MAX1668 Datasheet, PDF (3/17 Pages) Maxim Integrated Products – Multichannel Remote/Local Temperature Sensors

Multichannel Remote/Local
Temperature Sensors
ELECTRICAL CHARACTERISTICS (continued)
(V_CC = +3.3V, STBY = V_CC, configuration byte = X0XXXX00, T_A = 0°C to +125°C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN TYP
SMBus INTERFACE
Logic Input High Voltage
STBY, SMBCLK, SMBDATA; V_CC = 3V to 5.5V
2.2
Logic Input Low Voltage
STBY, SMBCLK, SMBDATA; V_CC = 3V to 5.5V
Logic Output Low Sink Current
ALERT, SMBDATA forced to 0.4V
6
ALERT Output High Leakage
Current
ALERT forced to 5.5V
Logic Input Current
SMBus Input Capacitance
Logic inputs forced to V_CC or GND
SMBCLK, SMBDATA
-1
5
SMBus Clock Frequency
(Note 4)
DC
SMBCLK Clock Low Time
t_LOW, 10% to 10% points
4.7
SMBCLK Clock High Time
t_HIGH, 90% to 90% points
4
SMBus Start-Condition Setup Time
4.7
SMBus Repeated Start-Condition
Setup Time
t_SU:STA, 90% to 90% points
250
SMBus Start-Condition Hold Time t_HD:STA, 10% of SMBDATA to 90% of SMBCLK
4
SMBus Stop-Condition Setup Time t_SU:STO, 90% of SMBCLK to 10% of SMBDATA
4
SMBus Data Valid to SMBCLK
Rising-Edge Time
t_SU:DAT, 10% or 90% of SMBDATA to 10% of SMBCLK 250
SMBus Data-Hold Time
t_HD:DAT, slave receive (Note 5)
0
SMBCLK Falling Edge to SMBus
Data-Valid Time
Master clocking in data
MAX UNITS
V
0.8
V
mA
1
µA
+1
µA
pF
100 kHz
µs
µs
µs
ns
µs
µs
ns
ns
1
µs
ELECTRICAL CHARACTERISTICS
(V_CC = +5V, STBY = V_CC, configuration byte = X0XXXX00, T_A = -55°C to +125°C, unless otherwise noted.) (Note 6)
PARAMETER
CONDITIONS
MIN TYP MAX
ADC AND POWER SUPPLY
Temperature Resolution
Monotonicity guaranteed
8
Initial Temperature Error,
Local Diode (Note 2)
Temperature Error, Remote Diode
(Notes 2, 3)
Supply-Voltage Range
T_A = +60°C to +100°C
T_A = -55°C to +125°C
T_R = +60°C to +100°C
T_R = -55°C to +125°C
-2
+2
-3
+3
-3
+3
-5
+5
4.5
5.5
Conversion Time
From stop bit to conversion complete (both channels) 260
380
UNITS
Bits
°C
°C
V
ms
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