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MAX1619 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part No. MAX1619
Description  Remote/Local Temperature Sensor with Dual- Alarm Outputs and SMBus Serial Interface
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX1619 Datasheet(HTML) 4 Page - Maxim Integrated Products

 
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9
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50
5k
500k
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5M
500
50M
TEMPERATURE ERROR vs.
POWER-SUPPLY NOISE FREQUENCY
FREQUENCY (Hz)
VIN = SQUARE WAVE APPLIED TO
VCC WITH NO 0.1µF VCC CAPACITOR
VIN = 250mVp-p
REMOTE DIODE
VIN = 100mVp-p
LOCAL DIODE
VIN = 100mVp-p
REMOTE DIODE
-20
-10
-15
0
-5
10
5
20
15
TEMPERATURE ERROR
vs. PC BOARD RESISTANCE
LEAKAGE RESISTANCE (M
Ω)
1
10
100
PATH = DXP TO GND
PATH = DXP TO VCC (5V)
-2
-1
0
1
2
-50
50
100
0
150
TEMPERATURE ERROR
vs. REMOTE-DIODE TEMPERATURE
TEMPERATURE (°C)
MOTOROLA MMBT3904
ZETEX FMMT3904
RANDOM
SAMPLES
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
Remote/Local Temperature Sensor with Dual-
Alarm Outputs and SMBus Serial Interface
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3.3V, TA = -55°C to +125°C, configuration byte = XCh, unless otherwise noted.) (Note 4)
Note 1: Guaranteed but not 100% tested.
Note 2: Quantization error is not included in specifications for temperature accuracy. For example, if the MAX1619 device tempera-
ture is exactly +66.7°C, the ADC may report +66°C, +67°C, or +68°C (due to the quantization error plus the +1/2°C offset
used for rounding up) and still be within the guaranteed ±1°C error limits for the +60°C to +100°C temperature range
(Table 2).
Note 3: A remote diode is any diode-connected transistor from Table 1. TR is the junction temperature of the remote diode. See
Remote Diode Selection for remote diode forward voltage requirements.
Note 4: Specifications from -55°C to +125°C are guaranteed by design, not production tested.
Note 5: 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 6: Note that a transition must internally provide at least a hold time in order to bridge the undefined region (300ns max) of
SMBCLK’s falling edge.
CONDITIONS
UNITS
MIN
TYP
MAX
PARAMETER
STBY, SMBCLK, SMBDATA
2.2
Logic Input High Voltage
V
2.4
STBY, SMBCLK, SMBDATA; VCC = 3V to 5.5V
V
0.8
Logic Input Low Voltage
ALERT, OVERT forced to 5.5V
µA
1
ALERT, OVERT Output High
Leakage Current
Logic inputs forced to VCC or GND
µA
-2
2
Logic Input Current
VCC = 3V
VCC = 5.5V
ALERT, OVERT, SMBDATA forced to 0.4V
mA
6
Logic Output Low Sink Current
SMBus INTERFACE


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