
= -40NC to +105NC, unless otherwise noted. Typical values are at V
DD
= 3.3V, T
A
= +25NC.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
ADC Full-Scale Voltage
T
A
= +25NC
1.22 1.225 1.23 V
ADC Full-Scale Temperature Drift
T
A
= -40NC to +105NC
-0.6 +0.6 %
ADC Measurement Resolution V
LSB
300
FV
ADC Bit Resolution 12 Bits
RS+ Input Resistance R
IN
15
MI
ADC Integral Nonlinearity INL (Note 4)
Q8
LSB
ADC Offset V
OFFSET
Q2
LSB
Internal Temperature
Measurement Error
T
A
= -40NC to +85NC
-3 +3
NC
T
A
= -40NC to +105NC
-3.5 +3.5
Remote Temperature
Measurement Error
(MAX3446 Error Only)
T
A
= 0NC to +60NC,
T
DIODE
= +60NC to +120NC
-1.5 +1.5
NC
T
A
= 0NC to +60NC,
T
DIODE
= -45NC to +120NC
-1.75 +1.75
T
A
= -40NC to +105NC,
T
DIODE
= -45NC to +120NC
-3.5
+3.5
SYNC Frequency Range 20 500 kHz
SYNC Duty Cycle 40 50 60 %
Store Default All Time 37 ms
Nonvolatile Log Write Time 37 ms
Nonvolatile Log Delete Time 775 ms
Nonvolatile Log Overwrite Time 40 ms
Flash Endurance N
FLASH
T
A
= +50NC
20,000
Write
Cycles
Data Retention
T
A
= +50NC
100 Years
Current or Voltage Sample Rate 500
Fs
Temperature Sample Rate Per temperature sensor 1000 ms
Device Startup Time
Measurement from POR until monitoring
begins
12 ms