Datasheet MAX1618 (Maxim) - 4

Remote Temperature Sensor with SMBus Serial Interface ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3.3V, configuration byte register = X8h,
TA = -55°C to +125°C,
unless otherwise noted.) (Note 5)
PARAMETER CONDITIONS MIN TYP MAX UNITS SMBus INTERFACE
STBY, SMBCLK, SMBDATA VCC = 3.0V 2.2 V Input High Voltage VCC = 5.5V 2.4 STBY, SMBCLK, SMBDATA
MAX1618
VCC = 3.0V to 5.5V 0.8 V Input Low Voltage STBY, SMBCLK, SMBDATA Logic inputs forced to VCC or GND -2 2 µA Input Current SMBCLK, SMBDATA Output SMBCLK, SMBDATA forced to 0.6V 6 mA Low Sink Current ALERT Output Low Sink Current ALERT forced to 0.4V 1 mA ALERT Output High Leakage ALERT forced to 5.5V 1 µA Current
Note 1:
Guaranteed, but not 100% tested.
Note 2:
A remote diode is any diode-connected transistor from Table 7. TR is the junction temperature of the remote diode. See Remote Diode Selection for remote-diode forward voltage requirements. Temperature specification guaranteed for a diode with ideality factor (MTR = 1.013). Additional error = (1.013/M - 1) ✕ 273 + Temp where M = Ideality of remote diode used.
Note 3:
The SMBus logic block is a static design that works with clock frequencies down to DC. While slow operation is possible, it violates the 10kHz minimum clock frequency and SMBus specifications and may monopolize the bus.
Note 4:
Note that a transition must internally provide at least a hold time to bridge the undefined region (300ns max) of SMBCLK’s falling edge.
Note 5:
Specifications from -55°C to +125°C are guaranteed by design, not production tested.
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
TEMPERATURE ERROR TEMPERATURE ERROR TEMPERATURE ERROR vs. vs. LEAKAGE RESISTANCE vs. REMOTE-DIODE TEMPERATURE POWER-SUPPLY NOISE FREQUENCY
40 2.50 2 PATH = DXP TO GND AND CONFIG = H00 1 30 PATH = DXP TO GND AND CONFIG = H08 2.00 MAX1618 toc01 MAX1618 toc02 0 MAX1618 toc03 20 °C) °C) 1.50 -1 10 -2 1.00 0 -3 VIN = 100mVp-p 0.50 -10 -4 VIN = 250mVp-p 0.00 -5 TEMPERATURE ERROR (°C) PATH = DXP TO V -20 CC (5.0V) TEMPERATURE ERROR ( TEMPERATURE ERROR ( AND CONFIG = H08 -6 -30 PATH = DXP TO VCC (5.0V) -0.50 CENTRAL CMPT3904 V AND CONFIG = H00 -7 IN = SQUARE WAVE APPLIED TO RANDOM SAMPLE VCC WITH NO 0.1µF VCC CAPACITOR -40 -1.00 -8 1 10 100 -55 -35 -15 5 25 45 65 85 105 125 0.005 0.05 0.5 5 50 LEAKAGE RESISTANCE (MΩ) TEMPERATURE (°C) POWER-SUPPLY NOISE FREQUENCY (MHz)
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